XILINX XC3S5000

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Spartan-3 FPGA Family:
Complete Data Sheet
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DS099 July 13, 2004
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Advance Product Specification
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This document includes all four modules of the Spartan™-3 FPGA data sheet.
Module 1:
Introduction and Ordering Information
Module 3:
DC and Switching Characteristics
DS099-1 (v1.2) December 24, 2003
6 pages
DS099-3 (v1.3) March 4, 2004
40 pages
•
•
•
•
•
•
•
Introduction
Features
Architectural Overview
Product Availability
User I/O Chart
Ordering Information
•
Module 2:
Functional Description
DS099-2 (v1.2) July 11, 2003
40 pages
•
•
•
•
•
•
IOBs
- IOB Overview
- SelectIO™ Signal Standards
CLB Overview
Block RAM
Dedicated Multipliers
Digital Clock Manager (DCM)
- Clock Network
Configuration
DC Electrical Characteristics
- Absolute Maximum Ratings
- Supply Voltage Specifications
- Recommended Operating Conditions
- DC Characteristics
Switching Characteristics
- I/O Timing
- Core Logic Timing
- DCM Timing
- Configuration and JTAG Timing
Module 4:
Pinout Descriptions
DS099-4 (v1.5) July 13, 2004
106 pages
•
•
•
Pin Descriptions
- Pin Behavior During Configuration
Package Overview
Pinout Tables
- Footprints
IMPORTANT NOTE: The Spartan-3 FPGA data sheet is created and published in separate modules. This complete version
is provided for easy downloading and searching of the complete document. Page, figure, and table numbers begin at 1 for
each module, and each module has its own Revision History at the end. Use the PDF "Bookmarks" for easy navigation in
this volume.
© 2003-2004 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
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Spartan-3 FPGA Family:
Introduction and Ordering
Information
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DS099-1 (v1.2) December 24, 2003
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Advance Product Specification
Introduction
The Spartan™-3 family of Field-Programmable Gate Arrays
is specifically designed to meet the needs of high volume,
cost-sensitive consumer electronic applications. The
eight-member family offers densities ranging from 50,000 to
five million system gates, as shown in Table 1.
The Spartan-3 family builds on the success of the earlier
Spartan-IIE family by increasing the amount of logic
resources, the capacity of internal RAM, the total number of
I/Os, and the overall level of performance as well as by
improving clock management functions. Numerous
enhancements derive from state-of-the-art Virtex™-II technology. These Spartan-3 enhancements, combined with
advanced process technology, deliver more functionality
and bandwidth per dollar than was previously possible, setting new standards in the programmable logic industry.
Because of their exceptionally low cost, Spartan-3 FPGAs
are ideally suited to a wide range of consumer electronics
applications, including broadband access, home networking, display/projection and digital television equipment.
-
•
•
•
The Spartan-3 family is a superior alternative to mask programmed ASICs. FPGAs avoid the high initial cost, the
lengthy development cycles, and the inherent inflexibility of
conventional ASICs. Also, FPGA programmability permits
design upgrades in the field with no hardware replacement
necessary, an impossibility with ASICs.
•
Features
•
•
•
•
Revolutionary 90-nanometer process technology
Very low cost, high-performance logic solution for
high-volume, consumer-oriented applications
•
Densities as high as 74,880 logic cells
326 MHz system clock rate
Three power rails: for core (1.2V), I/Os (1.2V to
3.3V), and auxiliary purposes (2.5V)
SelectIO™ signaling
- Up to 784 I/O pins
- 622 Mb/s data transfer rate per I/O
- Seventeen single-ended signal standards
- Seven differential signal standards including LVDS
- Termination by Digitally Controlled Impedance
- Signal swing ranging from 1.14V to 3.45V
- Double Data Rate (DDR) support
Logic resources
- Abundant logic cells with shift register capability
- Wide multiplexers
- Fast look-ahead carry logic
- Dedicated 18 x 18 multipliers
- JTAG logic compatible with IEEE 1149.1/1532
specifications
SelectRAM™ hierarchical memory
- Up to 1,872 Kbits of total block RAM
- Up to 520 Kbits of total distributed RAM
Digital Clock Manager (up to four DCMs)
- Clock skew elimination
- Frequency synthesis
- High resolution phase shifting
Eight global clock lines and abundant routing
Fully supported by Xilinx ISE development system
- Synthesis, mapping, placement and routing
MicroBlaze processor, PCI, and other cores
Table 1: Summary of Spartan-3 FPGA Attributes
CLB Array
(One CLB = Four Slices)
System
Gates
Logic
Cells
Rows
XC3S50
50K
1,728
16
12
XC3S200
200K
4,320
24
XC3S400
400K
8,064
32
Device
DCMs
Maximum
User I/O
Maximum
Differential
I/O Pairs
2
124
56
12
4
173
76
16
4
264
116
Distributed
RAM (bits1)
Block RAM
(bits1)
Dedicated
Multipliers
192
12K
72K
4
20
480
30K
216K
28
896
56K
288K
Columns Total CLBs
XC3S1000
1M
17,280
48
40
1,920
120K
432K
24
4
391
175
XC3S1500
1.5M
29,952
64
52
3,328
208K
576K
32
4
487
221
XC3S2000
2M
46,080
80
64
5,120
320K
720K
40
4
565
270
XC3S4000
4M
62,208
96
72
6,912
432K
1,728K
96
4
712
312
XC3S5000
5M
74,880
104
80
8,320
520K
1,872K
104
4
784
344
Notes:
1. By convention, one Kb is equivalent to 1,024 bits.
© 2003 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
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Spartan-3 FPGA Family: Introduction and Ordering Information
Architectural Overview
The Spartan-3 family architecture consists of five fundamental programmable functional elements:
•
•
•
•
•
Configurable Logic Blocks (CLBs) contain RAM-based
Look-Up Tables (LUTs) to implement logic and storage
elements that can be used as flip-flops or latches.
CLBs can be programmed to perform a wide variety of
logical functions as well as to store data.
Input/Output Blocks (IOBs) control the flow of data
between the I/O pins and the internal logic of the
device. Each IOB supports bidirectional data flow plus
3-state operation. Twenty-four different signal
standards,
including
seven
high-performance
differential standards, are available as shown in
Table 2. Double Data-Rate (DDR) registers are
included. The Digitally Controlled Impedance (DCI)
feature provides automatic on-chip terminations,
simplifying board designs.
Block RAM provides data storage in the form of 18-Kbit
dual-port blocks.
Multiplier blocks accept two 18-bit binary numbers as
inputs and calculate the product.
Digital Clock Manager (DCM) blocks provide
self-calibrating, fully digital solutions for distributing,
delaying, multiplying, dividing, and phase shifting clock
signals.
These elements are organized as shown in Figure 1. A ring
of IOBs surrounds a regular array of CLBs. The XC3S50
has a single column of block RAM embedded in the array.
Those devices ranging from the XC3S200 to the XC3S2000
have two columns of block RAM. The XC3S4000 and
XC3S5000 devices have four RAM columns. Each column
is made up of several 18K-bit RAM blocks; each block is
associated with a dedicated multiplier. The DCMs are positioned at the ends of the outer block RAM columns.
The Spartan-3 family features a rich network of traces and
switches that interconnect all five functional elements,
transmitting signals among them. Each functional element
has an associated switch matrix that permits multiple connections to the routing.
DS099-1_01_032703
Notes:
1. The two additional block RAM columns of the XC3S4000 and XC3S5000
devices are shown with dashed lines. The XC3S50 has only the block RAM
column on the far left.
Figure 1: Spartan-3 Family Architecture
2
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Spartan-3 FPGA Family: Introduction and Ordering Information
Configuration
Spartan-3 FPGAs are programmed by loading configuration
data into robust static memory cells that collectively control
all functional elements and routing resources. Before powering on the FPGA, configuration data is stored externally in
a PROM or some other nonvolatile medium either on or off
the board. After applying power, the configuration data is
written to the FPGA using any of five different modes: Master Parallel, Slave Parallel, Master Serial, Slave Serial and
Boundary Scan (JTAG). The Master and Slave Parallel
modes use an 8-bit wide SelectMAP™ port.
The recommended memory for storing the configuration
data is the low-cost Xilinx Platform Flash PROM family,
which includes the XCF00S PROMs for serial configuration
and the higher density XCF00P PROMs for parallel or serial
configuration.
I/O Capabilities
The SelectIO feature of Spartan-3 devices supports 17 single-ended standards and seven differential standards as
listed in Table 2. Many standards support the DCI feature,
which uses integrated terminations to eliminate unwanted
signal reflections. Table 3 shows the number of user I/Os as
well as the number of differential I/O pairs available for each
device/package combination.
Table 2: Signal Standards Supported by the Spartan-3 Family
Standard
Category
Description
VCCO
(V)
Class
N/A
Terminated
Symbol
DCI
Option
Single-Ended
GTL
Gunning Transceiver Logic
GTL
Yes
GTLP
Yes
I
HSTL_I
Yes
III
HSTL_III
Yes
I
HSTL_I_18
Yes
II
HSTL_II_18
Yes
III
HSTL_III_18
Yes
1.2
N/A
LVCMOS12
No
1.5
N/A
LVCMOS15
Yes
1.8
N/A
LVCMOS18
Yes
2.5
N/A
LVCMOS25
Yes
3.3
N/A
LVCMOS33
Yes
LVTTL
No
Plus
HSTL
High-Speed Transceiver Logic
1.5
1.8
LVCMOS
Low-Voltage CMOS
LVTTL
Low-Voltage Transistor-Transistor Logic
3.3
N/A
PCI
Peripheral Component Interconnect
3.0
33 MHz
PCI33_3
No
SSTL
Stub Series Terminated Logic
1.8
N/A
SSTL18_I
Yes
2.5
I
SSTL2_I
Yes
II
SSTL2_II
Yes
LDT_25
No
LVDS_25
Yes
BLVDS_25
No
LVDSEXT_25
Yes
Ultra
ULVDS_25
No
Differential
LDT
Lightning Data Transport
(HyperTransport™)
LVDS
Low-Voltage Differential Signaling
2.5
N/A
Standard
Bus
Extended Mode
LVPECL
Low-Voltage Positive Emitter-Coupled
Logic
2.5
N/A
LVPECL_25
No
RSDS
Reduced-Swing Differential Signaling
2.5
N/A
RSDS_25
No
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Spartan-3 FPGA Family: Introduction and Ordering Information
Table 3: Spartan-3 I/O Chart
Available User I/Os and Differential (Diff) I/O Pairs
VQ100
TQ144
PQ208
FT256
FG320
FG456
FG676
FG900
FG1156
User
Diff
User
Diff
User
Diff
User
Diff
User
Diff
User
Diff
User
Diff
User
Diff
User
Diff
XC3S50
63
29
97
46
124
56
-
-
-
-
-
-
-
-
-
-
-
-
XC3S200
63
29
97
46
141
62
173
76
-
-
-
-
-
-
-
-
-
-
XC3S400
-
-
97
46
141
62
173
76
221
100
264
116
-
-
-
-
-
-
XC3S1000
-
-
-
-
-
-
173
76
221
100
333
149
391
175
-
-
-
-
XC3S1500
-
-
-
-
-
-
-
-
221
100
333
149
487
221
-
-
-
-
XC3S2000
-
-
-
-
-
-
-
-
-
-
-
-
489
221
565
270
-
-
XC3S4000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
633
300
712
312
XC3S5000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
633
300
784
344
Device
Notes:
1. All device options listed in a given package column are pin-compatible.
Product Ordering and Availability
Table 4 shows all valid device ordering combinations of
device density, speed grade, package, and temperature
range parameters for the Spartan-3 family as well as the
availability status of those combinations.
Table 4: Spartan-3 Device Availability
Package Type(1):
VQFP
TQFP
PQFP
FTBGA
Code:
VQ100
TQ144
PQ208
FT256
FG320
FG456
FG676
FG900
FG1156
XC3S50
(C, I)
(C, I)
(C, I)
-
-
-
-
-
-
XC3S200
(C, I)
(C, I)
(C, I)
(C, I)
-
-
-
-
-
XC3S400
-
(C, I)
(C, I)
(C, I)
(C, I)
(C, I)
-
-
-
XC3S1000
-
-
-
(C, I)
(C, I)
(C, I)
(C, I)
-
-
XC3S1500
-
-
-
-
(C, I)
(C, I)
(C, I)
-
-
XC3S2000
-
-
-
-
-
-
(C, I)
(C, I)
-
XC3S4000
-
-
-
-
-
-
-
(C, I)
(C, I)
XC3S5000
-
-
-
-
-
-
-
(C, I)
(C, I)
FBGA
Device
Notes:
1. Package types are explained in Ordering Information, page 5.
2. Commercial devices are offered in the -4 and -5 speed grades; industrial devices are only in the -4 speed grade.
3. C = Commercial, TJ = 0° to +85° C; I = Industrial, TJ = –40° C to +100° C.
4. Parentheses indicate that a given device is not yet released to production. Contact your local sales office for availability information.
4
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Spartan-3 FPGA Family: Introduction and Ordering Information
Ordering Information
Example:
XC3S50 -4 PQ208 C
Device Type
Temperature Range
Package Type / Number of Pins
Speed Grade
Device
Speed Grade
Package Type / Number of Pins
Temperature Range (TJ )
XC3S50
-4 Standard Performance
VQ100 100-pin Very Thin Quad Flat Pack (VQFP)
C Commercial (0°C to 85°C)
XC3S200
-5 High Performance
TQ144 144-pin Thin Quad Flat Pack (TQFP)
I
XC3S400
PQ208 208-pin Plastic Quad Flat Pack (PQFP)
XC3S1000
FT256 256-ball Fine-Pitch Thin Ball Grid Array (FTBGA)
XC3S1500
FG320 320-ball Fine-Pitch Ball Grid Array (FBGA)
XC3S2000
FG456 456-ball Fine-Pitch Ball Grid Array (FBGA)
XC3S4000
FG676 676-ball Fine-Pitch Ball Grid Array (FBGA)
XC3S5000
Industrial (–40°C to 100°C)
FG900 900-ball Fine-Pitch Ball Grid Array (FBGA)
FG1156 1156-ball Fine-Pitch Ball Grid Array (FBGA)
Package Marking
R
R
Device Type
Package
Speed Grade
SPARTAN
XC3S50TM
PQ208xxx0350
xxxxxxxxx
4C
Date Code
Lot Code
Operating Range
ds099-1_02_122403
Revision History
Date
Version No.
Description
04/11/03
1.0
Initial Xilinx release.
04/24/03
1.1
Updated block RAM, DCM, and multiplier counts for the XC3S50.
12/24/03
1.2
Added the FG320 package.
The Spartan-3 Family Data Sheet
DS099-1, Spartan-3 FPGA Family: Introduction and Ordering Information (Module 1)
DS099-2, Spartan-3 FPGA Family: Functional Description (Module 2)
DS099-3, Spartan-3 FPGA Family: DC and Switching Characteristics (Module 3)
DS099-4, Spartan-3 FPGA Family: Pinout Descriptions (Module 4)
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Spartan-3 FPGA Family: Introduction and Ordering Information
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040
Spartan-3 1.2V FPGA Family:
Functional Description
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DS099-2 (v1.2) July 11, 2003
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IOBs
IOB Overview
The Input/Output Block (IOB) provides a programmable,
bidirectional interface between an I/O pin and the FPGA’s
internal logic.
A simplified diagram of the IOB’s internal structure appears
in Figure 1. There are three main signal paths within the
IOB: the output path, input path, and 3-state path. Each
path has its own pair of storage elements that can act as
either registers or latches. For more information, see the
Storage Element Functions section. The three main signal
paths are as follows:
•
The input path carries data from the pad, which is
bonded to a package pin, through an optional
programmable delay element directly to the I line. After
the delay element, there are alternate routes through a
pair of storage elements to the IQ1 and IQ2 lines. The
IOB outputs I, IQ1, and IQ2 all lead to the FPGA’s
internal logic. The delay element can be set to ensure a
hold time of zero.
The output path, starting with the O1 and O2 lines,
carries data from the FPGA’s internal logic through a
multiplexer and then a three-state driver to the IOB
pad. In addition to this direct path, the multiplexer
provides the option to insert a pair of storage elements.
The 3-state path determines when the output driver is
high impedance. The T1 and T2 lines carry data from
•
•
•
the FPGA’s internal logic through a multiplexer to the
output driver. In addition to this direct path, the
multiplexer provides the option to insert a pair of
storage elements.
All signal paths entering the IOB, including those
associated with the storage elements, have an inverter
option. Any inverter placed on these paths is
automatically absorbed into the IOB.
Storage Element Functions
There are three pairs of storage elements in each IOB, one
pair for each of the three paths. It is possible to configure
each of these storage elements as an edge-triggered
D-type flip-flop (FD) or a level-sensitive latch (LD).
The storage-element-pair on either the Output path or the
Three-State path can be used together with a special multiplexer to produce Double-Data-Rate (DDR) transmission.
This is accomplished by taking data synchronized to the
clock signal’s rising edge and converting them to bits synchronized on both the rising and the falling edge. The combination of two registers and a multiplexer is referred to as a
Double-Data-Rate D-type flip-flop (FDDR).
See Double-Data-Rate Transmission, page 3 for more
information.
The signal paths associated with the storage element are
described in Table 1.
Table 1: Storage Element Signal Description
Storage
Element
Signal
Description
Function
D
Data input
Data at this input is stored on the active edge of CK enabled by CE. For latch operation when the
input is enabled, data passes directly to the output Q.
Q
Data output
The data on this output reflects the state of the storage element. For operation as a latch in
transparent mode, Q will mirror the data at D.
CK
Clock input
A signal’s active edge on this input with CE asserted, loads data into the storage element.
CE
Clock Enable input
When asserted, this input enables CK. If not connected, CE defaults to the asserted state.
SR
Set/Reset
Forces storage element into the state specified by the SRHIGH/SRLOW attributes. The
SYNC/ASYNC attribute setting determines if the SR input is synchronized to the clock or not.
REV
Reverse
Used together with SR. Forces storage element into the state opposite from what SR does.
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Spartan-3 1.2V FPGA Family: Functional Description
T
T1
D
Q
TFF1
CE
CK
SR
REV
DDR
MUX
TCE
T2
D
Q
TFF2
CE
CK
SR
REV
Three-state Path
O1
D
Q
VCCO
OFF1
CE
OTCLK1
CK
SR
Weak
Pull-Up
ESD
REV
I/O
Pin
DDR
MUX
OCE
O2
D
Programmable
Output
Driver
Q
OFF2
CE
OTCLK2
CK
SR
Weak
PullDown
DCI
REV
Weak
Keeper
Latch
Output Path
LVCMOS, LVTTL, PCI
IQ1
I
D
ICE
CK
SR
Fixed
Delay
Q
Single-ended Standards
using VREF
IFF1
CE
ICLK1
ESD
VREF
Pin
REV
Differential Standards
IQ2
D
I/O Pin
from
Adjacent
IOB
Q
IFF2
CE
ICLK2
CK
SR
REV
SR
REV
Input Path
Note: All IOB signals communicating with the FPGA's internal logic have the option of inverting polarity.
DS099_01_040703
Figure 1: Simplified IOB Diagram
2
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Spartan-3 1.2V FPGA Family: Functional Description
According to Figure 1, the clock line OTCLK1 connects the
CK inputs of the upper registers on the output and
three-state paths. Similarly, OTCLK2 connects the CK
inputs for the lower registers on the output and three-state
paths. The upper and lower registers on the input path have
independent clock lines: ICLK1 and ICLK2.
The enable line OCE connects the CE inputs of the upper
and lower registers on the output path. Similarly, TCE connects the CE inputs for the register pair on the three-state
path and ICE does the same for the register pair on the
input path.
The Set/Reset (SR) line entering the IOB is common to all
six registers, as is the Reverse (REV) line.
Each storage element supports numerous options in addition to the control over signal polarity described in the IOB
Overview section. These are described in Table 2.
Table 2: Storage Element Options
Option Switch
Function
Specificity
FF/Latch
Chooses between an edge-sensitive flip-flop or
a level-sensitive latch
Independent for each storage element.
SYNC/ASYNC
Determines whether SR is synchronous or
asynchronous
Independent for each storage element.
SRHIGH/SRLOW
Determines whether SR acts as a Set, which
forces the storage element to a logic “1"
(SRHIGH) or a Reset, which forces a logic “0”
(SRLOW).
Independent for each storage element, except
when using FDDR. In the latter case, the selection
for the upper element (OFF1 or TFF2) will apply to
both elements.
INIT1/INIT0
In the event of a Global Set/Reset, after
configuration or upon activation of the GTS net,
this switch decides whether to set or reset a
storage element. By default, choosing SRLOW
also selects INIT0; choosing SRHIGH also
selects INIT1.
Independent for each storage element, except
when using FDDR. In the latter case, selecting
INIT0 for one element applies to both elements
(even though INIT1 is selected for the other).
Double-Data-Rate Transmission
Double-Data-Rate (DDR) transmission describes the technique of synchronizing signals to both the rising and falling
edges of the clock signal. Spartan-3 devices use register-pairs in all three IOB paths to perform DDR operations.
The pair of storage elements on the IOB’s Output path
(OFF1 and OFF2), used as registers, combine with a special multiplexer to form a DDR D-type flip-flop (FDDR). This
primitive permits DDR transmission where output data bits
are synchronized to both the rising and falling edges of a
clock. It is possible to access this function by placing either
an FDDRRSE or an FDDRCPE component or symbol into
the design. DDR operation requires two clock signals (50%
duty cycle), one the inverted form of the other. These signals trigger the two registers in alternating fashion, as
shown in Figure 2. Commonly, the Digital Clock Manager
(DCM) generates the two clock signals by mirroring an
incoming signal, then shifting it 180 degrees. This approach
ensures minimal skew between the two signals.
DS099-2 (v1.2) July 11, 2003
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The storage-element-pair on the Three-State path (TFF1
and TFF2) can also be combined with a local multiplexer to
form an FDDR primitive. This permits synchronizing the output enable to both the rising and falling edges of a clock.
This DDR operation is realized in the same way as for the
output path.
The storage-element-pair on the input path (IFF1 and IFF2)
allows an I/O to receive a DDR signal. An incoming DDR
clock signal triggers one register and the inverted clock signal triggers the other register. In this way, the registers take
turns capturing bits of the incoming DDR data signal.
Aside from high bandwidth data transfers, DDR can also be
used to reproduce, or “mirror”, a clock signal on the output.
This approach is used to transmit clock and data signals
together. A similar approach is used to reproduce a clock
signal at multiple outputs. The advantage for both
approaches is that skew across the outputs will be minimal.
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Spartan-3 1.2V FPGA Family: Functional Description
clamp diodes are always connected to the pad, regardless
of the signal standard selected. The presence of diodes limits the ability of Spartan-3 I/Os to tolerate high signal voltages. The VIN absolute maximum rating in Table 1 in
Module 3: DC and Switching Characteristics specifies the
voltage range that I/Os can tolerate.
DCM
180˚ 0˚
FDDR
D1
Slew Rate Control and Drive Strength
Q1
Two options, FAST and SLOW, control the output slew rate.
The FAST option supports output switching at a high rate.
The SLOW option reduces bus transients. These options are
only available when using one of the LVCMOS or LVTTL
standards, which also provide up to seven different levels of
current drive strength: 2, 4, 6, 8, 12, 16, and 24 mA. Choosing the appropriate drive strength level is yet another means
to minimize bus transients.
CLK1
DDR MUX
Q
D2
Table 3 shows the drive strengths that the LVCMOS and
LVTTL standards support. The Fast option is indicated by
appending an "F" attribute after the output buffer symbol
OBUF or the bidirectional buffer symbol IOBUF. The Slow
option appends an "S" attribute. The drive strength in milliamperes follows the slew rate attribute. For example,
OBUF_LVCMOS18_S_6 or IOBUF_LVCMOS25_F_16.
Q2
CLK2
DS099-2_02_070303
Figure 2: Clocking the DDR Register
Table 3: Programmable Output Drive Current
Pull-Up and Pull-Down Resistors
The optional pull-up and pull-down resistors are intended to
establish High and Low levels, respectively, at unused I/Os.
The weak pull-up resistor optionally connects each IOB pad
to VCCO. A weak pull-down resistor optionally connects
each pad to GND. These resistors are placed in a design
using the PULLUP and PULLDOWN symbols in a schematic, respectively. They can also be instantiated as components, set as constraints or passed as attributes in HDL
code. These resistors can also be selected for all unused
I/O using the Bitstream Generator (BitGen) option UnusedPin. A Low logic level on HSWAP_EN activates the pull-up
resistors on all I/Os during configuration.
Weak-Keeper Circuit
Each I/O has an optional weak-keeper circuit that retains
the last logic level on a line after all drivers have been turned
off. This is useful to keep bus lines from floating when all
connected drivers are in a high-impedance state. This function is placed in a design using the KEEPER symbol.
Pull-up and pull-down resistors override the weak-keeper
circuit.
ESD Protection
Clamp diodes protect all device pads against damage from
Electro-Static Discharge (ESD) as well as excessive voltage
transients. Each I/O has two clamp diodes: One diode
extends P-to-N from the pad to VCCO and a second diode
extends N-to-P from the pad to GND. During operation,
these diodes are normally biased in the off state. These
4
40
Current Drive (mA)
Signal
Standard
2
4
6
8
12
16
24
LVCMOS12
3
3
3
-
-
-
-
LVCMOS15
3
3
3
3
3
-
-
LVCMOS18
3
3
3
3
3
3
-
LVCMOS25
3
3
3
3
3
3
3
LVCMOS33
3
3
3
3
3
3
3
LVTTL
3
3
3
3
3
3
3
Boundary-Scan Capability
All Spartan-3 IOBs support boundary-scan testing compatible with IEEE 1149.1 standards. See Boundary-Scan
(JTAG) Mode, page 36 for more information.
SelectIO Signal Standards
The IOBs support 17 different single-ended signal standards, as listed in Table 4. Furthermore, the majority of
IOBs can be used in specific pairs supporting any of six differential signal standards, as shown in Table 5. The desired
standard is selected by placing the appropriate I/O library
symbol or component into the FPGA design. For example,
the symbol named IOBUF_LVCMOS15_F_8 represents a
bidirectional I/O to which the 1.5V LVCMOS signal standard
has been assigned. The slew rate and current drive are set
to Fast and 8 mA, respectively.
Together with placing the appropriate I/O symbol, two externally applied voltage levels, VCCO and VREF select the
desired signal standard. The VCCO lines provide current to
the output driver. The voltage on these lines determines the
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Spartan-3 1.2V FPGA Family: Functional Description
output voltage swing for all standards except GTL and
GTLP.
All single-ended standards except the LVCMOS modes
require a Reference Voltage (VREF) to bias the input-switching threshold. Once a configuration data file is loaded into
the FPGA that calls for the I/Os of a given bank to use such
a signal standard, a few specifically reserved I/O pins on the
same bank automatically convert to VREF inputs. When
using one of the LVCMOS standards, these pins remain
I/Os because the VCCO voltage biases the input-switching
threshold, so there is no need for VREF. Select the VCCO and
VREF levels to suit the desired single-ended standard
according to Table 4.
Differential standards employ a pair of signals, one the
opposite polarity of the other. The noise canceling (e.g.,
Common-Mode Rejection) properties of these standards
permit exceptionally high data transfer rates. This section
introduces the differential signaling capabilities of Spartan-3
devices.
Each device-package combination designates specific I/O
pairs that are specially optimized to support differential
standards. A unique “L-number”, part of the pin name, identifies the line-pairs associated with each bank (see Module
4: Pinout Descriptions). For each pair, the letters “P” and
“N” designate the true and inverted lines, respectively. For
example, the pin names IO_L43P_7 and IO_L43N_7 indicate the true and inverted lines comprising the line pair L43
on Bank 7. The differential Output Voltage (VOD) parameter
measures the voltage difference the High and Low logic levels that a pair of differential outputs drive. The VOD range for
each of the differential standards is listed in Table 5. The
VCCO lines provide current to the outputs. The VREF lines
are not used. Select the VCCO level to suit the desired differential standard according to Table 5.
Table 4: Single-Ended I/O Standards (Values in Volts)
VCCO
For
Outputs
For
Inputs
VREF for
Inputs(1)
Board
Termination
Voltage (VTT)
GTL
Note 2
Note 2
0.8
1.2
GTLP
Signal
Standard
Note 2
Note 2
1
1.5
HSTL_I
1.5
-
0.75
0.75
HSTL_III
1.5
-
0.9
1.5
HSTL_I_18
1.8
-
0.9
0.9
HSTL_II_18
1.8
-
0.9
0.9
HSTL_III_18
1.8
-
1.1
1.8
LVCMOS12
1.2
1.2
-
-
LVCMOS15
1.5
1.5
-
-
LVCMOS18
1.8
1.8
-
-
LVCMOS25
2.5
2.5
-
-
LVCMOS33
3.3
3.3
-
-
LVTTL
3.3
3.3
-
-
DS099-2 (v1.2) July 11, 2003
Advance Product Specification
Table 4: Single-Ended I/O Standards (Values in Volts)
VCCO
Signal
Standard
For
Outputs
For
Inputs
VREF for
Inputs(1)
Board
Termination
Voltage (VTT)
PCI33_3
3.0
3.0
-
-
SSTL18_I
1.8
-
0.9
0.9
SSTL2_I
2.5
-
1.25
1.25
SSTL2_II
2.5
-
1.25
1.25
Notes:
1. Banks 4 and 5 of any Spartan-3 device in a VQ100 package
do not support signal standards using VREF.
2. The VCCO level used for the GTL and GTLP standards must
be no lower than the termination voltage (VTT), nor can it be
lower than the voltage at the I/O pad.
3. See Table 6 for a listing of the single-ended DCI standards.
Table 5: Differential I/O Standards
VCCO (Volts)
VOD(1) (mV)
For
Outputs
For
Inputs
VREF for
Inputs
(Volts)
LDT_25
2.5
-
-
430
670
LVDS_25
2.5
-
-
250
400
BLVDS_25
2.5
-
-
250
450
LVDSEXT_25
2.5
-
-
330
700
ULVDS_25
2.5
-
-
430
670
RSDS_25
2.5
-
-
100
400
Signal
Standard
Min.
Max.
Notes:
1. Measured with a termination resistor value (RT) of 100
Ohms.
2. See Table 6 for a listing of the differential DCI standards.
The need to supply VREF and VCCO imposes constraints on
which standards can be used in the same bank. See The
Organization of IOBs into Banks section for additional
guidelines concerning the use of the VCCO and VREF lines.
Digitally Controlled Impedance (DCI)
When the round-trip delay of an output signal — i.e., from
output to input and back again — exceeds rise and fall
times, it is common practice to add termination resistors to
the line carrying the signal. These resistors effectively
match the impedance of a device’s I/O to the characteristic
impedance of the transmission line, thereby preventing
reflections that adversely affect signal integrity. However,
with the high I/O counts supported by modern devices, adding resistors requires significantly more components and
board area. Furthermore, for some packages — e.g., ball
grid arrays — it may not always be possible to place resistors close to pins.
DCI answers these concerns by providing two kinds of
on-chip terminations: Parallel terminations make use of an
integrated resistor network. Series terminations result from
controlling the impedance of output drivers. DCI actively
adjusts both parallel and series terminations to accurately
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Spartan-3 1.2V FPGA Family: Functional Description
DCI is available only for certain I/O standards, as listed in
Table 6. DCI is selected by applying the appropriate I/O
standard extensions to symbols or components. There are
five basic ways to configure terminations, as shown in
Table 7. The DCI I/O standard determines which of these
terminations is put into effect.
match the characteristic impedance of the transmission line.
This adjustment process compensates for differences in I/O
impedance that can result from normal variation in the
ambient temperature, the supply voltage and the manufacturing process. When the output driver turns off, the series
termination, by definition, approaches a very high impedance; in contrast, parallel termination resistors remain at the
targeted values.
Table 6: DCI I/O Standards
VCCO (V)
Category of Signal
Standard
Signal Standard
Termination Type
For
Outputs
For
Inputs
VREF for
Inputs (V)
At Output
At Input
Single
Single
Single-Ended
Gunning
Transceiver Logic
GTL_DCI
1.2
1.2
0.8
GTLP_DCI
1.5
1.5
1.0
High-Speed
Transceiver Logic
HSTL_I_DCI
1.5
1.5
0.75
None
Split
HSTL_III_DCI
1.5
1.5
0.9
None
Single
HSTL_I_DCI_18
1.8
1.8
0.9
None
Split
HSTL_II_DCI_18
1.8
1.8
0.9
Split
HSTL_III_DCI_18
1.8
1.8
1.1
None
Single
LVDCI_15
1.5
1.5
-
None
LVDCI_18
1.8
1.8
-
Controlled impedance
driver
LVDCI_25
2.5
2.5
-
LVDCI_33
3.3
3.3
-
LVDCI_DV2_15
1.5
1.5
-
LVDCI_DV2_18
1.8
1.8
-
LVDCI_DV2_25
2.5
2.5
-
LVDCI_DV2_33
3.3
3.3
-
SSTL18_I_DCI
1.8
1.8
0.9
25-Ohm driver
SSTL2_I_DCI
2.5
2.5
1.25
25-Ohm driver
SSTL2_II_DCI
2.5
2.5
1.25
Split with 25-Ohm driver
LVDS_25_DCI
2.5
2.5
-
None
LVDSEXT_25_DCI
2.5
2.5
-
Low-Voltage CMOS
Stub Series
Terminated Logic
Controlled driver with
half-impedance
Split
Differential
Low-Voltage
Differential
Signalling
Split on
each line
of pair
Notes:
1. Bank 5 of any Spartan-3 device in a VQ100 or TQ144 package does not support DCI signal standards.
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Spartan-3 1.2V FPGA Family: Functional Description
Table 7: DCI Terminations
Schematic(1)
Termination
Controlled impedance output driver
I/O Standards
Z0
LVDCI_15
LVDCI_18
LVDCI_25
LVDCI_33
Z0
LVDCI_DV2_15
LVDCI_DV2_18
LVDCI_DV2_25
LVDCI_DV2_33
IOB
R
Controlled output driver with half impedance
IOB
R/2
Single resistor
VCCO
IOB
R
Split resistors
Z0
VCCO
IOB
2R
Z0
GTL_DCI
GTLP_DCI
HSTL_III_DCI(2)
HSTL_III_DCI_18(2)
HSTL_I_DCI(2)
HSTL_I_DCI_18(2)
HSTL_II_DCI_18
LVDS_25_DCI
LVDSEXT_25_DCI
2R
Split resistors with output driver impedance
fixed to 25Ω
SSTL18_I_DCI(3)
SSTL2_I_DCI(3)
SSTL2_II_DCI
VCCO
IOB
25Ω
2R
Z0
2R
Notes:
1. The value of R is equivalent to the characteristic impedance of the line connected to the I/O. It is also equal to half the value of RREF
for the DV2 standards and RREF for all other DCI standards.
2. For DCI using HSTL Classes I and III, terminations only go into effect at inputs (not at outputs).
3. For DCI using SSTL Class I, the split termination only goes into effect at inputs (not at outputs).
DS099-2 (v1.2) July 11, 2003
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Spartan-3 1.2V FPGA Family: Functional Description
One of eight
I/O Banks
Spartan-3 devices in these packages support eight independent VCCO supplies.
Bank 5
Bank 4
Bank 3
Bank 2
Bank 1
Bank 7
Bank 0
Bank 6
The DCI feature operates independently for each of the
device’s eight banks. Each bank has an "N" reference pin
(VRN) and a "P" reference pin, (VRP), to calibrate driver
and termination resistance. Only when using a DCI standard on a given bank do these two pins function as VRN
and VRP. When not using a DCI standard, the two pins function as user I/Os. As shown in Figure 3, add an external reference resistor to pull the VRN pin up to VCCO and another
reference resistor to pull the VRP pin down to GND. Both
resistors have the same value — commonly 50 Ohms —
with one-percent tolerance, which is either the characteristic
impedance of the line or twice that, depending on the DCI
standard in use. Standards having a symbol name that contains the letters “DV2” use a reference resistor value that is
twice the line impedance. DCI adjusts the output driver
impedance to match the reference resistors’ value or half
that, according to the standard. DCI always adjusts the
on-chip termination resistors to directly match the reference
resistors’ value.
DS099-2_03_060102
Figure 4: Spartan-3 I/O Banks (top view)
In contrast, the 144-pin Thin Quad Flat Pack (TQ144) package ties VCCO together internally for the pair of banks on
each side of the device. For example, the VCCO Bank 0 and
the VCCO Bank 1 lines are tied together. The interconnected
bank-pairs are 0/1, 2/3, 4/5, and 6/7. As a result, Spartan-3
devices in the TQ144 package support four independent
VCCO supplies.
VCCO
RREF (1%)
VRN
VRP
RREF (1%)
Spartan-3 Compatibility
DS099-2_04_091602
Figure 3: Connection of Reference Resistors (RREF)
The rules guiding the use of DCI standards on banks are as
follows:
1. No more than one DCI I/O standard with a Single
Termination is allowed per bank.
2. No more than one DCI I/O standard with a Split
Termination is allowed per bank.
3. Single Termination, Split Termination, ControlledImpedance Driver, and Controlled-Impedance Driver
with Half Impedance can co-exist in the same bank.
Within the Spartan-3 family, all devices are pin-compatible
by package. When the need for future logic resources outgrows the capacity of the Spartan-3 device in current use, a
larger device in the same package can serve as a direct
replacement. Larger devices may add extra VREF and VCCO
lines to support a greater number of I/Os. In the larger
device, more pins can convert from user I/Os to VREF lines.
Also, additional VCCO lines are bonded out to pins that were
“not connected” in the smaller device. Thus, it is important
to plan for future upgrades at the time of the board’s initial
design by laying out connections to the extra pins.
The Spartan-3 family is not pin-compatible with any previous Xilinx FPGA family.
See also The Organization of IOBs into Banks, page 8.
Rules Concerning Banks
The Organization of IOBs into Banks
When assigning I/Os to banks, it is important to follow the
following VCCO rules:
IOBs are allocated among eight banks, so that each side of
the device has two banks, as shown in Figure 4. For all
packages, each bank has independent VREF lines. For
example, VREF Bank 3 lines are separate from the VREF
lines going to all other banks.
For the Very Thin Quad Flat Pack (VQ), Plastic Quad Flat
Pack (PQ), Fine Pitch Thin Ball Grid Array (FT), and Fine
Pitch Ball Grid Array (FG) packages, each bank has dedicated VCCO lines. For example, the VCCO Bank 7 lines are
separate from the VCCO lines going to all other banks. Thus,
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40
1. Leave no VCCO pins unconnected on the FPGA.
2. Set all VCCO lines associated with the (interconnected)
bank to the same voltage level.
3. The VCCO levels used by all standards assigned to the
I/Os of the (interconnected) bank(s) must agree. The
Xilinx development software checks for this. Tables 4, 5,
and 6 describe how different standards use the VCCO
supply.
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Spartan-3 1.2V FPGA Family: Functional Description
4. If none of the standards assigned to the I/Os of the
(interconnected) bank(s) use VCCO, tie all associated
VCCO lines to 2.5V.
5. In general, apply 2.5V to VCCO Bank 4 from power-on to
the end of configuration. Apply the same voltage to
VCCO Bank 5 during parallel configuration or a
Readback operation. For information on how to
program the FPGA using 3.3V signals and power, see
the 3.3V-Tolerant Configuration Interface section.
If any of the standards assigned to the Inputs of the bank
use VREF, then observe the following additional rules:
1. Leave no VREF pins unconnected on any bank.
2. Set all VREF lines associated with the bank to the same
voltage level.
3. The VREF levels used by all standards assigned to the
Inputs of the bank must agree. The Xilinx development
software checks for this. Tables 4 and 6 describe how
different standards use the VREF supply.
If none of the standards assigned to the Inputs of a bank
use VREF for biasing input switching thresholds, all associated VREF pins function as User I/Os.
Exceptions to Banks Supporting I/O
Standards
Bank 5 of any Spartan-3 device in a VQ100 or TQ144 package does not support DCI signal standards. In this case,
bank 5 has neither VRN nor VRP pins.
Furthermore, banks 4 and 5 of any Spartan-3 device in a
VQ100 package do not support signal standards using
VREF (see Table 4). In this case, the two banks do not have
any VREF pins.
Supply Voltages for the IOBs
Three different supplies power the IOBs:
1. The VCCO supplies, one for each of the FPGA’s I/O
banks, power the output drivers, except when using the
GTL and GTLP signal standards. The voltage on the
VCCO pins determines the voltage swing of the output
signal.
2. VCCINT is the main power supply for the FPGA’s internal
logic.
3. The VCCAUX is an auxiliary source of power, primarily to
optimize the performance of various FPGA functions
such as I/O switching.
DS099-2 (v1.2) July 11, 2003
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The I/Os During Power-On, Configuration, and
User Mode
With no power applied to the FPGA, all I/Os are in a
high-impedance state. The VCCINT (1.2V), VCCAUX (2.5V),
and VCCO supplies may be applied in any order. Before
power-on can finish, VCCINT, VCCO Bank 4, and VCCAUX
must have reached their respective minimum recommended operating levels (see Table 2 in Module 3: DC and
Switching Characteristics). At this time, all I/O drivers
also will be in a high-impedance state. VCCO Bank 4,
VCCINT, and VCCAUX serve as inputs to the internal
Power-On Reset circuit (POR).
A Low level applied to HSWAP_EN input enables weak
pull-up resistors on User I/Os from power-on throughout
configuration. A High level on HSWAP_EN disables the
pull-up resistors, allowing the I/Os to float. As soon as
power is applied, the FPGA begins initializing its configuration memory. At the same time, the FPGA internally asserts
the Global Set-Reset (GSR), which asynchronously resets
all IOB storage elements to a Low state.
Upon the completion of initialization, INIT_B goes High,
sampling the M0, M1, and M2 inputs to determine the configuration mode. At this point, the configuration data is
loaded into the FPGA. The I/O drivers remain in a
high-impedance state (with or without pull-up resistors, as
determined by the HSWAP_EN input) throughout configuration.
The Global Three State (GTS) net is released during
Start-Up, marking the end of configuration and the beginning of design operation in the User mode. At this point,
those I/Os to which signals have been assigned go active
while all unused I/Os remain in a high-impedance state. The
release of the GSR net, also part of Start-up, leaves the IOB
registers in a Low state by default, unless the loaded design
reverses the polarity of their respective RS inputs.
In User mode, all weak, internal pull-up resistors on the I/Os
are disabled and HSWAP_EN becomes a “don’t care” input.
If it is desirable to have weak pull-up or pull-down resistors
on I/Os carrying signals, the appropriate symbol — e.g.,
PULLUP, PULLDOWN — must be placed at the appropriate
pads in the design. The Bitstream Generator (Bitgen) option
UnusedPin available in the Xilinx development software
determines whether unused I/Os collectively have pull-up
resistors, pull-down resistors, or no resistors in User mode.
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Spartan-3 1.2V FPGA Family: Functional Description
.
Left-Hand SLICEM
(Logic or Distributed RAM
or Shift Register)
Right-Hand SLICEL
(Logic Only)
COUT
CLB
SLICE
X1Y1
SLICE
X1Y0
COUT
Switch
Matrix
CIN
Interconnect
to Neighbors
SLICE
X0Y1
SHIFTOUT
SHIFTIN
SLICE
X0Y0
CIN
DS099-2_05_040703
Figure 5: Arrangement of Slices within the CLB
CLB Overview
The Configurable Logic Blocks (CLBs) constitute the main
logic resource for implementing synchronous as well as
combinatorial circuits. Each CLB comprises four interconnected slices, as shown in Figure 5. These slices are
grouped in pairs. Each pair is organized as a column with an
independent carry chain.
The nomenclature that the FPGA Editor — part of the Xilinx
development software — uses to designate slices is as follows: The letter "X" followed by a number identifies columns
of slices. The "X" number counts up in sequence from the
left side of the die to the right. The letter "Y" followed by a
number identifies the position of each slice in a pair as well
as indicating the CLB row. The "Y" number counts slices
starting from the bottom of the die according to the
sequence: 0, 1, 0, 1 (the first CLB row); 2, 3, 2, 3 (the second CLB row); etc. Figure 5 shows the CLB located in the
lower left-hand corner of the die. Slices X0Y0 and X0Y1
make up the column-pair on the left where as slices X1Y0
and X1Y1 make up the column-pair on the right. For each
CLB, the term “left-hand” (or SLICEM) is used to indicated
the pair of slices labeled with an even "X" number, such as
X0, and the term “right-hand” (or SLICEL) designates the
pair of slices with an odd "X" number, e.g., X1.
Elements Within a Slice
All four slices have the following elements in common: two
logic function generators, two storage elements, wide-function multiplexers, carry logic, and arithmetic gates, as
shown in Figure 6. Both the left-hand and right-hand slice
pairs use these elements to provide logic, arithmetic, and
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40
ROM functions. Besides these, the left-hand pair supports
two additional functions: storing data using Distributed RAM
and shifting data with 16-bit registers. Figure 6 is a diagram
of the left-hand slice; therefore, it represents a superset of
the elements and connections to be found in all slices. See
Function Generator, page 12 for more information.
The RAM-based function generator — also known as a
Look-Up Table or LUT — is the main resource for implementing logic functions. Furthermore, the LUTs in each
left-hand slice pair can be configured as Distributed RAM or
a 16-bit shift register. For information on the former, see
XAPP464: Using Look-Up Tables as Distributed RAM in
Spartan-3 FPGAs; for information on the latter, refer to
XAPP465: Using Look-Up Tables as Shift Registers (SRL16)
in Spartan-3 FPGAs. The function generators located in the
upper and lower portions of the slice are referred to as the
"G" and "F", respectively.
The storage element, which is programmable as either a
D-type flip-flop or a level-sensitive latch, provides a means
for synchronizing data to a clock signal, among other uses.
The storage elements in the upper and lower portions of the
slice are called FFY and FFX, respectively.
Wide-function multiplexers effectively combine LUTs in
order to permit more complex logic operations. Each slice
has two of these multiplexers with F5MUX in the lower portion of the slice and FXMUX in the upper portion. Depending on the slice, FXMUX takes on the name F6MUX,
F7MUX, or F8MUX. For more details on the multiplexers,
see XAPP466: Using Dedicated Multiplexers in Spartan-3
FPGAs.
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Spartan-3 1.2V FPGA Family: Functional Description
Notes:
1. Options to invert signal polarity as well as other options that enable lines for various functions are not shown.
2. The index i can be 6, 7, or 8, depending on the slice. In this position, the upper right-hand slice has an F8MUX,
and the upper left-hand slice has an F7MUX. The lower right-hand and left-hand slices both have an F6MUX.
Figure 6: Simplified Diagram of the Left-Hand SLICEM
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Spartan-3 1.2V FPGA Family: Functional Description
The carry chain, together with various dedicated arithmetic
logic gates, support fast and efficient implementations of
math operations. The carry chain enters the slice as CIN
and exits as COUT. Five multiplexers control the chain:
CYINIT, CY0F, and CYMUXF in the lower portion as well as
CY0G and CYMUXG in the upper portion. The dedicated
arithmetic logic includes the exclusive-OR gates XORF and
XORG (upper and lower portions of the slice, respectively)
as well as the AND gates GAND and FAND (upper and
lower portions, respectively).
5. Drives the DI input of the LUT. See Distributed RAM
section.
Main Logic Paths
Each of the two LUTs (F and G) in a slice have four logic
inputs (A1-A4) and a single output (D). This permits any
four-variable Boolean logic operation to be programmed
into them. Furthermore, wide function multiplexers can be
used to effectively combine LUTs within the same CLB or
across different CLBs, making logic functions with still more
input variables possible.
Central to the operation of each slice are two nearly identical data paths, distinguished using the terms top and bottom. The description that follows uses names associated
with the bottom path. (The top path names appear in parentheses.) The basic path originates at an interconnect-switch
matrix outside the CLB. Four lines, F1 through F4 (or G1
through G4 on the upper path), enter the slice and connect
directly to the LUT. Once inside the slice, the lower 4-bit
path passes through a function generator "F" (or "G") that
performs logic operations. The function generator’s Data
output, "D", offers five possible paths:
1. Exit the slice via line "X" (or "Y") and return to
interconnect.
2. Inside the slice, "X" (or "Y") serves as an input to the
DXMUX (DYMUX) which feeds the data input, "D", of
the FFY (FFX) storage element. The "Q" output of the
storage element drives the line XQ (or YQ) which exits
the slice.
3. Control the CYMUXF (or CYMUXG) multiplexer on the
carry chain.
4. With the carry chain, serve as an input to the XORF (or
XORG) exclusive-OR gate that performs arithmetic
operations, producing a result on "X" (or "Y").
5. Drive the multiplexer F5MUX to implement logic
functions wider than four bits. The "D" outputs of both
the F-LUT and G-LUT serve as data inputs to this
multiplexer.
In addition to the main logic paths described above, there
are two bypass paths that enter the slice as BX and BY.
Once inside the FPGA, BX in the bottom half of the slice (or
BY in the top half) can take any of several possible
branches:
1. Bypass both the LUT and the storage element, then exit
the slice as BXOUT (or BYOUT) and return to
interconnect.
2. Bypass the LUT, then pass through a storage element
via the D input before exiting as XQ (or YQ).
3. Control the wide function multiplexer F5MUX (or
F6MUX).
4. Via multiplexers, serve as an input to the carry chain.
12
40
6. BY can control the REV inputs of both the FFY and FFX
storage elements. See Storage Element Section.
7. Finally, the DIG_MUX multiplexer can switch BY onto to
the DIG line, which exits the slice.
Other slice signals shown in Figure 6, page 11 are discussed in the sections that follow.
Function Generator
The LUTs in both the right-hand and left-hand slice-pairs
not only support the logic functions described above, but
also can function as ROM that is initialized with data at the
time of configuration.
The LUTs in the left-hand slice-pair (even-numbered columns such as X0 in Figure 5) of each CLB support two
additional functions that the right-hand slice-pair (odd-numbered columns such as X1) do not.
First, it is possible to program the “left-hand LUTs” as distributed RAM. This type of memory affords moderate
amounts of data buffering anywhere along a data path. One
left-hand LUT stores 16 bits. Multiple left-hand LUTs can be
combined in various ways to store larger amounts of data. A
dual port option combines two LUTs so that memory access
is possible from two independent data lines. A Distributed
ROM option permits pre-loading the memory with data during FPGA configuration For more information, see the Distributed RAM section.
Second, it is possible to program each left-hand LUT as a
16-bit shift register. Used in this way, each LUT can delay
serial data anywhere from one to 16 clock cycles. The four
left-hand LUTs of a single CLB can be combined to produce
delays up to 64 clock cycles. The SHIFTIN and SHIFTOUT
lines cascade LUTs to form larger shift registers. It is also
possible to combine shift registers across more than one
CLB. The resulting programmable delays can be used to
balance the timing of data pipelines.
Block RAM Overview
All Spartan-3 devices support block RAM, which is organized as configurable, synchronous 18Kbit blocks. Block
RAM stores relatively large amounts of data more efficiently
than the distributed RAM feature described earlier. (The latter is better suited for buffering small amounts of data anywhere along signal paths.) This section describes basic
Block RAM functions. For more information, see XAPP463:
Using Block RAM in Spartan-3 FPGAs.
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Spartan-3 1.2V FPGA Family: Functional Description
The block RAM has a dual port structure. The two identical
data ports called A and B permit independent access to the
common RAM block, which has a maximum capacity of
18,432 bits — or 16,384 bits when no parity lines are used.
Each port has its own dedicated set of data, control and
clock lines for synchronous read and write operations.
There are four basic data paths, as shown in Figure 7: (1)
write to and read from Port A, (2) write to and read from Port
B, (3) data transfer from Port A to Port B, and (4) data transfer from Port B to Port A.
4 Read
Arrangement of RAM Blocks on Die
The XC3S50 has one column of block RAM. The Spartan-3
devices ranging from the XC3S200 to XC3S2000 have two
columns of block RAM. The XC3S4000 and XC3S5000
have four columns. The position of the columns on the die is
shown in Figure 1 in Module 1: Introduction and Ordering
Information. For a given device, the total available RAM
blocks are distributed equally among the columns. Table 8
shows the number of RAM blocks, the data storage capacity, and the number of columns for each device.
Table 8: Number of RAM Blocks by Device
Total Number
of RAM Blocks
Total
Addressable
Locations (bits)
Number
of
Columns
XC3S50
4
73,728
1
XC3S200
12
221,184
2
XC3S400
16
294,912
2
XC3S1000
24
442,368
2
XC3S1500
32
589,824
2
XC3S2000
40
737,280
2
XC3S4000
96
1,769,472
4
XC3S5000
104
1,916,928
4
Device
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Read 3
Write
Write
Spartan-3
Dual Port
Block RAM
Port B
A choice among primitives determines whether the block
RAM functions as dual- or single-port memory. A name of
the form RAM16_S[wA]_S[wB] calls out the dual-port primitive, where the integers wA and wB specify the total data
path width at ports wA and wB, respectively. Thus, a
RAM16_S9_S18 is a dual-port RAM with a 9-bit-wide Port A
and an 18-bit-wide Port B. A name of the form RAM16_S[w]
identifies the single-port primitive, where the integer w
specifies the total data path width of the lone port. A
RAM16_S18 is a single-port RAM with an 18-bit-wide port.
Other memory functions — e.g., FIFOs, data path width
conversion, ROM, etc. — are readily available using the
CORE Generator™ system, part of the Xilinx development
software.
The Internal Structure of the Block RAM
Port A
The aspect ratio — i.e., width vs. depth — of each block
RAM is configurable. Furthermore, multiple blocks can be
cascaded to create still wider and/or deeper memories.
Write
Write
Read
Read
2
1
DS099-2_12_030703
Figure 7: Block RAM Data Paths
Block RAM Port Signal Definitions
Representations
of
the
dual-port
primitive
RAM16_S[wA]_S[wB] and the single-port primitive
RAM16_S[w] with their associated signals are shown in
Figure 8a and Figure 8b, respectively. These signals are
defined in Table 9.
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Spartan-3 1.2V FPGA Family: Functional Description
RAM16_wA_wB
WEA
ENA
SSRA
CLKA
ADDRA[rA 1:0]
DIA[wA 1:0]
DIPA[3:0]
DOPA[pA 1:0]
DOA[wA 1:0]
WEB
ENB
SSRB
CLKB
ADDRB[rB 1:0]
DIB[wB 1:0]
DIPB[3:0]
WE
EN
SSR
CLK
ADDR[r 1:0]
DI[w 1:0]
DIP[p 1:0]
DOPB[pB 1:0]
DOB[wB 1:0]
(a) Dual-Port
RAM16_Sw
DOP[p 1:0]
DO[w 1:0]
(b) Single-Port
DS099-2_13_091302
Notes:
1. wA and wB are integers representing the total data path width (i.e., data bits plus parity bits) at ports A and B, respectively.
2. pA and pB are integers that indicate the number of data path lines serving as parity bits.
3. rA and rB are integers representing the address bus width at ports A and B, respectively.
4. The control signals CLK, WE, EN, and SSR on both ports have the option of inverted polarity.
Figure 8: Block RAM Primitives
Table 9: Block RAM Port Signals
Signal
Description
Address Bus
Data Input Bus
Port A
Signal
Name
Port B
Signal
Name
Direction
ADDRA
ADDRB
Input
The Address Bus selects a memory location for read or write
operations. The width (w) of the port’s associated data path
determines the number of available address lines (r).
DIA
DIB
Input
Data at the DI input bus is written to the addressed memory
location addressed on an enabled active CLK edge.
Function
It is possible to configure a port’s total data path width (w) to be
1, 2, 4, 9, 18, or 36 bits. This selection applies to both the DI and
DO paths of a given port. Each port is independent. For a port
assigned a width (w), the number of addressable locations will
be 16,384/(w-p) where "p" is the number of parity bits. Each
memory location will have a width of "w" (including parity bits).
See the DIP signal description for more information of parity.
Parity Data
Input(s)
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40
DIPA
DIPB
Input
Parity inputs represent additional bits included in the data input
path to support error detection. The number of parity bits "p"
included in the DI (same as for the DO bus) depends on a port’s
total data path width (w). See Table 10.
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Spartan-3 1.2V FPGA Family: Functional Description
Table 9: Block RAM Port Signals (Continued)
Signal
Description
Data Output
Bus
Port A
Signal
Name
Port B
Signal
Name
Direction
DOA
DOB
Output
Function
Basic data access occurs whenever WE is inactive. The DO
outputs mirror the data stored in the addressed memory
location.
Data access with WE asserted is also possible if one of the
following two attributes is chosen: WRITE_FIRST accesses
data before the write takes place. READ_FIRST accesses data
after the write occurs.
A third attribute, NO_CHANGE, latches the DO outputs upon
the assertion of WE.
It is possible to configure a port’s total data path width (w) to be
1, 2, 4, 9, 18, or 36 bits. This selection applies to both the DI and
DO paths. See the DI signal description.
Parity Data
Output(s)
DOPA
DOPB
Output
Parity inputs represent additional bits included in the data input
path to support error detection. The number of parity bits "p"
included in the DI (same as for the DO bus) depends on a port’s
total data path width (w). See Table 10.
Write Enable
WEA
WEB
Input
When asserted together with EN, this input enables the writing
of data to the RAM. In this case, the data access attributes
WRITE_FIRST, READ_FIRST or NO_CHANGE determines if
and how data is updated on the DO outputs. See the DO signal
description.
When WE is inactive with EN asserted, read operations are still
possible. In this case, a transparent latch passes data from the
addressed memory location to the DO outputs.
Clock Enable
ENA
ENB
Input
When asserted, this input enables the CLK signal to
synchronize Block RAM functions as follows: the writing of data
to the DI inputs (when WE is also asserted), the updating of data
at the DO outputs as well as the setting/resetting of the DO
output latches.
When de-asserted, the above functions are disabled.
Set/Reset
SSRA
SSRB
Input
When asserted, this pin forces the DO output latch to the value
that the SRVAL attribute is set to. A Set/Reset operation on one
port has no effect on the other ports functioning, nor does it
disturb the memory’s data contents. It is synchronized to the
CLK signal.
Clock
CLKA
CLKB
Input
This input accepts the clock signal to which read and write
operations are synchronized. All associated port inputs are
required to meet setup times with respect to the clock signal’s
active edge. The data output bus responds after a clock-to-out
delay referenced to the clock signal’s active edge.
Port Aspect Ratios
On a given port, it is possible to select a number of different
possible widths (w – p) for the DI/DO buses as shown in
Table 10. These two buses always have the same width.
This data bus width selection is independent for each port. If
the data bus width of Port A differs from that of Port B, the
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Block RAM automatically performs a bus-matching function.
When data are written to a port with a narrow bus, then read
from a port with a wide bus, the latter port will effectively
combine “narrow” words to form “wide” words. Similarly,
when data are written into a port with a wide bus, then read
from a port with a narrow bus, the latter port will divide
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Spartan-3 1.2V FPGA Family: Functional Description
“wide” words to form “narrow” words. When the data bus
width is eight bits or greater, extra parity bits become available. The width of the total data path (w) is the sum of the
DI/DO bus width and any parity bits (p).
The width selection made for the DI/DO bus determines the
number of address lines according to the relationship
expressed below:
r = 14 – [log(w–p)/log(2)]
(1)
n = 2r
(2)
The product of w and n yields the total block RAM capacity.
Equations (1) and (2) show that as the data bus width
increases, the number of address lines along with the number of addressable memory locations decreases. Using the
permissible DI/DO bus widths as inputs to these equations
provides the bus width and memory capacity measures
shown in Table 10.
In turn, the number of address lines delimits the total number (n) of addressable locations or depth according to the
following equation:
Table 10: Port Aspect Ratios for Port A or B
DI/DO Bus Width
(w – p bits)
DIP/DOP
Bus Width (p bits)
Total Data Path
Width (w bits)
ADDR Bus
Width (r bits)
No. of
Addressable
Locations (n)
Block RAM
Capacity
(bits)
1
0
1
14
16,384
16,384
2
0
2
13
8,192
16,384
4
0
4
12
4,096
16,384
8
1
9
11
2,048
18,432
16
2
18
10
1,024
18,432
32
4
36
9
512
18,432
Block RAM Data Operations
Writing data to and accessing data from the block RAM are
synchronous operations that take place independently on
each of the two ports.
The waveforms for the write operation are shown in the top
half of the Figure 9, Figure 10, and Figure 11. When the WE
and EN signals enable the active edge of CLK, data at the
DI input bus is written to the block RAM location addressed
by the ADDR lines.
There are a number of different conditions under which data
can be accessed at the DO outputs. Basic data access
always occurs when the WE input is inactive. Under this
16
40
condition, data stored in the memory location addressed by
the ADDR lines passes through a transparent output latch
to the DO outputs. The timing for basic data access is
shown in the portions of Figure 9, Figure 10, and Figure 11
during which WE is Low.
Data can also be accessed on the DO outputs when asserting the WE input. This is accomplished using two different
attributes:
Choosing the WRITE_FIRST attribute, data is written to the
addressed memory location on an enabled active CLK edge
and is also passed to the DO outputs. WRITE_FIRST timing
is shown in the portion of Figure 9 during which WE is High.
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Spartan-3 1.2V FPGA Family: Functional Description
CLK
WE
DI
XXXX
ADDR
DO
aa
0000
1111
2222
bb
cc
MEM(aa)
1111
XXXX
dd
2222
MEM(dd)
EN
DISABLED
READ
WRITE
MEM(bb)=1111
WRITE
MEM(cc)=2222
READ
DS099-2_14_030403
Figure 9: Waveforms of Block RAM Data Operations with WRITE_FIRST Selected
Choosing the READ_FIRST attribute, data already stored in
the addressed location pass to the DO outputs before that
location is over-written with new data from the DI inputs on
an enabled active CLK edge. READ_FIRST timing is shown
in the portion of Figure 10 during which WE is High.
CLK
WE
DI
XXXX
ADDR
DO
aa
0000
1111
2222
bb
cc
MEM(aa)
old MEM(bb)
XXXX
dd
old MEM(cc)
MEM(dd)
EN
DISABLED
READ
WRITE
MEM(bb)=1111
WRITE
MEM(cc)=2222
READ
DS099-2_15_030403
Figure 10: Waveforms of Block RAM Data Operations with READ_FIRST Selected
Choosing a third attribute called NO_CHANGE puts the DO
outputs in a latched state when asserting WE. Under this
condition, the DO outputs will retain the data driven just
DS099-2 (v1.2) July 11, 2003
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before WE was asserted. NO_CHANGE timing is shown in
the portion of Figure 11 during which WE is High.
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Spartan-3 1.2V FPGA Family: Functional Description
CLK
WE
DI
XXXX
ADDR
aa
DO
0000
1111
2222
bb
cc
XXXX
dd
MEM(aa)
MEM(dd)
EN
DISABLED
READ
WRITE
MEM(bb)=1111
WRITE
MEM(cc)=2222
READ
DS099-2_16_030403
Figure 11: Waveforms of Block RAM Data Operations with NO_CHANGE Selected
Dedicated Multipliers
All Spartan-3 devices provide embedded multipliers that
accept two 18-bit words as inputs to produce a 36-bit product. This section provides an introduction to multipliers. For
further details, see XAPP467: Using Embedded Multipliers
in Spartan-3 FPGAs.
The input buses to the multiplier accept data in two’s-complement form (either 18-bit signed or 17-bit unsigned). One
such multiplier is matched to each block RAM on the die.
The close physical proximity of the two ensures efficient
data handling. Cascading multipliers permits multiplicands
more than three in number as well as wider than 18-bits.
The multiplier is placed in a design using one of two primitives: an asynchronous version called MULT18X18 and a
version with a register at the outputs called MULT18X18S,
as shown in Figure 12a and Figure 12b, respectively. The
signals for these primitives are defined in Table 11.
The CORE Generator system produces multipliers based
on these primitives that can be configured to suit a wide
range of requirements.
A[17:0]
A[17:0]
MULT18X18S
B[17:0]
MULT18X18
P[35:0]
CLK
P[35:0]
B[17:0]
CE
RST
(a) Asynchronous 18-bit Multiplier
(b) 18-bit Multiplier with Register at Outputs
DS099-2_17_091302
Figure 12: Embedded Multiplier Primitives
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Spartan-3 1.2V FPGA Family: Functional Description
Table 11: Embedded Multiplier Primitives Descriptions
Signal
Name
Direction
Function
A[17:0]
Input
Apply one 18-bit multiplicand to these inputs. The MULT18X18S primitive requires a setup time
before the enabled rising edge of CLK.
B[17:0]
Input
Apply the other 18-bit multiplicand to these inputs. The MULT18X18S primitive requires a setup
time before the enabled rising edge of CLK.
P[35:0]
Output
The output on the P bus is a 36-bit product of the multiplicands A and B. In the case of the
MULT18X18S primitive, an enabled rising CLK edge updates the P bus.
CLK
Input
CLK is only an input to the MULT18X18S primitive. The clock signal applied to this input when
enabled by CE, updates the output register that drives the P bus.
CE
Input
CE is only an input to the MULT18X18S primitive. Enable for the CLK signal. Asserting this input
enables the CLK signal to update the P bus.
RST
Input
RST is only an input to the MULT18X18S primitive. Asserting this input resets the output register
on an enabled, rising CLK edge, forcing the P bus to all zeroes.
Notes:
1. The control signals CLK, CE and RST have the option of inverted polarity.
Digital Clock Manager (DCM)
Spartan-3 devices provide flexible, complete control over
clock frequency, phase shift and skew through the use of
the DCM feature. To accomplish this, the DCM employs a
Delay-Locked Loop (DLL), a fully digital control system that
uses feedback to maintain clock signal characteristics with a
high degree of precision despite normal variations in operating temperature and voltage. This section provides a fundamental description of the DCM. For further information,
see XAPP462: Using Digital Clock Managers (DCMs) in
Spartan-3 FPGAs.
Each member of the Spartan-3 family has four DCMs,
except the smallest, the XC3S50, which has two DCMs.
The DCMs are located at the ends of the outermost Block
RAM column(s). See Figure 1 in Module 1: Introduction
and Ordering Information. The Digital Clock Manager is
placed in a design as the “DCM” primitive.
The DCM supports three major functions:
•
Clock-skew Elimination: Clock skew describes the
extent to which clock signals may, under normal
circumstances, deviate from zero-phase alignment. It
occurs when slight differences in path delays cause the
DS099-2 (v1.2) July 11, 2003
Advance Product Specification
•
•
clock signal to arrive at different points on the die at
different times. This clock skew can increase set-up
and hold time requirements as well as clock-to-out
time, which may be undesirable in applications
operating at a high frequency, when timing is critical.
The DCM eliminates clock skew by aligning the output
clock signal it generates with another version of the
clock signal that is fed back. As a result, the two clock
signals establish a zero-phase relationship. This
effectively cancels out clock distribution delays that
may lie in the signal path leading from the clock output
of the DCM to its feedback input.
Frequency Synthesis: Provided with an input clock
signal, the DCM can generate a wide range of different
output clock frequencies. This is accomplished by
either multiplying and/or dividing the frequency of the
input clock signal by any of several different factors.
Phase Shifting: The DCM provides the ability to shift
the phase of all its output clock signals with respect to
its input clock signal.
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Spartan-3 1.2V FPGA Family: Functional Description
DCM
PSINCDEC
PSEN
PSCLK
Phase
Shifter
PSDONE
Clock
Distribution
Delay
CLK0
Output Stage
CLKFB
Delay Taps
Input Stage
CLKIN
CLK90
CLK180
CLK270
CLK2X
CLK2X180
CLKDV
CLKFX
CLKFX180
DFS
DLL
Status
Logic
RST
8
LOCKED
STATUS [7:0]
DS099-2_07_040103
Figure 13: DCM Functional Blocks and Associated Signals
The DCM has four functional components: the
Delay-Locked Loop (DLL), the Digital Frequency Synthesizer (DFS), the Phase Shifter (PS), and the Status Logic.
Each component has its associated signals, as shown in
Figure 13.
Delay-Locked Loop (DLL)
CLKIN
Delay
1
Delay
2
path together with logic for phase detection and control
forms a system complete with feedback as shown in
Figure 14.
Delay
n-1
Delay
n
Output Section
The most basic function of the DLL component is to eliminate clock skew. The main signal path of the DLL consists of
an input stage, followed by a series of discrete delay elements or taps, which in turn leads to an output stage. This
CLK0
CLK90
CLK180
CLK270
CLK2X
CLK2X180
CLKDV
Control
CLKFB
LOCKED
Phase
Detection
RST
DS099-2_08_041103
Figure 14: Simplified Functional Diagram of DLL
20
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Spartan-3 1.2V FPGA Family: Functional Description
The DLL component has two clock inputs, CLKIN and
CLKFB, as well as seven clock outputs, CLK0, CLK90,
CLK180, CLK270, CLK2X, CLK2X180, and CLKDV as
described in Table 12. The clock outputs drive simultaneously; however, the High Frequency mode only supports
a subset of the outputs available in the Low Frequency
mode. See DLL Frequency Modes, page 23. Signals that
initialize and report the state of the DLL are discussed in
The Status Logic Component, page 28.
Table 12: DLL Signals
Mode Support
Signal
Direction
Description
Low
Frequency
High
Frequency
CLKIN
Input
Accepts original clock signal.
Yes
Yes
CLKFB
Input
Accepts either CLK0 or CLK2X as feed back signal. (Set
CLK_FEEDBACK attribute accordingly).
Yes
Yes
CLK0
Output
Generates clock signal with same frequency and phase as CLKIN.
Yes
Yes
CLK90
Output
Generates clock signal with same frequency as CLKIN, only
phase-shifted 90°.
Yes
No
CLK180
Output
Generates clock signal with same frequency as CLKIN, only
phase-shifted 180°.
Yes
Yes
CLK270
Output
Generates clock signal with same frequency as CLKIN, only
phase-shifted 270°.
Yes
No
CLK2X
Output
Generates clock signal with same phase as CLKIN, only twice the
frequency.
Yes
No
CLK2X180
Output
Generates clock signal with twice the frequency of CLKIN,
phase-shifted 180° with respect to CLKIN.
Yes
No
CLKDV
Output
Divides the CLKIN frequency by CLKDV_DIVIDE value to generate
lower frequency clock signal that is phase-aligned to CLKIN.
Yes
Yes
The clock signal supplied to the CLKIN input serves as a
reference waveform, with which the DLL seeks to align the
feedback signal at the CLKFB input. When eliminating clock
skew, the common approach to using the DLL is as follows:
The CLK0 signal is passed through the clock distribution
network to all the registers it synchronizes. These registers
are either internal or external to the FPGA. After passing
through the clock distribution network, the clock signal
returns to the DLL via a feedback line called CLKFB. The
control block inside the DLL measures the phase error
between CLKFB and CLKIN. This phase error is a measure
of the clock skew that the clock distribution network intro-
DS099-2 (v1.2) July 11, 2003
Advance Product Specification
duces. The control block activates the appropriate number
of delay elements to cancel out the clock skew. Once the
DLL has brought the CLK0 signal in phase with the CLKIN
signal, it asserts the LOCKED output, indicating a “lock” on
to the CLKIN signal.
DLL Attributes and Related Functions
A number of different functional options can be set for the
DLL component through the use of the attributes described
in Table 13. Each attribute is described in detail in the sections that follow:
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Spartan-3 1.2V FPGA Family: Functional Description
Table 13: DLL Attributes
Attribute
Description
Values
CLK_FEEDBACK
Chooses either the CLK0 or CLK2X output to drive the
CLKFB input
NONE, 1X, 2X
DLL_FREQUENCY_MODE
Chooses between High Frequency and Low
Frequency modes
LOW, HIGH
CLKIN_DIVIDE_BY_2
Halves the frequency of the CLKIN signal just as it
enters the DCM
TRUE, FALSE
CLKDV_DIVIDE
Selects constant used to divide the CLKIN input
frequency to generate the CLKDV output frequency
1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5,
6.0, 6.5, 7.0, 7.5, 8, 9, 10, 11,
12, 13, 14, 15, and 16.
DUTY_CYCLE_CORRECTION
Enables 50% duty cycle correction for the CLK0,
CLK90, CLK180, and CLK270 outputs
TRUE, FALSE
DLL Clock Input Connections
An external clock source enters the FPGA using a Global
Clock Input Buffer (IBUFG), which directly accesses the global clock network or an Input Buffer (IBUF). Clock signals
within the FPGA drive a global clock net using a Global
Clock Multiplexer Buffer (BUFGMUX). The global clock net
connects directly to the CLKIN input. The internal and external connections are shown in Figure 15a and Figure 15c,
respectively. A differential clock (e.g., LVDS) can serve as
an input to CLKIN.
DLL Clock Output and Feedback Connections
As many as four of the nine DCM clock outputs can simultaneously drive the four BUFGMUX buffers on the same die
edge (top or bottom). All DCM clock outputs can simultaneously drive general routing resources, including interconnect leading to OBUF buffers.
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The feedback loop is essential for DLL operation and is
established by driving the CLKFB input with either the CLK0
or the CLK2X signal so that any undesirable clock distribution delay is included in the loop. It is possible to use either
of these two signals for synchronizing any of the seven DLL
outputs: CLK0, CLK90, CLK180, CLK270, CLKDV, CLK2X,
or CLK2X180. The value assigned to the CLK_FEEDBACK
attribute must agree with the physical feedback connection:
a value of 1X for the CLK0 case, 2X for the CLK2X case. If
the DCM is used in an application that does not require the
DLL — i.e., only the DFS is used — then there is no feedback loop so CLK_FEEDBACK is set to NONE.
There are two basic cases that determine how to connect
the DLL clock outputs and feedback connections: on-chip
synchronization and off-chip synchronization, which are
illustrated in Figure 15a through Figure 15d.
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Spartan-3 1.2V FPGA Family: Functional Description
FPGA
FPGA
BUFGMUX
BUFGMUX
BUFG
CLKIN
DCM
CLK90
CLK180
CLK270
CLKDV
CLK2X
CLK2X180
CLKFB
BUFG
CLKIN
DCM
Clock
Net Delay
CLK0
CLK90
CLK180
CLK270
CLKDV
CLK2X180
CLK2X
CLKFB
CLK0
BUFGMUX
BUFGMUX
CLK0
CLK2X
(a) On-Chip with CLK0 Feedback
(b) On-Chip with CLK2X Feedback
FPGA
IBUFG
CLKIN
DCM
FPGA
CLK90
CLK180
CLK270
CLKDV
CLK2X
CLK2X180
CLKFB
Clock
Net Delay
OBUFG
IBUFG
CLKIN
Clock
Net Delay
DCM
CLKFB
CLK0
OBUFG
IBUFG
CLK0
CLK90
CLK180
CLK270
CLKDV
CLK2X180
OBUFG
Clock
Net Delay
CLK2X
IBUFG
OBUFG
CLK2X
CLK0
(c) Off-Chip with CLK0 Feedback
(d) Off-Chip with CLK2X Feedback
DS099-2_09_071003
Notes:
1. In the Low Frequency mode, all seven DLL outputs are available. In the High Frequency mode, only the CLK0, CLK180,
and CLKDV outputs are available.
Figure 15: Input Clock, Output Clock, and Feedback Connections for the DLL
In the on-chip synchronization case (Figure 15a and
Figure 15b), it is possible to connect any of the DLL’s seven
output clock signals through general routing resources to
the FPGA’s internal registers. Either a Global Clock Buffer
(BUFG) or a BUFGMUX affords access to the global clock
network. As shown in Figure 15a, the feedback loop is created by routing CLK0 (or CLK2X, in Figure 15b) to a global
clock net, which in turn drives the CLKFB input.
attribute chooses between the two modes. When the
attribute is set to LOW, the Low Frequency mode permits all
seven DLL clock outputs to operate over a low-to-moderate
frequency range. When the attribute is set to HIGH, the High
Frequency mode allows the CLK0, CLK180 and CLKDV outputs to operate at the highest possible frequencies. The
remaining DLL clock outputs are not available for use in High
Frequency mode.
In the off-chip synchronization case (Figure 15c and
Figure 15d), CLK0 (or CLK2X) plus any of the DLL’s other
output clock signals exit the FPGA using output buffers
(OBUF) to drive an external clock network plus registers on
the board. As shown in Figure 15c, the feedback loop is
formed by feeding CLK0 (or CLK2X, in Figure 15d) back
into the FPGA using an IBUFG, which directly accesses the
global clock network, or an IBUF. Then, the global clock net
is connected directly to the CLKFB input.
Accommodating High Input Frequencies
DLL Frequency Modes
In addition to CLK0 for zero-phase alignment to the CLKIN
signal, the DLL also provides the CLK90, CLK180 and
CLK270 outputs for 90°, 180° and 270° phase-shifted signals, respectively. These signals are described in Table 12.
The DLL supports two distinct operating modes, High Frequency and Low Frequency, with each specified over a different clock frequency range. The DLL_FREQUENCY_MODE
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If the frequency of the CLKIN signal is high such that it
exceeds the maximum permitted, divide it down to an
acceptable value using the CLKIN_DIVIDE_BY_2 attribute.
When this attribute is set to TRUE, the CLKIN frequency is
divided by a factor of two just as it enters the DCM.
Coarse Phase Shift Outputs of the DLL Component
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Spartan-3 1.2V FPGA Family: Functional Description
Their relative timing in the Low Frequency Mode is shown in
Figure 16. The CLK90, CLK180 and CLK270 outputs are
not available when operating in the High Frequency mode.
(See the description of the DLL_FREQUENCY_MODE
attribute in Table 13.) For control in finer increments than
90°, see the Phase Shifter (PS), page 26 section.
Basic Frequency Synthesis Outputs of the DLL
Component
The DLL component provides basic options for frequency
multiplication and division in addition to the more flexible
synthesis capability of the DFS component, described in a
later section. These operations result in output clock signals
with frequencies that are either a fraction (for division) or a
multiple (for multiplication) of the incoming clock frequency.
The CLK2X output produces an in-phase signal that is twice
the frequency of CLKIN. The CLK2X180 output also doubles the frequency, but is 180° out-of-phase with respect to
CLKIN. The CLKDIV output generates a clock frequency
that is a predetermined fraction of the CLKIN frequency.
The CLKDV_DIVIDE attribute determines the factor used to
divide the CLKIN frequency. The attribute can be set to various values as described in Table 13. The basic frequency
synthesis outputs are described in Table 12. Their relative
timing in the Low Frequency Mode is shown in Figure 16.
Phase:
o
o
o
90 180 270
o
0
o
o
o
90 180 270
o
0
Input Signal (30% Duty Cycle)
t
CLKIN
Output Signal - Duty Cycle is Always Corrected
CLK2X
CLK2X180
(1)
CLKDV
Output Signal - Attribute Corrects Duty Cycle
DUTY_CYCLE_CORRECTION = FALSE
CLK0
CLK90
The CLK2X and CLK2X180 outputs are not available when
operating in the High Frequency mode. (See the description
of the DLL_FREQUENCY_MODE attribute in Table 14.)
CLK180
Duty Cycle Correction of DLL Clock Outputs
CLK270
CLK2X(1),
o
0
CLKDV(2)
The
CLK2X180, and
output signals
ordinarily exhibit a 50% duty cycle – even if the incoming
CLKIN signal has a different duty cycle. Fifty-percent duty
cycle means that the High and Low times of each clock
cycle are equal. The DUTY_CYCLE_CORRECTION
attribute determines whether or not duty cycle correction is
applied to the CLK0, CLK90, CLK180 and CLK270 outputs.
If DUTY_CYCLE_CORRECTION is set to TRUE, then the
duty cycle of these four outputs is corrected to 50%. If
DUTY_CYCLE_CORRECTION is set to FALSE, then these
outputs exhibit the same duty cycle as the CLKIN signal.
Figure 16 compares the characteristics of the DLL’s output
signals to those of the CLKIN signal.
DUTY_CYCLE_CORRECTION = TRUE
CLK0
CLK90
CLK180
CLK270
DS099-2_10_031303
Notes:
1. The DLL attribute CLKDV_DIVIDE is set to 2.
Figure 16: Characteristics of the DLL Clock Outputs
1. The CLK2X output generates a 25% duty cycle clock at the same frequency as the CLKIN signal until the DLL has achieved lock.
2. The duty cycle of the CLKDV outputs may differ somewhat from 50% (i.e., the signal will be High for less than 50% of the period) when
the CLKDV_DIVIDE attribute is set to a non-integer value and the DLL is operating in the High Frequency mode.
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Spartan-3 1.2V FPGA Family: Functional Description
Digital Frequency Synthesizer (DFS)
The DFS component generates clock signals the frequency
of which is a product of the clock frequency at the CLKIN
input and a ratio of two user-determined integers. Because
of the wide range of possible output frequencies such a ratio
permits, the DFS feature provides still further flexibility than
the DLL’s basic synthesis options as described in the preceding section. The DFS component’s two dedicated outputs, CLKFX and CLKFX180, are defined in Table 15.
The signal at the CLKFX180 output is essentially an inversion of the CLKFX signal. These two outputs always exhibit
a 50% duty cycle. This is true even when the CLKIN signal
does not. These DFS clock outputs are driven at the same
time as the DLL’s seven clock outputs.
The numerator of the ratio is the integer value assigned to
the attribute CLKFX_MULTIPLY and the denominator is the
integer value assigned to the attribute CLKFX_DIVIDE.
These attributes are described in Table 14.
The output frequency (fCLKFX) can be expressed as a function of the incoming clock frequency (fCLKIN) as follows:
fCLKFX = fCLKIN*(CLKFX_MULTIPLY/CLKFX_DIVIDE) (3)
Regarding the two attributes, it is possible to assign any
combination of integer values, provided that two conditions
are met:
1. The two values fall within their corresponding ranges,
as specified in Table 14.
2. The fCLKFX frequency calculated from the above
expression accords with the DCM’s operating frequency
specifications.
For example, if CLKFX_MULTIPLY = 5 and CLKFX_DIVIDE
= 3, then the frequency of the output clock signal would be
5/3 that of the input clock signal.
DFS Frequency Modes
The DFS supports two operating modes, High Frequency
and Low Frequency, with each specified over a different
clock frequency range. The DFS_FREQUENCY_MODE
attribute chooses between the two modes. When the
attribute is set to LOW, the Low Frequency mode permits
the two DFS outputs to operate over a low-to-moderate frequency range. When the attribute is set to HIGH, the High
Frequency mode allows both these outputs to operate at the
highest possible frequencies.
DFS With or Without the DLL
The DFS component can be used with or without the DLL
component:
Without the DLL, the DFS component multiplies or divides
the CLKIN signal frequency according to the respective
CLKFX_MULTIPLY and CLKFX_DIVIDE values, generating
a clock with the new target frequency on the CLKFX and
CLKFX180 outputs. Though classified as belonging to the
DLL component, the CLKIN input is shared with the DFS
component. This case does not employ feedback loop;
therefore, it cannot correct for clock distribution delay.
With the DLL, the DFS operates as described in the preceding case, only with the additional benefit of eliminating the
clock distribution delay. In this case, a feedback loop from
the CLK0 output to the CLKFB input must be present.
The DLL and DFS components work together to achieve
this phase correction as follows: Given values for the
CLKFX_MULTIPLY and CLKFX_DIVIDE attributes, the DLL
selects the delay element for which the output clock edge
coincides with the input clock edge whenever mathematically possible. For example, when CLKFX_MULTIPLY = 5
and CLKFX_DIVIDE = 3, the input and output clock edges
will coincide every three input periods, which is equivalent in
time to five output periods.
Smaller CLKFX_MULTIPLY and CLKFX_DIVIDE values
achieve faster lock times. With no factors common to the
two attributes, alignment will occur once with every number
of cycles equal to the CLKFX_DIVIDE value. Therefore, it is
recommended that the user reduce these values by factoring
wherever
possible.
For
example,
given
CLKFX_MULTIPLY = 9 and CLKFX_DIVIDE = 6, removing
a factor of three yields CLKFX_MULTIPLY = 3 and
CLKFX_DIVIDE = 2. While both value-pairs will result in the
multiplication of clock frequency by 3/2, the latter value-pair
will enable the DLL to lock more quickly.
Table 14: DFS Attributes
Attribute
Description
Values
DFS_FREQUENCY_MODE
Chooses between High Frequency and Low Frequency modes
Low, High
CLKFX_MULTIPLY
Frequency multiplier constant
Integer from 2 to 32
CLKFX_DIVIDE
Frequency divisor constant
Integer from 1 to 32
Table 15: DFS Signals
Signal
Direction
Description
CLKFX
Output
Multiplies the CLKIN frequency by the attribute-value ratio
(CLKFX_MULTIPLY/CLKFX_DIVIDE) to generate a clock signal with a new target frequency.
CLKFX180
Output
Generates a clock signal with same frequency as CLKFX, only shifted 180° out-of-phase.
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Spartan-3 1.2V FPGA Family: Functional Description
DFS Clock Output Connections
PS Component Enabling and Mode Selection
There are two basic cases that determine how to connect
the DFS clock outputs: on-chip and off-chip, which are illustrated in Figure 15a and Figure 15c, respectively. This is
similar to what has already been described for the DLL component. See the DLL Clock Output and Feedback Connections, page 22 section.
The CLKOUT_PHASE_SHIFT attribute enables the PS
component for use in addition to selecting between two
operating modes. As described in Table 16, this attribute
has three possible values: NONE, FIXED and VARIABLE.
When CLKOUT_PHASE_SHIFT is set to NONE, the PS
component is disabled and its inputs, PSEN, PSCLK, and
PSINCDEC, must be tied to GND. The set of waveforms in
Figure 17a shows the disabled case, where the DLL maintains a zero-phase alignment of signals CLKFB and CLKIN
upon which the PS component has no effect. The PS component is enabled by setting the attribute to either the
FIXED or VARIABLE values, which select the Fixed Phase
mode and the Variable Phase mode, respectively. These
two modes are described in the sections that follow
In the on-chip case, it is possible to connect either of the
DFS’s two output clock signals through general routing
resources to the FPGA’s internal registers. Either a Global
Clock Buffer (BUFG) or a BUFGMUX affords access to the
global clock network. The optional feedback loop is formed
in this way, routing CLK0 to a global clock net, which in turn
drives the CLKFB input.
In the off-chip case, the DFS’s two output clock signals, plus
CLK0 for an optional feedback loop, can exit the FPGA
using output buffers (OBUF) to drive a clock network plus
registers on the board. The feedback loop is formed by
feeding the CLK0 signal back into the FPGA using an
IBUFG, which directly accesses the global clock network, or
an IBUF. Then, the global clock net is connected directly to
the CLKFB input.
Phase Shifter (PS)
The DCM provides two approaches to controlling the phase
of a DCM clock output signal relative to the CLKIN signal:
First, there are nine clock outputs that employ the DLL to
achieve a desired phase relationship: CLK0, CLK90,
CLK180, CLK270, CLK2X, CLK2X180, CLKDV CLKFX, and
CLKFX180. These outputs afford “coarse” phase control.
The second approach uses the PS component described in
this section to provide a still finer degree of control. The PS
component accomplishes this by introducing a "fine phase
shift" (TPS) between the CLKFB and CLKIN signals inside
the DLL component. The user can control this fine phase
shift down to a resolution of 1/256 of a CLKIN cycle or one
tap delay (DCM_TAP), whichever is greater. When in use,
the PS component shifts the phase of all nine DCM clock
output signals together. If the PS component is used
together with a DCM clock output such as the CLK90,
CLK180, CLK270, CLK2X180 and CLKFX180, then the fine
phase shift of the former gets added to the coarse phase
shift of the latter.
Determining the Fine Phase Shift
The user controls the phase shift of CLKFB relative to
CLKIN by setting and/or adjusting the value of the
PHASE_SHIFT attribute. This value must be an integer
ranging from –255 to +255. The PS component uses this
value to calculate the desired fine phase shift (TPS) as a
fraction of the CLKIN period (TCLKIN). Given values for
PHASE-SHIFT and TCLKIN, it is possible to calculate TPS as
follows:
TPS = (PHASE_SHIFT/256)*TCLKIN
(4)
Both the Fixed Phase and Variable Phase operating modes
employ this calculation. If the PHASE_SHIFT value is zero,
then CLKFB and CLKIN will be in phase, the same as when
the PS component is disabled. When the PHASE_SHIFT
value is positive, the CLKFB signal will be shifted later in
time with respect to CLKIN. If the attribute value is negative,
the CLKFB signal will be shifted earlier in time with respect
to CLKIN.
The Fixed Phase Mode
This mode fixes the desired fine phase shift to a fraction of
the TCLKIN, as determined by Equation (4) and its
user-selected PHASE_SHIFT value P. The set of waveforms in Figure 17b illustrates the relationship between
CLKFB and CLKIN in the Fixed Phase mode. In the Fixed
Phase mode, the PSEN, PSCLK and PSINCDEC inputs are
not used and must be tied to GND.
Table 16: PS Attributes
Attribute
Description
Values
CLKOUT_PHASE_SHIFT
Disables PS component or chooses between Fixed Phase
and Variable Phase modes.
NONE, FIXED, VARIABLE
PHASE_SHIFT
Determines size and direction of initial fine phase shift.
Integers from –255 to +255(1)
Notes:
1. The practical range of values will be less when TCLKIN > FINE_SHIFT_RANGE in the Fixed Phase mode, also when TCLKIN >
(FINE_SHIFT_RANGE)/2 in the Variable Phase mode. the FINE_SHIFT_RANGE represents the sum total delay of all taps.
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Spartan-3 1.2V FPGA Family: Functional Description
a. CLKOUT_PHASE_SHIFT = NONE
CLKIN
CLKFB
b. CLKOUT_PHASE_SHIFT = FIXED
CLKIN
Shift Range over all P Values:
0
–255
+255
P
* TCLKIN
256
CLKFB
c. CLKOUT_PHASE_SHIFT = VARIABLE
CLKIN
Shift Range over all P Values:
–255
+255
0
P
* TCLKIN
256
CLKFB before
Decrement
–255
Shift Range over all N Values:
0
+255
N
*T
256 CLKIN
CLKFB after
Decrement
DS099-2_11_031303
Notes:
1. P represents the integer value ranging from –255 to +255 to which the PHASE_SHIFT attribute is assigned.
2. N is an integer value ranging from –255 to +255 that represents the net phase shift effect from a series of increment and/or
decrement operations.
N = {Total number of increments} – {Total number of decrements}
A positive value for N indicates a net increment; a negative value indicates a net decrement.
Figure 17: Phase Shifter Waveforms
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Spartan-3 1.2V FPGA Family: Functional Description
Table 17: Signals for Variable Phase Mode
Signal
Direction
Description
PSEN(1)
Input
Enables PSCLK for variable phase adjustment.
PSCLK(1)
Input
Clock to synchronize phase shift adjustment.
PSINCDEC(1)
Input
Chooses between increment and decrement for phase adjustment. It is synchronized to the
PSCLK signal.
PSDONE
Output
Goes High to indicate that present phase adjustment is complete and PS component is
ready for next phase adjustment request. It is synchronized to the PSCLK signal.
Notes:
1. It is possible to program this input for either a true or inverted polarity
The Variable Phase Mode
The “Variable Phase” mode dynamically adjusts the fine
phase shift over time using three inputs to the PS component, namely PSEN, PSCLK and PSINCDEC, as defined in
Table 17.
Just following device configuration, the PS component initially determines TPS by evaluating Equation (4) for the
value assigned to the PHASE_SHIFT attribute. Then to
dynamically adjust that phase shift, use the three PS inputs
to increase or decrease the fine phase shift.
PSINCDEC is synchronized to the PSCLK clock signal,
which is enabled by asserting PSEN. It is possible to drive
the PSCLK input with the CLKIN signal or any other clock
signal. A request for phase adjustment is entered as follows:
For each PSCLK cycle that PSINCDEC is High, the PS
component adds 1/256 of a CLKIN cycle to TPS. Similarly,
for each enabled PSCLK cycle that PSINCDEC is Low, the
PS component subtracts 1/256 of a CLKIN cycle from TPS.
The phase adjustment may require as many as 100 CLKIN
cycles plus three PSCLK cycles to take effect, at which
point the output PSDONE goes High for one PSCLK cycle.
This pulse indicates that the PS component has finished the
present adjustment and is now ready for the next request.
Asserting the Reset (RST) input, returns TPS to its original
shift time, as determined by the PHASE_SHIFT attribute
value. The set of waveforms in Figure 17c illustrates the
relationship between CLKFB and CLKIN in the Variable
Phase mode.
The Status Logic Component
The Status Logic component not only reports on the state of
the DCM but also provides a means of resetting the DCM to
an initial known state. The signals associated with the Status Logic component are described in Table 18.
As a rule, the Reset (RST) input is asserted only upon configuring the device or changing the CLKIN frequency. A
DCM reset does not affect attribute values (e.g.,
CLKFX_MULTIPLY and CLKFX_DIVIDE). If not used, RST
must be tied to GND.
The eight bits of the STATUS bus are defined in Table 19.
Table 18: Status Logic Signals
Signal
Direction
Description
Input
A High resets the entire DCM to its initial power-on state. Initializes the DLL taps for a delay
of zero. Sets the LOCKED output Low. This input is asynchronous.
STATUS[7:0]
Output
The bit values on the STATUS bus provide information regarding the state of DLL and PS
operation
LOCKED
Output
Indicates that the CLKIN and CLKFB signals are in phase by going High. The two signals
are out-of-phase when Low.
RST
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Spartan-3 1.2V FPGA Family: Functional Description
Table 19: DCM STATUS Bus
Bit
0
Name
Description
Phase Shift
Overflow
A value of 1 indicates a phase shift overflow when one of two conditions occur:
• Incrementing (or decrementing) TPS beyond 255/256 of a CLKIN cycle.
•
The DLL is producing its maximum possible phase shift (i.e., all delay taps are active).(1)
1
CLKIN Activity
A value of 1 indicates that the CLKIN signal is not toggling. A value of 0 indicates toggling. This
bit functions only when the CLKFB input is connected.(2)
2
Reserved
-
3
Reserved
-
4
Reserved
-
5
Reserved
-
6
Reserved
-
7
Reserved
-
Notes:
1. The DLL phase shift with all delay taps active is specified as the parameter FINE_SHIFT_RANGE.
2. If only the DFS clock outputs are used, but none of the DLL clock outputs, this bit will not go High when the CLKIN signal stops.
Table 20: Status Attributes
Attribute
STARTUP_WAIT
Description
Values
Delays transition from configuration to user mode until lock condition is achieved. TRUE, FALSE
Stabilizing DCM Clocks Before User Mode
It is possible to delay the completion of device configuration
until after the DLL has achieved a lock condition using the
STARTUP_WAIT attribute described in Table 20. This
option ensures that the FPGA does not enter user mode —
i.e., begin functional operation — until all system clocks
generated by the DCM are stable. In order to achieve the
delay, it is necessary to set the attribute to TRUE as well as
set the BitGen option LCK_cycle to one of the six cycles
making up the Startup phase of configuration. The selected
cycle defines the point at which configuration will halt until
the LOCKED output goes High.
Global Clock Network
Spartan-3 devices have eight Global Clock inputs called
GCLK0 - GCLK7. These inputs provide access to a
low-capacitance, low-skew network that is well-suited to
carrying high-frequency signals. The Spartan-3 clock network is shown in Figure 18. GCLK0 through GCLK3 are
placed at the center of the die’s bottom edge. GCLK4
through GCLK7 are placed at the center of the die’s top
edge. It is possible to route each of the eight Global Clock
inputs to any CLB on the die.
Eight Global Clock Multiplexers (also called BUFGMUX elements) are provided that accept signals from Global Clock
inputs and route them to the internal clock network as well
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as DCMs. Four BUFGMUX elements are placed at the center of the die’s bottom edge, just above the GCLK0 - GCLK4
inputs. The remaining four BUFGMUX elements are placed
at the center of the die’s top edge, just below the GCLK4 GCLK7 inputs.
Each BUFGMUX element is a 2-to-1 multiplexer that can
receive signals from any of the four following sources:
1. One of the four Global Clock inputs on the same side of
the die — top or bottom — as the BUFGMUX element in
use.
2. Any of four nearby horizontal Double lines.
3. Any of four outputs from the DCM in the right-hand
quadrant that is on the same side of the die as the
BUFGMUX element in use.
4. Any of four outputs from the DCM in the left-hand
quadrant that is on the same side of the die as the
BUFGMUX element in use.
Sources 3 and 4 are not available on the XC3S50 die that
lacks DCMs.
Each BUFGMUX can switch incoming clock signals to two
possible destinations:
1. The vertical spine belonging to the same side of the die
— top or bottom — as the BUFGMUX element in use.
The two spines — top and bottom — each comprise
four vertical clock lines, each running from one of the
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Spartan-3 1.2V FPGA Family: Functional Description
A Global clock input is placed in a design using either a
BUFGMUX element or the BUFG (Global Clock Buffer) element. For the purpose of minimizing the dynamic power dissipation of the clock network, the Xilinx development
software automatically disables all clock line segments that
a design does not use.
BUFGMUX elements on the same side towards the
center of the die. At the center of the die, clock signals
reach the eight-line horizontal spine, which spans the
width of the die. In turn, the horizontal spine branches
out into a subsidiary clock interconnect that accesses
the CLBs.
2. The clock input of either DCM on the same side of the
die — top or bottom — as the BUFGMUX element in
use.
GCLK7
GCLK5
GCLK6
4
GCLK4
4
4 BUFGMUX
4
DCM
4
DCM
4
8
•
Top Spine
•
•
•
•
Array Dependent
•
8
8
8
Horizontal Spine
•
Bottom Spine
•
•
•
•
Array Dependent
•
4
4
4
DCM
4
4
DCM
4 BUFGMUX
GCLK2
GCLK0
GCLK3
GCLK1
DS099-2_18_070203
Figure 18: Spartan-3 Clock Network (Top View)
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Spartan-3 1.2V FPGA Family: Functional Description
Interconnect
ble lines in terms of capability: Hex lines approach the
high-frequency characteristics of Long lines at the same
time, offering greater connectivity.
Interconnect (or routing) passes signals among the various
functional elements of Spartan-3 devices. There are four
kinds of interconnect: Long lines, Hex lines, Double lines,
and Direct lines.
Double lines connect to every other CLB (see Figure 19c).
Compared to the types of lines already discussed, Double
lines provide a higher degree of flexibility when making connections.
Long lines connect to one out of every six CLBs (see
Figure 19a). Because of their low capacitance, these lines
are well-suited for carrying high-frequency signals with minimal loading effects (e.g. skew). If all eight Global Clock
Inputs are already committed and there remain additional
clock signals to be assigned, Long lines serve as a good
alternative.
Direct lines afford any CLB direct access to neighboring
CLBs (see Figure 19d). These lines are most often used to
conduct a signal from a "source" CLB to a Double, Hex, or
Long line and then from the longer interconnect back to a
Direct line accessing a "destination" CLB.
6
6
CLB
CLB
CLB
6
CLB
CLB
•
•
•
CLB
•
•
•
CLB
•
•
•
CLB
•
•
•
CLB
•
•
•
Hex lines connect one out of every three CLBs (see
Figure 19b). These lines fall between Long lines and Dou-
6
CLB
6
DS099-2_19_040103
(a) Long Line
8
CLB
CLB
CLB
CLB
CLB
CLB
CLB
DS099-2_20_040103
(b) Hex Line
CLB
CLB
CLB
CLB
CLB
CLB
CLB
CLB
CLB
2
CLB
CLB
CLB
DS099-2_21_040103
(c) Double Line
DS099-2_22_040103
(d) Direct Lines
Figure 19: Types of Interconnect
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Spartan-3 1.2V FPGA Family: Functional Description
Configuration
Spartan-3 devices are configured by loading application
specific configuration data into the internal configuration
memory. Configuration is carried out using a subset of the
device pins, some of which are "Dedicated" to one function
only, while others, indicated by the term "Dual-Purpose",
can be re-used as general-purpose User I/Os once configuration is complete.
Depending on the system design, several configuration
modes are supported, selectable via mode pins. The mode
pins M0, M1, and M2 are Dedicated pins. The mode pin settings are shown in Table 21.
Table 21: Spartan-3 Configuration Mode Pin Settings
Configuration Mode (1)
M0
M1
M2
Synchronizing Clock
Data Width
Serial DOUT (2)
Master Serial
0
0
0
CCLK Output
1
Yes
Slave Serial
1
1
1
CCLK Input
1
Yes
Master Parallel
1
1
0
CCLK Output
8
No
Slave Parallel
0
1
1
CCLK Input
8
No
JTAG
1
0
1
TCK Input
1
No
Notes:
1. The voltage levels on the M0, M1, and M2 pins select the configuration mode.
2. The daisy chain is possible only in the Serial modes when DOUT is used.
An additional pin, HSWAP_EN, is used in conjunction with
the mode pins to select whether user I/O pins have pull-ups
during configuration. By default, HSWAP_EN is tied High
(internal pull-up) which shuts off the pull-ups on the user I/O
pins during configuration. When HSWAP_EN is tied Low,
user I/Os have pull-ups during configuration. Other Dedicated pins are CCLK (the configuration clock pin), DONE,
PROG_B, and the boundary-scan pins: TDI, TDO, TMS,
and TCK. Depending on the configuration mode chosen,
CCLK can be an output generated by the FPGA, or an input
accepting an externally generated clock.
A persist option is available which can be used to force the
configuration pins to retain their configuration function even
after device configuration is complete. If the persist option is
not selected then the configuration pins with the exception
of CCLK, PROG_B, and DONE can be used as user I/O in
normal operation. The persist option does not apply to the
boundary-scan related pins. The persist feature is valuable
in applications that readback configuration data after entering the User mode.
Table 22 lists the total number of bits required to configure
each FPGA as well as the PROMs suitable for storing those
bits. See DS123: Platform Flash In-System Programmable
Configuration PROMs data sheet for more information.
The Standard Configuration Interface
Configuration signals belong to one of two different categories: Dedicated or Dual-Purpose. Which category determines which of the FPGA’s power rails supplies the signal’s
driver and, thus, helps describe the electrical at the pin.
The Dedicated configuration pins include PROG_B,
HSWAP_EN, TDI, TMS, TCK, TDO, CCLK, DONE, and
M0-M2. These pins use the VCCAUX lines for power.
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Table 22: Spartan-3 Configuration Data
Xilinx Platform Flash PROM
Device
File Sizes
Serial
Configuration
Parallel
Configuration
XC3S50
439,264
XCF01S
XCF08P
XC3S200
1,047,616
XCF01S
XCF08P
XC3S400
1,699,136
XCF02S
XCF08P
XC3S1000
3,223,488
XCF04S
XCF08P
XC3S1500
5,214,784
XCF08P
XCF08P
XC3S2000
7,673,024
XCF08P
XCF08P
XC3S4000
11,316,864
XCF16P
XCF16P
XC3S5000
13,271,936
XCF16P
XCF16P
The Dual-Purpose configuration pins comprise INIT_B,
DOUT, BUSY, RDWR_B, CS_B, and DIN/D0-D7. Each of
these pins, according to its bank placement, uses the VCCO
lines for either Bank 4 (VCCO_4) or Bank 5 (VCCO_5). All
the signals used in the serial configuration modes rely on
VCCO_4 power. Signals used in the parallel configuration
modes and Readback require from VCCO_5 as well as from
VCCO_4.
Both the Dedicated and Dual-Purpose signals described
above constitute the configuration interface. In the standard
case, this interface is 2.5V-LVCMOS-compatible. This
means that 2.5V is applied to the VCCAUX, VCCO_4, and
VCCO_5 lines (this last in the parallel or Readback case
only). One need only apply 2.5 Volts to these VCCO lines
from power-on to the end of configuration. Upon entering
the User mode, it is possible to switch to supply voltage permitting signal swings other than 2.5V.
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Spartan-3 1.2V FPGA Family: Functional Description
3.3V-Tolerant Configuration Interface
Configuration Modes
It is possible to achieve 3.3V-tolerance at the configuration
interface simply by adding a few external resistors. This
approach may prove useful when it is undesirable to switch
the VCCO_4 and VCCO_5 voltages from 2.5V to 3.3V after
configuration.
Spartan-3 supports the following five configuration modes:
•
•
•
•
•
The 3.3V-tolerance is implemented as follows (a similar
approach can be used for other supply voltage levels):
First, to power the Dual-Purpose configuration pins, apply
3.3V to the VCCO_4 and (as needed) the VCCO_5 lines.
This scales the output voltages and input thresholds associated with these pins so that they become 3.3V-compatible.
Slave Serial Mode
In Slave Serial mode, the FPGA receives configuration data
in bit-serial form from a serial PROM or other serial source
of configuration data. The FPGA on the far right of Figure 20
is set for the Slave Serial mode. The CCLK pin on the FPGA
is an input in this mode. The serial bitstream must be setup
at the DIN input pin a short time before each rising edge of
the externally generated CCLK.
Second, to power the Dedicated configuration pins, apply
2.5V to the VCCAUX lines (the same as for the standard
interface). In order to achieve 3.3V-tolerance, the Dedicated
inputs will require series resistors that limit the incoming
current to 10mA or less. The Dedicated outputs will need
pull-up resistors to ensure adequate noise margin when the
FPGA is driving a High logic level into another device’s 3.3V
receiver. Choose a power regulator or supply that can tolerate reverse current on the VCCAUX lines.
3.3V
Slave Serial mode
Master Serial mode
Slave Parallel mode
Master Parallel mode
Boundary-Scan (JTAG) mode (IEEE 1532/IEEE
1149.1)
Multiple FPGAs can be daisy-chained for configuration from
a single source. After a particular FPGA has been configured, the data for the next device is routed internally to the
DOUT pin. The data on the DOUT pin changes on the rising
edge of CCLK.
2.5V
2.5V
2.5V
1.2V
VCCO Bank 4
VCCO
VCC
VCCAUX
VCCJ
D0
DIN
Platform
Flash PROM
1.2V
VCCO Bank 4
VCCINT
DOUT
VCCAUX
VCCINT
DIN
Spartan-3
FPGA
Spartan-3
FPGA
Master
Slave
2.5V
2.5V
XCF0xS
or
XCFxxP
M0
M1
M2
All
4.7KΩ
M0
M1
M2
CE
DONE
DONE
OE/RESET
INIT_B
INIT_B
CF
CLK
PROG_B
PROG_B
CCLK
CCLK
GND
GND
GND
DS099_23_041103
Notes:
1. There are two ways to use the DONE line. First, one may set the BitGen option DriveDone to "Yes" only for the
last FPGA to be configured in the chain shown above (or for the single FPGA as may be the case). This enables
the DONE pin to drive High; thus, no pull-up resistor is necessary. DriveDone is set to "No" for the remaining
FPGAs in the chain. Second, DriveDone can be set to "No" for all FPGAs. Then all DONE lines are open-drain
and require the pull-up resistor shown in grey. In most cases, a value between 3.3KΩ to 4.7KΩ is sufficient.
However, when using DONE synchronously with a long chain of FPGAs, cumulative capacitance may
necessitate lower resistor values (e.g. down to 330Ω) in order to ensure a rise time within one clock cycle.
2. For information on how to program the FPGA using 3.3V signals and power, see 3.3V-Tolerant Configuration
Interface.
Figure 20: Connection Diagram for Master and Slave Serial Configuration
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Spartan-3 1.2V FPGA Family: Functional Description
Slave Serial mode is selected by applying <111> to the
mode pins (M0, M1, and M2). A weak pull-up on the mode
pins makes slave serial the default mode if the pins are left
unconnected.
Master Serial Mode
In Master Serial mode, the CCLK pin is an output pin. The
FPGA just to the right of the PROM in Figure 20 is set for
Master Serial mode. It is the FPGA that drives the configuration clock on the CCLK pin to a Xilinx Serial PROM which
in turn feeds bit-serial data to the DIN input. The FPGA
accepts this data on each rising CCLK edge. After the
FPGA has been loaded, the data for the next device in a
daisy-chain is presented on the DOUT pin after the rising
CCLK edge.
The interface is identical to slave serial except that an internal oscillator is used to generate the configuration clock
(CCLK). A wide range of frequencies can be selected for
CCLK which always starts at a default frequency of 6 MHz.
Configuration bits then switch CCLK to a higher frequency
for the remainder of the configuration.
Slave Parallel Mode
The Parallel modes support the fastest configuration.
Byte-wide data is written into the FPGA with a BUSY flag
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controlling the flow of data. An external source provides
8-bit-wide data, CCLK, an active-Low Chip Select (CS_B)
signal and an active-Low Write signal (RDWR_B). If BUSY
is asserted (High) by the FPGA, the data must be held until
BUSY goes Low. Data can also be read using the Slave
Parallel mode. If RDWR_B is asserted, configuration data is
read out of the FPGA as part of a readback operation.
After configuration, it is possible to use any of the Multipurpose pins (DIN/D0-D7, DOUT/BUSY, INITB, CS_B, and
RDWR_B) as User I/Os. To do this, simply set the BitGen
option Persist to No and assign the desired signals to multipurpose configuration pins using the Xilinx development
software. Alternatively, it is possible to continue using the
configuration port (e.g. all configuration pins taken together)
when operating in the User mode. This is accomplished by
setting the Persist option to Yes.
Multiple FPGAs can be configured using the Slave Parallel
mode and can be made to start-up simultaneously.
Figure 21 shows the device connections. To configure multiple devices in this way, wire the individual CCLK, Data,
RDWR_B, and BUSY pins of all the devices in parallel. The
individual devices are loaded separately by deasserting the
CS_B pin of each device in turn and writing the appropriate
data.
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Spartan-3 1.2V FPGA Family: Functional Description
D[0:7]
CCLK
RDWR_B
BUSY
2.5V
2.5V
VCCO Banks 4 & 5
1.2V
VCCO Banks 4 & 5
VCCINT
VCCAUX
VCCAUX
Spartan-3
Slave
VCCINT
Spartan-3
Slave
D[0:7]
D[0:7]
CCLK
CCLK
RDWR_B
RDWR_B
BUSY
BUSY
2.5V
CS_B
CS_B
DONE
4.7KΩ
M1
M2
M0
PROG_B
2.5V
4.7KΩ
1.2V
INIT_B
GND
2.5V
CS_B
CS_B
M1
M2
M0
PROG_B
DONE
INIT_B
GND
DONE
INIT_B
PROG_B
DS099_24_041103
Notes:
1. There are two ways to use the DONE line. First, one may set the BitGen option DriveDone to "Yes" only for the last FPGA
to be configured in the chain shown above (or for the single FPGA as may be the case). This enables the DONE pin to drive
High; thus, no pull-up resistor is necessary. DriveDone is set to "No" for the remaining FPGAs in the chain. Second,
DriveDone can be set to "No" for all FPGAs. Then all DONE lines are open-drain and require the pull-up resistor shown in
grey. In most cases, a value between 3.3KΩ to 4.7KΩ is sufficient. However, when using DONE synchronously with a long
chain of FPGAs, cumulative capacitance may necessitate lower resistor values (e.g. down to 330Ω) in order to ensure a rise
time within one clock cycle.
2. If the FPGAs use different configuration data files, configure them in sequence by first asserting the CS_B of one FPGA then
asserting the CS_B of the other FPGA.
3. For information on how to program the FPGA using 3.3V signals and power, see 3.3V-Tolerant Configuration Interface.
Figure 21: Connection Diagram for Slave Parallel Configuration
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Spartan-3 1.2V FPGA Family: Functional Description
2.5V
3.3V
2.5V
VCCO Banks 4 & 5
VCCAUX
VCCO
VCC
DATA[0:7]
D[0:7]
CCLK
XCFxxP
VCCINT
Spartan-3
Master
VCCJ
Platform Flash
PROM
1.2V
CCLK
2.5V
All
4.7KΩ
CF
PROG_B
CE
DONE
OE/RESET
INIT_B
GND
RDWR_B
CS_B
GND
DS099_25_041103
Notes:
1. There are two ways to use the DONE line. First, one may set the BitGen option DriveDone to "Yes"
only for the last FPGA to be configured in the chain shown above (or for the single FPGA as may be
the case). This enables the DONE pin to drive High; thus, no pull-up resistor is necessary. DriveDone
is set to "No" for the remaining FPGAs in the chain. Second, DriveDone can be set to "No" for all
FPGAs. Then all DONE lines are open-drain and require the pull-up resistor shown in grey. In most
cases, a value between 3.3KΩ to 4.7KΩ is sufficient. However, when using DONE synchronously
with a long chain of FPGAs, cumulative capacitance may necessitate lower resistor values (e.g.
down to 330Ω) in order to ensure a rise time within one clock cycle.
Figure 22: Connection Diagram for Master Parallel Configuration
Master Parallel Mode
Configuration Sequence
In this mode, the device is configured byte-wide on a CCLK
supplied by the FPGA. Timing is similar to the Slave Parallel
mode except that CCLK is supplied by the FPGA. The
device connections are shown in Figure 22.
The configuration of Spartan-3 devices is a three-stage process that occurs after Power-On Reset or the assertion of
PROG_B. POR occurs after the VCCINT, VCCAUX, and VCCO
Bank 4 supplies have reached their respective maximum
input threshold levels (see Table 7 in Module 3: DC and
Switching Characteristics). After POR, the three-stage
process begins.
Boundary-Scan (JTAG) Mode
In Boundary-Scan mode, dedicated pins are used for configuring the FPGA. The configuration is done entirely
through the IEEE 1149.1 Test Access Port (TAP). FPGA
configuration using the Boundary-Scan mode is compliant
with the IEEE 1149.1-1993 standard and the new IEEE
1532 standard for In-System Configurable (ISC) devices.
Configuration through the boundary-scan port is always
available, independent of the mode selection. Selecting the
Boundary-Scan mode simply turns off the other modes.
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40
First, the configuration memory is cleared. Next, configuration data is loaded into the memory, and finally, the
logic is activated by a start-up process. A flow diagram for
the configuration sequence of the Serial and Parallel modes
is shown in Figure 23. The flow diagram for the Boundary-Scan configuration sequence appears in Figure 24.
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R
Spartan-3 1.2V FPGA Family: Functional Description
Set PROG_B Low
after Power-On
Power-On
VCCINT >1V
and VCCAUX > 2V
and VCCO Bank 4 > 1V
No
Yes
Yes
Clear configuration
memory
PROG_B = Low
No
No
INIT_ B = High?
Yes
Sample mode pins
Load configuration
data frames
CRC
correct?
No
INIT_B goes Low.
Abort Start-Up
Yes
Start-Up
sequence
User mode
No
Reconfigure?
Yes
DS099_26_041103
Figure 23: Configuration Flow Diagram for the Serial and Parallel Modes
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Spartan-3 1.2V FPGA Family: Functional Description
Set PROG_B Low
after Power-On
Power-On
VCCINT >1V
and VCCAUX > 2V
and VCCO Bank 4 > 1V
No
Yes
Clear
configuration
memory
Yes
PROG_B = Low
No
No
INIT_B = High?
Yes
Sample
mode pins
(JTAG port becomes
available)
Shutdown
sequence
Load CFG_IN
instruction
Load
JShutdown
instruction
Load configuration
data frames
CRC
correct?
No
INIT_B goes Low.
Abort Start-Up
Yes
Synchronous
TAP reset
(Clock five 1's
on TMS)
Load JSTART
instruction
Start-Up
sequence
User mode
No
Reconfigure?
Yes
DS099_27_041103
Figure 24: Boundary-Scan Configuration Flow Diagram
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Spartan-3 1.2V FPGA Family: Functional Description
Configuration is automatically initiated after power-on
unless it is delayed by the user. INIT_B is an open-drain line
that the FPGA holds Low during the clearing of the configuration memory. Extending the time that the pin is Low
causes the configuration sequencer to wait. Thus, configuration is delayed by preventing entry into the phase where
data is loaded.
The configuration process can also be initiated by asserting
the PROG_B pin. The end of the memory-clearing phase is
signaled by the INIT_B pin going High. At this point, the configuration data is written to the FPGA. The FPGA holds the
Global Set/Reset (GSR) signal active throughout configuration, keeping all flip-flops on the device in a reset state. The
completion of the entire process is signaled by the DONE
pin going High.
Default Cycles
0
1
2
3
4
5
The relative timing of configuration events can be changed
via the BitGen options in the Xilinx development software. In
addition, the GTS and GWE events can be made dependent on the DONE pins of multiple devices all going High,
forcing the devices to start synchronously. The sequence
can also be paused at any stage, until lock has been
achieved on any DCM.
Readback
Start-Up Clock
Phase
The default start-up sequence, shown in Figure 25, serves
as a transition to the User mode. The default start-up
sequence is that one CCLK cycle after DONE goes High,
the Global Three-State signal (GTS) is released. This permits device outputs to which signals have been assigned to
become active. One CCLK cycle later, the Global Write
Enable (GWE) signal is released. This permits the internal
storage elements to begin changing state in response to the
design logic and the user clock.
Using Slave Parallel mode, configuration data from the
FPGA can be read back. Readback is supported only in the
Slave Parallel and Boundary-Scan modes.
6 7
Along with the configuration data, it is possible to read back
the contents of all registers, distributed SelectRAM, and
block RAM resources. This capability is used for real-time
debugging.
DONE
GTS
GSR
GWE
Sync-to-DONE
Start-Up Clock
Phase
0
1
2
3
4
5
6 7
DONE High
DONE
GTS
GSR
GWE
DS099_028_040803
Notes:
1. The BitGen option StartupClk in the Xilinx
development software selects the CCLK input,
TCK input, or a user-designated global clock input
(the GCLK0 - GCLK7 pins) for receiving the clock
signal that synchronizes Start-Up.
Figure 25: Default Start-Up Sequence
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Spartan-3 1.2V FPGA Family: Functional Description
Revision History
Date
Version No.
Description
04/11/03
1.0
Initial Xilinx release
05/19/03
1.1
Added Block RAM column, DCMs, and multipliers to XC3S50 descriptions.
07/11/03
1.2
Explained the configuration port Persist option in Slave Parallel Mode section. Updated
Figure 2 and Double-Data-Rate Transmission section to indicate that DDR clocking for the
XCS350 is the same as that for all other Spartan-3 devices. Updated description of I/O voltage
tolerance in ESD Protection section. In Table 6, changed input termination type for DCI
version of the LVCMOS standard to None. Added additional flexibility for making DLL
connections in Figure 15 and accompanying text. In the Configuration section, inserted an
explanation of how to choose power supplies for the configuration interface, including
guidelines for achieving 3.3V-tolerance.
The Spartan-3 Family Data Sheet
DS099-1, Spartan-3 1.2V FPGA Family: Introduction and Ordering Information (Module 1)
DS099-2, Spartan-3 1.2V FPGA Family: Functional Description (Module 2)
DS099-3, Spartan-3 1.2V FPGA Family: DC and Switching Characteristics (Module 3)
DS099-4, Spartan-3 1.2V FPGA Family: Pinout Descriptions (Module 4)
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040
Spartan-3 FPGA Family:
DC and Switching Characteristics
R
DS099-3 (v1.3) March 4, 2004
0
0
Advance Product Specification
DC Electrical Characteristics
In this section, some specifications may be designated as
Advance or Preliminary. These terms are defined as follows:
Advance: Initial estimates based on simulation, early characterization, and/or extrapolation from the characteristics of
other families. Values are subject to change. Use as estimates, not for production.
Preliminary: Based on characterization. Further changes
are not expected.
All parameter limits are representative of worst-case supply
voltage and junction temperature conditions. The following
applies unless otherwise noted: The parameter values published in this module apply to all Spartan-3 devices. AC and
DC characteristics are specified using the same numbers
for both commercial and industrial grades. All parameters
representing voltages are measured with respect to GND.
Some specifications list different values for one or more die
revisions. All presently available Spartan-3 devices are
classified as revision 0. Future updates to this module will
introduce further die revisions as needed.
Table 1: Absolute Maximum Ratings
Symbol
Description
Conditions
Min
Max
Units
VCCINT
Internal supply voltage
–0.5
1.32
V
VCCAUX
Auxiliary supply voltage
–0.5
3.00
V
Output driver supply voltage
–0.5
3.75
V
Input reference voltage
–0.5
VCCO + 0.5
V
–0.5
VCCO + 0.5
V
–0.5
VCCAUX + 0.5
V
VCCO < 3.0V
-
125
°C
VCCO > 3.0V
-
105
°C
-
220
°C
–65
150
°C
VCCO
VREF(2)
VIN
(2)
Voltage applied to all User I/O pins
and Dual-Purpose pins(3)
Driver in a
high-impedance state
Voltage applied to all Dedicated
pins(4)
TJ
TSOL(5)
TSTG
Junction temperature
Soldering temperature
Storage temperature
Notes:
1. Stresses beyond those listed under Absolute Maximum Ratings will cause permanent damage to the device. These are stress
ratings only; functional operation of the device at these or any other conditions beyond those listed under the Recommended
Operating Conditions is not implied. Exposure to Absolute Maximum Ratings conditions for extended periods of time adversely
affects device reliability.
2. Table 5 specifies the range of values for VCCO and VCCAUX, which are used to determine the limits of this parameter.
3. All User I/O and Dual-Purpose pins (DIN/D0, D1–D7, CS_B, RDWR_B, BUSY/DOUT, AND INIT_B) draw power from the VCCO
power rail of the associated bank.
4. All Dedicated pins (M0–M2, CCLK, PROG_B, DONE, HSWAP_EN, TCK, TDI, TDO, and TMS) draw power from the VCCAUX rail
(2.5V). For information concerning the use of 3.3V signals, see the 3.3V-Tolerant Configuration Interface section in Module 2:
Functional Description.
5. For soldering guidelines, see the information on "Packaging and Thermal Characteristics" at www.xilinx.com.
© 2003-2004 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 2: Supply Voltage Thresholds for Power-On Reset
Symbol
Description
Min
Max
Units
VCCINTT
Threshold for the VCCINT supply
0.4
1.0
V
VCCAUXT
Threshold for the VCCAUX supply
0.8
2.0
V
VCCO4T
Threshold for the VCCO Bank 4 supply
0.4
1.0
V
Notes:
1. VCCINT, VCCAUX, and VCCO supplies may be applied in any order.
2. To ensure successful power-on, VCCINT, VCCO Bank 4, and VCCAUX supplies must rise through their respective threshold-voltage
ranges with no dips at any point.
Table 3: Other Power-On Requirements
Symbol
TCCO
Description
VCCO ramp time for all eight banks
Device Revision
0
Min
Max
Units
XC3S200, XC3S400,
and XC3S1500 in the
FT and FG packages(1)
600
-
µs
All other devices
2.0
-
ms
To be
improved
-
Future
Notes:
1. This specification is based on characterization.
2. At present, there are no ramp requirements for the VCCINT and VCCAUX supplies.
Table 4: Power Voltage Levels Necessary for Preserving RAM Contents
Symbol
Description
Min
Units
VDRINT
VCCINT level required to retain RAM data
1.0
V
VDRAUX
VCCAUX level required to retain RAM data
2.0
V
Notes:
1. RAM contents include configuration data.
2. The level of the VCCO supply has no effect on data retention.
2
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 5: General Recommended Operating Conditions
Symbol
Description
Junction temperature
TJ
Commercial
Industrial
Min
Nom
Max
Units
0
-
85
°C
–40
-
100
°C
VCCINT
Internal supply voltage
1.140
1.200
1.260
V
VCCO (1)
Output driver supply voltage
1.140
-
3.450
V
VCCAUX
Auxiliary supply voltage
2.375
2.500
2.625
V
Notes:
1. The VCCO range given here spans the lowest and highest operating voltages of all supported I/O standards. The recommended
VCCO range specific to each of the single-ended I/O standards is given in Table 8, and that specific to the differential standards is
given in Table 10.
Table 6: General DC Characteristics of User I/O, Dual-Purpose, and Dedicated Pins
Symbol
Description
Test Conditions
IL
Leakage current at User
I/O, Dual-Purpose, and
Dedicated pins
Driver is in a
high-impedance state,
VIN = 0V or VCCO max,
sample-tested
Current through pull-up
resistor at User I/O,
Dual-Purpose, and
Dedicated pins
VIN =0, VCCO = 3.3V
IRPU(2)
IRPD
(2)
IREF
CIN
Current through
pull-down resistor at
User I/O, Dual-Purpose,
and Dedicated pins
VREF current per pin
Device Revision
Min
Typ
Max
Units
0
VCCO > 3.0V
–25
-
+25
µA
VCCO < 3.0V
–10
-
+10
µA
–0.84
-
–2.35
mA
VIN =0, VCCO = 3.0V
–0.69
-
–1.99
mA
VIN =0, VCCO = 2.5V
–0.47
-
–1.41
mA
VIN =0, VCCO = 1.8V
–0.21
-
–0.69
mA
VIN =0, VCCO = 1.5V
–0.13
-
–0.43
mA
VIN =0, VCCO = 1.2V
–0.06
-
–0.22
mA
VIN = VCCO
0.37
-
1.67
mA
VCCO > 3.0V
–25
-
+25
µA
VCCO < 3.0V
–10
-
+10
µA
3
-
10
pF
0
0
Input capacitance
All
Notes:
1. The numbers in this table are based on the conditions set forth in Table 5.
2. This parameter is based on characterization.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 7: Quiescent Supply Current Characteristics
Commercial
Symbol
ICCINTQ
ICCOQ
ICCAUXQ
Description
Quiescent VCCINT supply
current
Quiescent VCCO supply current
Quiescent VCCAUX supply
current
Device
Typ
Max
Industrial
Typ
Max
Units
XC3S50
10.0
mA
XC3S200
20.0
mA
XC3S400
35.0
mA
XC3S1000
65.0
mA
XC3S1500
mA
XC3S2000
mA
XC3S4000
mA
XC3S5000
mA
XC3S50
1.5
mA
XC3S200
1.5
mA
XC3S400
1.5
mA
XC3S1000
1.5
mA
XC3S1500
mA
XC3S2000
mA
XC3S4000
mA
XC3S5000
mA
XC3S50
7.0
mA
XC3S200
15.0
mA
XC3S400
20.0
mA
XC3S1000
25.0
mA
XC3S1500
mA
XC3S2000
mA
XC3S4000
mA
XC3S5000
mA
Notes:
1. The numbers in this table are based on the conditions set forth in Table 5. Quiescent supply current is measured with all I/O drivers
in a high-impedance state and with all pull-up/pull-down resistors at the I/O pads disabled. For typical values, the ambient
temperature (TA) is 25 °C with VCCINT = 1.2V, VCCO = 2.5V, and VCCAUX = 2.5V. The FPGA is programmed with a "blank"
configuration data file (i.e., a design with no functional elements instantiated).
2. There are two recommended ways to estimate the total power consumption (quiescent plus dynamic) for a specific design: a) The
Spartan-3 Web Power Tool at http://www.xilinx.com/ise/power_tools provides quick, approximate, typical estimates, and does not
require a netlist of the design. b) XPower, part of the Xilinx development software, takes a netlist as input to provide more accurate
maximum and typical estimates.
4
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 8: Recommended Operating Conditions for User I/Os Using Single-Ended Standards
VCCO
Signal Standard
VREF
VIL
VIH
Min (V)
Nom (V)
Max (V)
Min (V)
Nom (V)
Max (V)
Max (V)
Min (V)
-
-
-
0.74
0.8
0.86
VREF - 0.05
VREF + 0.05
GTL_DCI
-
1.2
-
0.74
0.8
0.86
VREF - 0.05
VREF + 0.05
GTLP(2)
-
-
-
0.88
1
1.12
VREF - 0.1
VREF + 0.1
GTL(2)
-
1.5
-
0.88
1
1.12
VREF - 0.1
VREF + 0.1
HSTL_I, HSTL_I_DCI
1.4
1.5
1.6
0.68
0.75
0.9
VREF - 0.1
VREF + 0.1
HSTL_III,
HSTL_III_DCI
1.4
1.5
1.6
0.68
0.9
0.9
VREF - 0.1
VREF + 0.1
HSTL_I_18,
HSTL_I_DCI_18
1.7
1.8
1.9
-
0.9
-
VREF - 0.1
VREF + 0.1
HSTL_II_18,
HSTL_II_DCI_18
1.7
1.8
1.9
-
0.9
-
VREF - 0.1
VREF + 0.1
HSTL_III_18,
HSTL_III_DCI_18
1.7
1.8
1.9
-
1.1
-
VREF - 0.1
VREF + 0.1
LVCMOS12(3)
1.14
1.2
1.3
-
-
-
0.20VCCO
0.70VCCO
LVCMOS15,
LVDCI_15,
LVDCI_DV2_15(3)
1.4
1.5
1.6
-
-
-
0.20VCCO
0.70VCCO
LVCMOS18,
LVDCI_18,
LVDCI_DV2_18(3)
1.7
1.8
1.9
-
-
-
0.20VCCO
0.70VCCO
LVCMOS25(4),
LVDCI_25,
LVDCI_DV2_25(3)
2.3
2.5
2.7
-
-
-
0.7
1.7
LVCMOS33,
LVDCI_33,
LVDCI_DV2_33(3)
3.0
3.3
3.45
-
-
-
0.8
2.0
LVTTL
3.0
3.3
3.45
-
-
-
0.8
2.0
GTLP_DCI
PCI33_3
-
3.0
-
-
-
-
0.30VCCO
0.50VCCO
SSTL18_I,
SSTL18_I_DCI
1.65
1.8
1.95
0.825
0.9
0.975
VREF - 0.125
VREF + 0.125
SSTL2_I,
SSTL2_I_DCI
2.3
2.5
2.7
1.15
1.25
1.35
VREF - 0.15
VREF + 0.15
SSTL2_II,
SSTL2_II_DCI
2.3
2.5
2.7
1.15
1.25
1.35
VREF - 0.15
VREF + 0.15
Notes:
1. Descriptions of the symbols used in this table are as follows:
VCCO -- the supply voltage for output drivers as well as LVCMOS, LVTTL, and PCI inputs
VREF -- the reference voltage for setting the input switching threshold
VIL -- the input voltage that indicates a Low logic level
VIH -- the input voltage that indicates a High logic level
2. Because the GTL and GTLP standards employ open-drain output buffers, VCCO lines do not supply current to the I/O circuit, rather
this current is provided using an external pull-up resistor connected from the I/O pin to a termination voltage (VTT). Nevertheless, the
voltage applied to the associated VCCO lines must always be at or above VTT and I/O pad voltages.
3. There is approximately 100 mV of hysteresis on inputs using any LVCMOS standard.
4. All Dedicated pins (M0-M2, CCLK, PROG_B, DONE, HSWAP_EN, TCK, TDI, TDO, and TMS) use the LVCMOS25 standard and draw
power from the VCCAUX rail (2.5V). The Dual-Purpose configuration pins (DIN/D0, D1-D7, CS_B, RDWR_B, BUSY/DOUT, and
INIT_B) use the LVCMOS25 standard before the User mode. For these pins, apply 2.5V to the VCCO Bank 4 and VCCO Bank 5 rails
at power-on as well as throughout configuration. For information concerning the use of 3.3V signals, see the 3.3V-Tolerant
Configuration Interface section in Module 2: Functional Description.
5. The global clock inputs have the following bank associations: GCLK0 and GCLK1 with Bank 4, GCLK2 and GCLK3 with Bank 5,
GCLK4 and GCLK5 with Bank 1, and GCLK6 and GCLK7 with Bank 0. The signal standards assigned to the Global Clock Lines (and
I/Os) of a given bank determine the VCCO voltage for that bank.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 9: DC Characteristics of User I/Os Using Single-Ended Standards
Signal Standard and
Current Drive Attribute
(mA)
GTL
GTL_DCI
GTLP
GTLP_DCI
HSTL_I
HSTL_I_DCI
HSTL_III
HSTL_III_DCI
HSTL_I_18
HSTL_I_DCI_18
HSTL_II_18
(mA)
(mA)
Max (V)
Min (V)
0.4
-
0.6
-
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
0.4
VCCO - 0.4
32
-
Note 3
Note 3
36
-
Note 3
Note 3
8
–8
Note 3
Note 3
24
–8
Note 3
Note 3
8
–8
Note 3
Note 3
–8
Note 3
Note 3
2
2
–2
4
4
–4
6
6
–6
2
2
–2
4
4
–4
6
6
–6
8
8
–8
12
–12
Note 3
Note 3
2
2
–2
4
4
–4
6
6
–6
8
8
–8
12
12
–12
16
16
–16
Note 3
Note 3
2
2
–2
4
4
–4
6
6
–6
8
8
–8
12
12
–12
16
16
–16
24
24
–24
Note 3
Note 3
LVDCI_18,
LVDCI_DV2_18
6
VOH
24
12
LVDCI_25,
LVDCI_DV2_25
VOL
–16
LVDCI_15,
LVDCI_DV2_15
LVCMOS25(4,5)
IOH
Note 3
HSTL_III_DCI_18
LVCMOS18(4)
IOL
16
HSTL_III_18
LVCMOS15(4)
Logic Level Characteristics
Note 3
HSTL_II_DCI_18
LVCMOS12(4)
Test Conditions
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 9: DC Characteristics of User I/Os Using Single-Ended Standards (Continued)
Signal Standard and
Current Drive Attribute
(mA)
LVCMOS33(4)
Logic Level Characteristics
IOL
IOH
VOL
VOH
(mA)
(mA)
Max (V)
Min (V)
2
2
–2
0.4
VCCO - 0.4
4
4
–4
6
6
–6
8
8
–8
12
12
–12
16
16
–16
24
24
–24
Note 3
Note 3
2
2
–2
0.4
2.4
4
4
–4
6
6
–6
8
8
–8
12
12
–12
16
16
–16
24
24
–24
Note 6
Note 6
0.10VCCO
0.90VCCO
VTT - 0.475
VTT + 0.475
VTT - 0.61
VTT + 0.61
VTT - 0.80
VTT + 0.80
LVDCI_33,
LVDCI_DV2_33
LVTTL(4)
Test Conditions
PCI33_3
SSTL18_I
SSTL18_I_DCI
SSTL2_I
SSTL2_I_DCI
SSTL2_II
SSTL2_II_DCI
6.7
–6.7
Note 3
Note 3
7.5
–7.5
Note 3
Note 3
15
–15
Note 3
Note 3
Notes:
1. The numbers in this table are based on the conditions set forth in Table 5 and Table 8.
2. Descriptions of the symbols used in this table are as follows:
IOL -- the output current condition under which VOL is tested
IOH -- the output current condition under which VOH is tested
VOL -- the output voltage that indicates a Low logic level
VOH -- the output voltage that indicates a High logic level
VIL -- the input voltage that indicates a Low logic level
VIH -- the input voltage that indicates a High logic level
VCCO -- the supply voltage for output drivers as well as LVCMOS, LVTTL, and PCI inputs
VREF -- the reference voltage for setting the input switching threshold
VTT -- the voltage applied to a resistor termination
3. Tested according to the standard’s relevant specifications.
4. For the LVCMOS and LVTTL standards: the same VOL and VOH limits apply for both the Fast and Slow slew attributes.
5. All Dedicated output pins (CCLK, DONE, and TDO) as well as Dual-Purpose totem-pole output pins (D0-D7 and BUSY/DOUT)
exhibit the characteristics of LVCMOS25 with 12 mA drive and Fast slew rate. For information concerning the use of 3.3V signals,
see the 3.3V-Tolerant Configuration Interface section in Module 2: Functional Description.
6. Tested according to the relevant PCI specifications.
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Spartan-3 FPGA Family: DC and Switching Characteristics
VINP
Internal
Logic
VINN
VINN
VID
50%
VINP
Differential
I/O Pair Pins
P
N
VICM
GND level
VICM = Input common mode voltage =
VINP + VINN
2
VID = Differential input voltage = VINP - VINN
DS099-3_01_012304
Figure 1: Differential Input Voltages
Table 10: Recommended Operating Conditions for User I/Os Using Differential Signal Standards
VCCO(1)
VID
VICM
VIH
VIL
Min
(V)
Nom
(V)
Max
(V)
Min
(mV)
Nom
(mV)
Max
(mV)
Min
(V)
Nom
(V)
Max
(V)
Min
(V)
Max
(V)
Min
(V)
Max
(V)
LDT_25
2.375
2.50
2.625
200
600
1000
0.44
0.60
0.78
-
-
-
-
LVDS_25,
LVDS_25_DCI
2.375
2.50
2.625
100
350
600
0.30
1.25
2.20
-
-
-
-
BLVDS_25
2.375
2.50
2.625
-
350
-
-
1.25
-
-
-
-
-
LVDSEXT_25,
LVDSEXT_25_DCI
2.375
2.50
2.625
100
540
1000
0.30
1.20
2.20
-
-
-
-
ULVDS_25
2.375
2.50
2.625
200
600
1000
0.44
0.60
0.78
-
-
-
-
LVPECL_25
2.375
2.50
2.625
100
-
-
-
-
-
0.8
2.0
0.5
1.7
RSDS_25
2.375
2.50
2.625
100
200
-
-
1.20
-
-
-
-
-
Signal Standard
Notes:
1. VCCO only supplies differential output drivers, not input circuits.
2. VREF inputs are not used for any of the differential I/O standards.
3. VID is a differential measurement.
8
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Spartan-3 FPGA Family: DC and Switching Characteristics
VOUTP
Internal
Logic
Differential
I/O Pair Pins
P
N
VOUTN
VOH
VOUTN
VOD
50%
VOUTP
VOL
VOCM
GND level
VOCM = Output common mode voltage =
VOUTP + VOUTN
2
VOD = Output differential voltage = VOUTP - VOUTN
VOH = Output voltage indicating a High logic level
VOL = Output voltage indicating a Low logic level
DS099-3_02_012304
Figure 2: Differential Output Voltages
Table 11: DC Characteristics of User I/Os Using Differential Signal Standards
∆VOD
VOD
∆VOCM
VOCM
VOH
VOL
Device
Revision
Min
(mV)
Typ
(mV)
Max
(mV)
Min
(mV)
Max
(mV)
Min
(V)
Typ
(V)
Max
(V)
Min
(mV)
Max
(mV)
Min
(V)
Max
(V)
Min
(V)
Max
(V)
LDT_25
All(3)
430(4)
600
670
–15
15
0.495
0.600
0.715
–15
15
-
-
-
-
LVDS_25
0(3)
100
-
600
-
-
0.80
-
1.6
-
-
-
-
-
-
Future
250
-
400
-
-
1.125
-
1.375
-
-
1.00
1.475
0.925
1.38
BLVDS_25
All
250
350
450
-
-
-
1.20
-
-
-
-
-
-
-
LVDSEXT_25
0(3)
100
-
600
-
-
0.80
-
1.6
-
-
-
-
-
-
Future
330
-
700
-
-
1.125
-
1.375
-
-
-
1.700
0.705
-
All(3)
430
600
670
-
-
0.495
0.600
0.715
-
-
-
-
-
-
LVPECL_25(7)
All
-
-
-
-
-
-
-
-
-
-
1.35
1.745
0.565
1.005
RSDS_25
0(3)
100
-
600
-
-
0.80
-
1.6
-
-
-
-
-
-
Future
100
-
400
-
-
1.1
-
1.4
-
-
-
-
-
-
Signal Standard
ULVDS_25
Notes:
1. The numbers in this table are based on the conditions set forth in Table 5 and Table 10.
2. VOD, ∆VOD, and ∆VOCM are differential measurements.
3. For this standard, to ensure that the FPGA’s output pair meets specifications, it is necessary to set the LVDSBIAS option in the BitGen utility, part of
the Xilinx development software. See XAPP751. The option settings for LVDS_25, LVDSEXT_25, and RSDS_25 are different from those for LDT_25
and ULVDS_25.
4. This value must be compatible with the receiver to which the FPGA’s output pair is connected.
5. Output voltage measurements for all differential standards are made with a termination resistor (RT) of 100Ω across the N and P pins of the differential
signal pair.
6. At any given time, only one differential standard may be assigned to each bank.
7. Each LVPECL output-pair requires three external resistors: a 70Ω resistor in series with each output followed by a 240Ω shunt resistor. These are in
addition to the external 100Ω termination resistor at the receiver side. See Figure 3.
70Ω
240Ω
100Ω
70Ω
ds099-3_08_020304
Figure 3: External Terminations for LVPECL
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Spartan-3 FPGA Family: DC and Switching Characteristics
Switching Characteristics
All Spartan-3 devices are available in two speed grades: –4
and the higher performance –5. Switching characteristics in
this document may be designated as Advance, Preliminary,
or Production. Each category is defined as follows:
Advance: These specifications are based on simulations
only and are typically available soon after establishing
FPGA specifications. Although speed grades with this designation are considered relatively stable and conservative,
some under-reporting might still occur. All –5 grade numbers are engineering targets: characterization is still in
progress.
Preliminary: These specifications are based on complete
early silicon characterization. Devices and speed grades
with this designation are intended to give a better indication
of the expected performance of production silicon. The
probability of under-reporting preliminary delays is greatly
reduced compared to Advance data.
Production: These specifications are approved once
enough production silicon of a particular device family member has been characterized to provide full correlation
10
between speed files and devices over numerous production
lots. There is no under-reporting of delays, and customers
receive formal notification of any subsequent changes. Typically, the slowest speed grades transition to Production
before faster speed grades.
All specified limits are representative of worst-case supply
voltage and junction temperature conditions. Unless otherwise noted, the following applies: Parameter values apply to
all Spartan-3 devices. All parameters representing voltages
are measured with respect to GND.
Timing parameters and their representative values are
selected for inclusion below either because they are important as general design requirements or they indicate fundamental device performance characteristics. The Spartan-3
speed files (V1.29), part of the Xilinx Development Software, are the original source for many but not all of the values. For more complete, more precise, and worst-case
data, use the values reported by the Xilinx static timing analyzer (TRACE in the Xilinx development software) and
back-annotated to the simulation netlist.
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Spartan-3 FPGA Family: DC and Switching Characteristics
I/O Timing
Table 12: Pin-to-Pin Clock-to-Output Times for the IOB Output Path
Speed Grade
Symbol
Description
Clock-to-Output Times
TICKOFDCM
When reading from the
Output Flip-Flop (OFF), the
time from the active
transition on the Global
Clock pin to data appearing
at the Output pin. The DCM
is in use.
TICKOF
When reading from OFF, the
time from the active
transition on the Global
Clock pin to data appearing
at the Output pin. The DCM
is not in use.
Conditions
LVCMOS25(2), 12mA
output drive, Fast slew
rate, with DCM(3)
LVCMOS25(2),
12mA
output drive, Fast slew
rate, without DCM
-5
-4
Max
Max
Units
XC3S50
2.59
ns
XC3S200
2.59
ns
XC3S400
2.59
ns
XC3S1000
2.59
ns
XC3S1500
2.60
ns
XC3S2000
2.60
ns
XC3S4000
2.60
ns
XC3S5000
2.60
ns
XC3S50
5.37
ns
XC3S200
5.39
ns
XC3S400
5.42
ns
XC3S1000
5.51
ns
XC3S1500
5.65
ns
XC3S2000
5.83
ns
XC3S4000
5.95
ns
XC3S5000
6.19
ns
Device
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set
forth in Table 5 and Table 8.
2. This clock-to-output time requires adjustment whenever a signal standard other than LVCMOS25 is assigned to the Global Clock
Input or a standard other than LVCMOS25 with 12 mA drive and Fast slew rate is assigned to the data Output. If the former is true,
add the appropriate Input adjustment from Table 16. If the latter is true, add the appropriate Output adjustment from Table 19.
3. DCM output jitter is included in all measurements.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 13: Pin-to-Pin Setup and Hold Times for the IOB Input Path
Symbol
Description
Conditions
Device
Speed Grade
-5
-4
Min
Min
Units
Setup Times
TPSDCM
When writing to the Input
Flip-Flop (IFF), the time
from the setup of data at
the Input pin to the active
transition at a Global
Clock pin. The DCM is in
use.
LVCMOS25(2),
IOBDELAY = NONE(4),
with DCM(5)
XC3S50
XC3S200
XC3S400
XC3S1000
XC3S1500
XC3S2000
XC3S4000
XC3S5000
TPSFD
When writing to IFF, the
time from the setup of
data at the Input pin to
an active transition at the
Global Clock pin. The
DCM is not in use.
LVCMOS25(2),
IOBDELAY = NONE(4),
without DCM
XC3S50
XC3S200
XC3S400
XC3S1000
XC3S1500
XC3S2000
XC3S4000
XC3S5000
2.72
2.72
2.74
2.76
2.86
2.98
3.06
3.23
2.43
3.53
3.52
3.77
4.15
4.34
4.53
4.90
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
–1.81
–1.81
–1.81
–1.81
–1.81
–1.81
–1.80
–1.80
–1.03
–1.89
–1.87
–2.01
–2.20
–2.20
–2.24
–2.32
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Hold Times
TPHDCM
When writing to IFF, the
time from the active
transition at the Global
Clock pin to the point
when data must be held
at the Input pin. The
DCM is in use.
LVCMOS25(3),
IOBDELAY = NONE(4),
with DCM(5)
XC3S50
XC3S200
XC3S400
XC3S1000
XC3S1500
XC3S2000
XC3S4000
XC3S5000
TPHFD
When writing to IFF, the
time from the active
transition at the Global
Clock pin to the point
when data must be held
at the Input pin. The
DCM is not in use.
LVCMOS25(3),
XC3S50
IOBDELAY = NONE(4),
without DCM
XC3S200
XC3S400
XC3S1000
XC3S1500
XC3S2000
XC3S4000
XC3S5000
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set
forth in Table 5 and Table 8.
2. This setup time requires adjustment whenever a signal standard other than LVCMOS25 is assigned to the Global Clock Input or the
data Input. If this is true of the Global Clock Input, subtract the appropriate adjustment from Table 16. If this is true of the data Input,
add the appropriate input adjustment from the same table.
3. This hold time requires adjustment whenever a signal standard other than LVCMOS25 is assigned to the Global Clock Input or the
data Input. If this is true of the Global Clock Input, add the appropriate Input adjustment from Table 16. If this is true of the data Input,
subtract the appropriate Input adjustment from the same table. When the hold time is negative, it is possible to change the data
before the clock’s active edge.
4. All numbers measured with no programmed input delay.
5. DCM output jitter is included in all measurements.
12
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 14: Setup and Hold Times for the IOB Input Path
Speed Grade
Symbol
Device
-5
-4
Min
Min
Units
Description
Conditions
TIOPICK
Time from the setup of data
at the Input pin to the active
transition at the ICLK input
of the Input Flip-Flop (IFF).
No input delay is
programmed.
LVCMOS25(2),
IOBDELAY = NONE
All
1.15
1.32
ns
TIOPICKD
Time from the setup of data
at the Input pin to the active
transition at the IFF’s ICLK
input. The input delay is
programmed.
LVCMOS25(2),
IOBDELAY = IFD
XC3S50
3.26
3.75
ns
XC3S200
3.89
4.47
ns
XC3S400
3.89
4.47
ns
XC3S1000
4.15
4.77
ns
XC3S1500
4.32
4.97
ns
XC3S2000
4.50
5.17
ns
XC3S4000
4.67
5.37
ns
XC3S5000
5.02
5.77
ns
Setup Times
Hold Times
TIOICKP
Time from the active
transition at the IFF’s ICLK
input to the point where
data must be held at the
Input pin. No input delay is
programmed.
LVCMOS25(3),
IOBDELAY = NONE
All
–0.66
ns
TIOICKPD
Time from the active
transition at the IFF’s ICLK
input to the point where
data must be held at the
Input pin. The input delay is
programmed.
LVCMOS25(3),
IOBDELAY = IFD
XC3S50
–2.36
ns
XC3S200
–2.87
ns
XC3S400
–2.87
ns
XC3S1000
–3.08
ns
XC3S1500
–3.22
ns
XC3S2000
–3.36
ns
XC3S4000
–3.50
ns
XC3S5000
–3.78
ns
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set
forth in Table 5 and Table 8.
2. This setup time requires adjustment whenever a signal standard other than LVCMOS25 is assigned to the data Input. If this is true,
add the appropriate Input adjustment from Table 16.
3. These hold times require adjustment whenever a signal standard other than LVCMOS25 is assigned to the data Input. If this is true,
subtract the appropriate Input adjustment from Table 16. When the hold time is negative, it is possible to change the data before the
clock’s active edge.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 15: Propagation Times for the IOB Input Path
Speed Grade
Symbol
Device
-5
-4
Max
Max
Units
Description
Conditions
TIOPI
The time it takes for data
to travel from the Input
pin to the IOB’s I output
with no input delay
programmed
LVCMOS25(2),
IOBDELAY = NONE
All
1.05
1.20
ns
TIOPID
The time it takes for data
to travel from the Input
pin to the I output with the
Input delay programmed
LVCMOS25(2),
IOBDELAY = IFD
XC3S50
3.16
3.63
ns
XC3S200
3.79
4.35
ns
XC3S400
3.79
4.35
ns
XC3S1000
4.05
4.65
ns
XC3S1500
4.22
4.85
ns
XC3S2000
4.40
5.05
ns
XC3S4000
4.57
5.25
ns
XC3S5000
4.92
5.65
ns
Propagation Times
TIOPLI
The time it takes for data
to travel from the Input
pin through the IFF latch
to the I output with no
input delay programmed
LVCMOS25(2),
IOBDELAY = NONE
All
1.55
1.78
ns
TIOPLID
The time it takes for data
to travel from the Input
pin through the IFF latch
to the I output with the
input delay programmed
LVCMOS25(2),
IOBDELAY = IFD
XC3S50
3.66
4.21
ns
XC3S200
4.29
4.93
ns
XC3S400
4.29
4.93
ns
XC3S1000
4.55
5.23
ns
XC3S1500
4.73
5.43
ns
XC3S2000
4.90
5.63
ns
XC3S4000
5.07
5.83
ns
XC3S5000
5.42
6.23
ns
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set forth
in Table 5 and Table 8.
2. This propagation time requires adjustment whenever a signal standard other than LVCMOS25 is assigned to the data Input. When
this is true, add the appropriate Input adjustment from Table 16.
14
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 16: Input Timing Adjustments for IOB (Continued)
Table 16: Input Timing Adjustments for IOB
Add the
Adjustment Below
Add the
Adjustment Below
Convert Input Time from
LVCMOS25 to the
Following Signal Standard
Speed Grade
-5
-4
Units
Single-Ended Standards
Convert Input Time from
LVCMOS25 to the
Following Signal Standard
Speed Grade
-5
-4
Units
PCI33_3
0.32
0.32
ns
GTL, GTL_DCI
–0.37
–0.37
ns
SSTL18_I, SSTL18_I_DCI
–0.17
–0.17
ns
GTLP, GTLP_DCI
–0.37
–0.37
ns
SSTL2_I, SSTL2_I_DCI
–0.19
–0.19
ns
HSTL_I, HSTL_I_DCI
–0.18
–0.18
ns
SSTL2_II, SSTL2_II_DCI
–0.21
–0.21
ns
HSTL_III, HSTL_III_DCI
–0.19
–0.19
ns
Differential Standards
HSTL_I_18,
HSTL_I_DCI_18
–0.26
–0.26
ns
LDT_25
0.04
0.04
ns
LVDS_25, LVDS_25_DCI
0.06
0.06
ns
HSTL_II_18,
HSTL_II_DCI_18
–0.26
–0.26
ns
BLVDS_25
ns
HSTL_III_18,
HSTL_III_DCI_18
–0.20
–0.20
ns
LVDSEXT_25,
LVDSEXT_25_DCI
ns
LVCMOS12
0.40
0.40
ns
LVCMOS15, LVDCI_15,
LVDCI_DV2_15
0.47
0.47
ns
LVCMOS18, LVDCI_18,
LVDCI_DV2_18
0.30
0.30
ns
LVCMOS25, LVDCI_25,
LVDCI_DV2_25
0
0
ns
LVCMOS33, LVDCI_33,
LVDCI_DV2_33
0.09
0.09
ns
LVTTL
–0.31
–0.31
ns
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ULVDS_25
–0.05
–0.05
ns
LVPECL_25
ns
RSDS_25
ns
Notes:
1. The numbers in this table are tested using the methodology
presented in Table 20 and are based on the operating
conditions set forth in Table 5, Table 8, and Table 10.
2. These adjustments are used to convert input path times
originally specified for the LVCMOS25 standard to times that
correspond to other signal standards.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 17: Timing for the IOB Output Path
Speed Grade
Symbol
Description
-5
-4
Max
Max
Units
LVCMOS25(2), 12mA
output drive, Fast slew
rate
3.64
4.18
ns
LVCMOS25(2), 12mA
output drive, Fast slew
rate
2.97
3.42
ns
3.41
3.92
ns
4.44
5.10
ns
8.07
9.28
ns
Conditions
Clock-to-Output Times
TIOCKP
When reading from the
Output Flip-Flop (OFF), the
time from the active transition
at the OTCLK input to data
appearing at the Output pin
Propagation Times
TIOOP
The time it takes for data to
travel from the IOB’s O input
to the Output pin
TIOOLP
The time it takes for data to
travel from the O input
through the OFF latch to the
Output pin
Set/Reset Times
TIOSRP
Time from asserting the
OFF’s SR input to
setting/resetting data at the
Output pin
TIOGSRQ
Time from asserting the
Global Set Reset (GSR) net
to setting/resetting data at
the Output pin
LVCMOS25(2), 12mA
output drive, Fast slew
rate
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set
forth in Table 5 and Table 8.
2. This time requires adjustment whenever a signal standard other than LVCMOS25 with 12 mA drive and Fast slew rate is assigned
to the data Output. When this is true, add the appropriate Output adjustment from Table 19.
16
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 18: Timing for the IOB Three-State Path
Speed Grade
Symbol
Description
Conditions
-5
-4
Max
Max
Units
2.32
2.66
ns
3.78
4.34
ns
Synchronous Output Enable/Disable Times
TIOCKHZ
Time from the active transition at
the OTCLK input of the
Three-state Flip-Flop (TFF) to
when the Output pin enters the
high-impedance state
TIOCKON(2)
Time from the active transition at
TFF’s OTCLK input to when the
Output pin drives valid data
LVCMOS25, 12mA
output drive, Fast
slew rate
Asynchronous Output Enable/Disable Times
Time from asserting the Global
Three State net (GTS) net to
when the Output pin enters the
high-impedance state
LVCMOS25, 12mA
output drive, Fast
slew rate
7.03
8.08
ns
TIOSRHZ
Time from asserting TFF’s SR
input to when the Output pin
enters a high-impedance state
LVCMOS25, 12mA
output drive, Fast
slew rate
3.28
3.77
ns
TIOSRON(2)
Time from asserting TFF’s SR
input at TFF to when the Output
pin drives valid data
4.75
5.45
ns
TGTS
Set/Reset Times
Notes:
1. The numbers in this table are tested using the methodology presented in Table 20 and are based on the operating conditions set
forth in Table 5 and Table 8.
2. This time requires adjustment whenever a signal standard other than LVCMOS25 with 12 mA drive and Fast slew rate is assigned
to the data Output. When this is true, add the appropriate Output adjustment from Table 19.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 19: Output Timing Adjustments for IOB (Continued)
Table 19: Output Timing Adjustments for IOB
Convert Output Time from
LVCMOS25 with 12mA Drive and
Fast Slew Rate to the Following
Signal Standard
Add the
Adjustment
Below
Speed Grade
-5
-4
Units
Single-Ended Standards
Add the
Adjustment
Below
Convert Output Time from
LVCMOS25 with 12mA Drive and
Fast Slew Rate to the Following
Signal Standard
Speed Grade
-5
-4
Units
LVCMOS18
2 mA
4.31
4.31
ns
Slow
GTL
–0.18
–0.18
ns
4 mA
2.69
2.69
ns
GTL_DCI
–0.15
–0.15
ns
6 mA
2.23
2.23
ns
GTLP
–0.15
–0.15
ns
8 mA
1.83
1.83
ns
GTLP_DCI
–0.13
–0.13
ns
12 mA
1.97
1.97
ns
HSTL_I
0.08
0.08
ns
16 mA
1.62
1.62
ns
HSTL_I_DCI
0.07
0.07
ns
2 mA
2.07
2.07
ns
HSTL_III
–0.05
–0.05
ns
4 mA
0.90
0.90
ns
HSTL_III_DCI
–0.05
–0.05
ns
6 mA
0.77
0.77
ns
HSTL_I_18
0.14
0.14
ns
8 mA
0.61
0.61
ns
0
0
ns
12 mA
0.56
0.56
ns
HSTL_II_18
–0.13
–0.13
ns
16 mA
0.50
0.50
ns
HSTL_II_DCI_18
0.31
0.31
ns
LVDCI_18
0.72
0.72
ns
HSTL_III_18
–0.02
–0.02
ns
LVDCI_DV2_18
0.58
0.58
ns
HSTL_III_DCI_18
–0.03
–0.03
ns
LVCMOS25
2 mA
5.11
5.11
ns
2 mA
6.47
6.47
ns
4 mA
3.17
3.17
ns
4 mA
6.70
6.70
ns
6 mA
2.53
2.53
ns
6 mA
5.60
5.60
ns
8 mA
2.21
2.21
ns
2 mA
3.04
3.04
ns
12 mA
1.79
1.79
ns
4 mA
2.25
2.25
ns
16 mA
1.77
1.77
ns
6 mA
2.10
2.10
ns
24 mA
1.53
1.53
ns
2 mA
3.95
3.95
ns
2 mA
2.30
2.30
ns
4 mA
3.49
3.49
ns
4 mA
0.87
0.87
ns
6 mA
2.85
2.85
ns
6 mA
0.30
0.30
ns
8 mA
3.44
3.44
ns
8 mA
0.21
0.21
ns
12 mA
2.82
2.82
ns
12 mA
0
0
ns
2 mA
2.29
2.29
ns
16 mA
0.11
0.11
ns
4 mA
1.37
1.37
ns
24 mA
0.04
0.04
ns
6 mA
1.15
1.15
ns
LVDCI_25
0.19
0.19
ns
8 mA
1.13
1.13
ns
LVDCI_DV2_25
0.10
0.10
ns
12 mA
1.00
1.00
ns
LVDCI_15
1.34
1.34
ns
LVDCI_DV2_15
1.14
1.14
ns
HSTL_I_DCI_18
LVCMOS12
Slow
Fast
LVCMOS15
Slow
Fast
18
Fast
Slow
Fast
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 19: Output Timing Adjustments for IOB (Continued)
Add the
Adjustment
Below
Convert Output Time from
LVCMOS25 with 12mA Drive and
Fast Slew Rate to the Following
Signal Standard
Speed Grade
-5
-4
Units
LVCMOS33
2 mA
6.22
6.22
4 mA
3.80
6 mA
Table 19: Output Timing Adjustments for IOB (Continued)
Add the
Adjustment
Below
Convert Output Time from
LVCMOS25 with 12mA Drive and
Fast Slew Rate to the Following
Signal Standard
Speed Grade
-5
-4
Units
ns
PCI33_3
–0.26
–0.26
ns
3.80
ns
SSTL18_I
–0.05
–0.05
ns
3.02
3.02
ns
SSTL18_I_DCI
–0.01
–0.01
ns
8 mA
3.04
3.04
ns
SSTL2_I
0.08
0.08
ns
12 mA
2.18
2.18
ns
SSTL2_I_DCI
0.01
0.01
ns
16 mA
2.05
2.05
ns
SSTL2_II
–0.04
–0.04
ns
24 mA
1.82
1.82
ns
SSTL2_II_DCI
–0.14
–0.14
ns
2 mA
3.15
3.15
ns
Differential Standards
4 mA
1.30
1.30
ns
LDT_25
–0.52
–0.52
ns
6 mA
0.53
0.53
ns
LVDS_25
–0.50
–0.50
ns
8 mA
0.54
0.54
ns
LVDS_25_DCI
12 mA
0.14
0.14
ns
BLVDS_25
–0.01
–0.01
ns
16 mA
0.08
0.08
ns
LVDSEXT_25
–0.50
–0.50
ns
24 mA
–0.03
–0.03
ns
LVDSEXT_25_DCI
LVDCI_33
0
0
ns
ULVDS_25
LVDCI_DV2_33
0
0
ns
LVPECL_25
ns
2 mA
6.24
6.24
ns
RSDS_25
ns
4 mA
3.81
3.81
ns
6 mA
3.03
3.03
ns
8 mA
3.02
3.02
ns
12 mA
2.17
2.17
ns
16 mA
2.05
2.05
ns
24 mA
1.88
1.88
ns
2 mA
3.14
3.14
ns
4 mA
1.31
1.31
ns
6 mA
0.50
0.50
ns
8 mA
0.51
0.51
ns
12 mA
0.12
0.12
ns
16 mA
0.06
0.06
ns
24 mA
0
0
ns
Slow
Fast
LVTTL
Slow
Fast
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
40
ns
ns
–0.48
–0.48
ns
Notes:
1. The numbers in this table are tested using the methodology
presented in Table 20 and are based on the operating
conditions set forth in Table 5, Table 8, and Table 10.
2. These adjustments are used to convert output- and
three-state-path times originally specified for the LVCMOS25
standard with 12 mA drive and Fast slew rate to times that
correspond to other signal standards. Do not adjust times
that measure when outputs go into a high-impedance state.
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Timing Measurement Methodology
When measuring timing parameters at the programmable
I/Os, different signal standards call for different test conditions. Table 20 presents the conditions to use for each standard.
LVTTL), then RT is set to 1MΩ to indicate an open connection, and VT is set to zero. The same measurement point
(VM) that was used at the Input is also used at the Output.
VT (VREF)
The method for measuring Input timing is as follows: A signal that swings between a Low logic level of VL and a High
logic level of VH is applied to the Input under test. Some
standards also require the application of a bias voltage to
the VREF pins of a given bank to properly set the
input-switching threshold. The measurement point of the
Input signal (VM) is commonly located halfway between VL
and VH.
FPGA Output
RT (RREF)
VM (VMEAS)
CL (CREF)
ds099-3_07_012004
Notes:
1. The names shown in parentheses are
used in the IBIS file.
The Output test setup is shown in Figure 4. A termination
voltage VT is applied to the termination resistor RT, the other
end of which is connected to the Output. For each standard,
RT and VT generally take on the standard values recommended for minimizing signal reflections. If the standard
does not ordinarily use terminations (e.g., LVCMOS,
Figure 4: Output Test Setup
Table 20: Test Methods for Timing Measurement at I/Os
Inputs
Signal Standard
Inputs and
Outputs
Outputs
VREF
VL
VH
RT
VT
VM
(V)
(V)
(V)
(Ω)
(V)
(V)
0.8
VREF - 0.2
VREF + 0.2
25
1.2
VREF
50
1.2
25
1.5
50
1.5
50
0.75
50
0.75
50
1.5
50
1.5
50
0.9
50
0.9
25
0.9
50
0.9
50
1.8
50
1.8
Single-Ended
GTL
GTL_DCI
GTLP
1.0
VREF - 0.2
VREF + 0.2
GTLP_DCI
HSTL_I
0.75
VREF - 0.5
VREF + 0.5
HSTL_I_DCI
HSTL_III
0.90
VREF - 0.5
VREF + 0.5
HSTL_III_DCI
HSTL_I_18
0.90
VREF - 0.5
VREF + 0.5
HSTL_I_DCI_18
HSTL_II_18
0.90
VREF - 0.5
VREF + 0.5
HSTL_II_DCI_18
HSTL_III_18
1.1
VREF - 0.5
VREF + 0.5
HSTL_III_DCI_18
LVCMOS12
-
0
1.2
1M
0
LVCMOS15
-
0
1.5
1M
0
LVDCI_15
1M
0
LVDCI_DV2_15
1M
0
20
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VREF
VREF
VREF
VREF
VREF
VREF
0.75
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
R
Spartan-3 FPGA Family: DC and Switching Characteristics
Table 20: Test Methods for Timing Measurement at I/Os (Continued)
Inputs
Inputs and
Outputs
Outputs
VREF
VL
VH
RT
VT
VM
(V)
(V)
(V)
(Ω)
(V)
(V)
-
0
1.8
1M
0
0.9
LVDCI_18
1M
0
LVDCI_DV2_18
1M
0
1M
0
LVDCI_25
1M
0
LVDCI_DV2_25
1M
0
1M
0
LVDCI_33
1M
0
LVDCI_DV2_33
1M
0
Signal Standard
LVCMOS18
LVCMOS25
-
LVCMOS33
-
LVTTL
PCI33_3
Rising
0
2.5
0
3.3
0
3.3
1M
0
1.4
-
Note 2
Note 2
25
0
0.94
25
3.3
2.03
50
0.9
VREF
50
0.9
50
1.25
50
1.25
25
1.25
50
1.25
0.9
VREF - 0.5
VREF + 0.5
SSTL18_I_DCI
SSTL2_I
1.25
VREF - 0.75
VREF + 0.75
SSTL2_I_DCI
SSTL2_II
1.65
Falling
SSTL18_I
1.25
1.25
VREF - 0.75
VREF + 0.75
SSTL2_II_DCI
VREF
VREF
Differential
LDT_25
-
0.6 - 0.125
0.6 + 0.125
60
0.6
0.6
LVDS_25
-
1.2 - 0.125
1.2 + 0.125
50
1.2
1.2
1M
0
LVDS_25_DCI
BLVDS_25
-
1.2 - 0.125
1.2 + 0.125
1M
0
1.2
LVDSEXT_25
-
1.2 - 0.125
1.2 + 0.125
50
1.2
1.2
-
-
LVDSEXT_25_DCI
ULVDS_25
-
0.6 - 0.125
0.6 + 0.125
60
0.6
0.6
LVPECL_25
-
1.6 - 0.3
1.6 + 0.3
1M
0
1.6
RSDS_25
-
1.3 - 0.1
1.3 + 0.1
50
1.2
1.2
Notes:
1. Descriptions of the relevant symbols are as follows:
2.
VREF -- The reference voltage for setting the input switching threshold
VM -- Voltage of measurement point on signal transition
VL -- Low-level test voltage at Input pin
VH -- High-level test voltage at Input pin
RT -- Effective termination resistance, which takes on a value of 1MΩ when no parallel termination is required
VT -- Termination voltage
CL -- Load capacitance at Output pin, which is 0 pF for all standards
According to the PCI specification.
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
40
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
The capacitive load (CL) is connected between the output
and GND. The Output timing for all standards, as published
in the speed files and the data sheet, is always based on a
CL value of zero unless otherwise specified. High-impedance probes (less than 1 pF) are used for all measurements. Any delay that the test fixture might contribute to test
measurements is subtracted from those measurements to
produce the final timing numbers as published in the speed
files and data sheet.
IBIS models are found at the following link:
Using IBIS Models to Simulate Load
Conditions in Application
2. Record the time to VM.
IBIS Models permit the most accurate prediction of timing
delays for a given application. The parameters found in the
IBIS model (VREF, RREF, CREF, and VMEAS) correspond
directly with the parameters used in Table 20, VT, RT, CL,
and VM. Do not confuse VREF (the termination voltage) from
the IBIS model with VREF (the input-switching threshold)
from the table! The four parameters describe all relevant
output test conditions.
http://www.xilinx.com/support/sw_ibis.htm
Simulate delays for a given application according to its specific load conditions as follows:
1. Simulate the desired signal standard with the output
driver connected to the test setup shown in Figure 4.
Use parameter values VT, RT, CL, and VM from
Table 20.
3. Simulate the same signal standard with the output
driver connected to the PCB trace with load. Use the
appropriate IBIS model (including VREF, RREF, CREF,
and VMEAS values) or capacitive value to represent the
load.
4. Record the time to VMEAS.
5. Compare the results of steps 2 and 4. The increase (or
decrease) in delay should be added to (or subtracted
from) the appropriate Output standard adjustment
(Table 19) to yield the worst-case delay of the PCB
trace.
Simultaneously Switching Output Guidelines
Table 21: Equivalent VCCO/GND Pairs per Bank
Device
VQ100
TQ144
PQ208
FT256
FG320
FG456
FG676
FG900
FG1156
XC3S50
1
1
2
-
-
-
-
-
-
XC3S200
1
1
2
3
-
-
-
-
-
XC3S400
-
1
2
3
3
5
-
-
-
XC3S1000
-
-
2
3
3
5
5
-
-
XC3S1500
-
-
-
-
3
5
6
-
-
XC3S2000
-
-
-
-
-
-
6
9
-
XC3S4000
-
-
-
-
-
-
-
10
12
XC3S5000
-
-
-
-
-
-
-
10
12
22
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Table 22: Maximum Number of Simultaneously
Switching Outputs per VCCO-GND Pair (Continued)
Table 22: Maximum Number of Simultaneously
Switching Outputs per VCCO-GND Pair
Package
Package
VQ100,
TQ144,
PQ208
Signal Standard
FT256,
FG320,
FG456,
FG676,
FG900,
FG1156
Signal Standard
LVCMOS18
Single-Ended Standards
VQ100,
TQ144,
PQ208
Slow
FT256,
FG320,
FG456,
FG676,
FG900,
FG1156
2
64
GTL
4
4
34
GTLP_DCI
3
6
22
GTLP
4
8
18
GTLP_DCI
3
12
13
HSTL_I
17
16
10
HSTL_I_DCI
17
2
36
HSTL_III
7
4
21
HSTL_III_DCI
7
6
13
HSTL_I_18
17
8
10
12
9
16
6
Fast
HSTL_I_DCI_18
HSTL_II_18
9
HSTL_II_DCI_18
HSTL_III_18
8
Slow
Fast
LVCMOS15
Slow
Fast
11
LVDCI_DV2_18
6
LVCMOS25
HSTL_III_DCI_18
LVCMOS12
LVDCI_18
Slow
2
76
2
55
4
46
4
32
6
33
6
18
8
24
2
31
12
18
4
13
16
11
6
9
24
7
2
55
2
42
4
31
4
20
6
18
6
15
8
15
8
13
12
10
12
11
2
25
16
8
4
16
24
5
6
13
LVDCI_25
13
8
11
LVDCI_DV2_25
7
12
7
LVDCI_15
10
LVDCI_DV2_15
5
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
40
Fast
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Table 22: Maximum Number of Simultaneously
Switching Outputs per VCCO-GND Pair (Continued)
Table 22: Maximum Number of Simultaneously
Switching Outputs per VCCO-GND Pair (Continued)
Package
VQ100,
TQ144,
PQ208
Signal Standard
LVCMOS33(1)
Slow
Fast
Package
FT256,
FG320,
FG456,
FG676,
FG900,
FG1156
Signal Standard
2
76
PCI33_3(1)
4
46
SSTL18_I
6
27
SSTL18_I_DCI
8
20
SSTL2_I
13
12
13
SSTL2_I_DCI
15
16
10
SSTL2_II
9
24
9
SSTL2_II_DCI
5
2
44
Differential Standards
4
26
LDT_25
6
16
LVDS_25
8
12
LVDS_25_DCI
12
10
BLVDS_25
16
7
LVDSEXT_25
24
3
LVDSEXT_25_DCI
LVDCI_33(1)
13
ULVDS_25
LVDCI_DV2_33(1)
7
LVPECL_25
2
60
RSDS_25
4
41
6
29
8
22
12
13
16
11
24
9
2
34
4
20
6
15
8
12
12
10
16
9
24
5
LVTTL(1)
Slow
Fast
24
VQ100,
TQ144,
PQ208
FT256,
FG320,
FG456,
FG676,
FG900,
FG1156
17
Notes:
1. The numbers in this table are recommendations that assume
sound board layout practice. For cases that exceed these
maximum numbers, perform IBIS simulations to confirm
signal integrity.
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Advance Product Specification
R
Spartan-3 FPGA Family: DC and Switching Characteristics
Core Logic Timing
Table 23: CLB Timing
Speed Grade
-5
Symbol
-4
Description
Min
Max
Min
Max
Units
When reading from the FFX (FFY) Flip-Flop,
the time from the active transition at the CLK
input to data appearing at the XQ (YQ) output
-
0.67
-
0.77
ns
Clock-to-Output Times
TCKO
Setup Times
TDYCK
Time from the setup of data at the D input to
the active transition at the CLK input of FFX
0.08
-
0.09
-
ns
TDXCK
Time from the setup of data at the D input to
the active transition at the CLK input of FFY
0.08
-
0.09
-
ns
TCKDY
Time from the active transition at FFY’s CLK
input to the point where data is last held at the
D input
0.01
-
0.01
-
ns
TCKDX
Time from the active transition at FFX’s CLK
input to the point where data is last held at the
D input
0.01
-
0.01
-
ns
TCH
The High pulse width of the CLB’s CLK signal
0.76
-
0.87
-
ns
TCL
The Low pulse width of the CLK signal
0.76
-
0.87
-
ns
FTOG
Maximum toggle frequency (for export control)
-
500
-
500
MHz
The time it takes for data to travel from the
CLB’s F (G) input to input to the X (Y) output
-
0.65
-
0.75
ns
Hold Times
Clock Timing
Propagation Times
TILO
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Table 24: Synchronous 18 x 18 Multiplier Timing
Speed Grade
-5
Symbol
-4
Description
P Outputs
Min
Max
Min
Max
Units
When reading from the
Multiplier, the time from the
active transition at the C
clock input to data
appearing at the P outputs
P[0]
-
0.76
-
0.88
ns
P[15]
-
0.97
-
1.11
ns
P[17]
-
1.17
-
1.34
ns
P[19]
-
1.37
-
1.58
ns
P[23]
-
1.78
-
2.04
ns
P[31]
-
2.59
-
2.97
ns
P[35]
-
3.00
-
3.44
ns
Time from the setup of data
at the A and B inputs to the
active transition at the C
input of the Multiplier
-
2.18
-
2.50
-
ns
Time from the active
transition at the Multiplier’s
C input to the point where
data is last held at the A
and B inputs
-
0
-
0
-
ns
Clock-to-Output Times
TMULTCK
Setup Times
TMULIDCK
Hold Times
TMULCKID
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
Table 25: Asynchronous 18 x 18 Multiplier Timing
Speed Grade
Symbol
Description
-5
-4
P Outputs
Max
Max
Units
P[0]
1.25
1.44
ns
P[15]
2.88
3.31
ns
P[17]
3.10
3.56
ns
P[19]
3.32
3.81
ns
P[23]
3.75
4.31
ns
P[31]
4.62
5.31
ns
P[35]
5.06
5.81
ns
Propagation Times
TMULT
The time it takes for data to travel
from the A and B inputs to the P
outputs
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
26
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Table 26: Block RAM Timing
Speed Grade
-5
Symbol
Description
-4
Min
Max
Min
Max
Units
-
2.10
-
2.41
ns
Time from the setup of data at
the DIN inputs to the active
transition at the CLK input of the
Block RAM
0.43
-
0.49
-
ns
Time from the active transition
at the Block RAM’s CLK input to
the point where data is last held
at the DIN inputs
0
-
0
-
ns
Clock-to-Output Times
TBCKO
When reading from the Block
RAM, the time from the active
transition at the CLK input to
data appearing at the DOUT
output
Setup Times
TBDCK
Hold Times
TBCKD
Clock Timing
TBPWH
The High pulse width of the
Block RAM’s CLK signal
1.26
-
1.44
-
ns
TBPWL
The Low pulse width of the CLK
signal
1.26
-
1.44
-
ns
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
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R
Spartan-3 FPGA Family: DC and Switching Characteristics
Digital Clock Manager (DCM) Timing
For specification purposes, the DCM consists of three key
components: the Delay-Locked Loop (DLL), the Digital Frequency Synthesizer (DFS), and the Phase Shifter (PS).
Aspects of DLL operation play a role in all DCM applications. All such applications inevitably use the CLKIN and the
CLKFB inputs connected to either the CLK0 or the CLK2X
feedback, respectively. Thus, specifications in the DLL
tables (Table 27 and Table 28) apply to any application that
only employs the DLL component. When the DFS and/or
the PS components are used together with the DLL, then
the specifications listed in the DFS and PS tables (Table 29
through Table 32) supersede any corresponding ones in the
DLL tables. DLL specifications that do not change with the
addition of DFS or PS functions are presented in Table 27
and Table 28.
Table 27: Recommended Operating Conditions for the DLL
Speed Grade
Symbol
Description
Frequency
Mode/
FCLKIN Range
Device
Revision
Min
Max
Min
Max
Units
Low
All
24(2)
165(3)
24
165(3)
MHz
0
48
280(3)
48
280(3)
MHz
Future
48
326
48
TBD
MHz
All
0
45%
55%
45%
55%
-
FCLKIN < 200 MHz
Future
-5
-4
Input Frequency Ranges
FCLKIN
CLKIN_FREQ_DLL_LF
CLKIN_FREQ_DLL_HF
Frequency for the
CLKIN input
High
Input Pulse Requirements
CLKIN_PULSE
CLKIN pulse width as
a percentage of the
CLKIN period
40%
60%
40%
60%
-
45%
55%
45%
55%
-
-300
+300
-300
+300
ps
High
-150
+150
-150
+150
ps
Low
-1
+1
-1
+1
ns
High
-1
+1
-1
+1
ns
All
-1
+1
-1
+1
ns
FCLKIN > 200 MHz
Input Clock Jitter and Delay Path Variation
CLKIN_CYC_JITT_DLL_LF
CLKIN_CYC_JITT_DLL_HF
CLKIN_CYC_PER_DLL_LF
CLKIN_CYC_PER_DLL_HF
CLKFB_DELAY_VAR_EXT
Cycle-to-cycle jitter at
the CLKIN input
Period jitter at the
CLKIN input
Allowable variation of
off-chip feedback delay
from the DCM output
to the CLKFB input
Low
All
Notes:
1. DLL specifications apply when any of the DLL outputs (CLK0, CLK90, CLK180, CLK270, CLK2X, CLK2X180, or CLKDV) are in use.
2. Use of the DFS permits lower FCLKIN frequencies. See Table 29.
3. To double the maximum effective FCLKIN limit, set the CLKIN_DIVIDE_BY_2 attribute to TRUE.
28
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 28: Switching Characteristics for the DLL
Speed Grade
Symbol
Description
-5
-4
Frequency Mode /
FCLKIN Range
Device
Revision
Min
Max
Min
All
24
165
24
165
MHz
No phase
shifting
48
280
48
280
MHz
Phase
shifting
48
200
48
200
MHz
Future
48
326
48
TBD
MHz
0(3)
48
330
48
330
MHz
Future
48
330
48
330
MHz
Max Units
Output Frequency Ranges
CLKOUT_FREQ_1X_LF
Frequency for the
CLK0, CLK90,
CLK180, and
CLK270 outputs
Low
CLKOUT_FREQ_1X_HF
Frequency for the
CLK0 and CLK180
outputs
High
CLKOUT_FREQ_2X_LF
CLKOUT_FREQ_DV_LF
CLKOUT_FREQ_DV_HF
0
Frequency for the
CLK2X and
CLK2X180 outputs
Low
Frequency for the
CLKDV output
Low
All
1.5
100
1.5
100
MHz
High
All
3
215
3
215
MHz
All
All
Output Clock Jitter
CLKOUT_PER_JITT_0
Period jitter at the
CLK0 output
-100 +100 -100 +100
ps
CLKOUT_PER_JITT_90
Period jitter at the
CLK90 output
-150 +150 -150 +150
ps
CLKOUT_PER_JITT_180
Period jitter at the
CLK180 output
-150 +150 -150 +150
ps
CLKOUT_PER_JITT_270
Period jitter at the
CLK270 output
-150 +150 -150 +150
ps
CLKOUT_PER_JITT_2X
Period jitter at the
CLK2X and
CLK2X180 outputs
-200 +200 -200 +200
ps
CLKOUT_PER_JITT_DV1
Period jitter at the
CLKDV output
when performing
integer division
-150 +150 -150 +150
ps
CLKOUT_PER_JITT_DV2
Period jitter at the
CLKDV output
when performing
non-integer
division
-300 +300 -300 +300
ps
-150 +150 -150 +150
ps
Duty Cycle
CLKOUT_DUTY_CYCLE_DLL(4) Duty cycle
variation for the
CLK0, CLK90,
CLK180, CLK270,
CLK2X,
CLK2X180, and
CLKDV outputs
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29
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 28: Switching Characteristics for the DLL (Continued)
Speed Grade
Symbol
Description
-5
-4
Frequency Mode /
FCLKIN Range
Device
Revision
Min
Max
Min
Max Units
+50
-50
Phase Alignment
CLKIN_CLKFB_PHASE
Phase offset
between the
CLKIN and CLKFB
inputs
All
All
-50
+50
ps
CLKOUT_PHASE
Phase offset
between any DLL
output and any
other DCM outputs
All
All
-140 +140 -140 +140
ps
24 MHz < FCLKIN < 30 MHz
All
Lock Time
-
960
-
960
µs
30 MHz < FCLKIN < 40 MHz
-
720
-
720
µs
LOCK_DLL_40_50
40 MHz < FCLKIN < 50 MHz
-
400
-
400
µs
LOCK_DLL_50_60
50 MHz < FCLKIN < 60 MHz
-
200
-
200
µs
FCLKIN > 60 MHz
-
160
-
160
µs
30.0
60.0
30.0
60.0
ps
LOCK_DLL_24_30
LOCK_DLL_30_40
Time required to
achieve lock
LOCK_DLL_60
Delay Lines
DCM_TAP
Delay tap
resolution
All
All
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5 and Table 27.
2. DLL specifications apply when any of the DLL outputs (CLK0, CLK90, CLK180, CLK270, CLK2X, CLK2X180, or CLKDV) are in use.
3. For Rev. 0 devices only, use feedback from the CLK0 output (instead of the CLK2X output) and set the CLK_FEEDBACK attribute to
1X.
4. This specification only applies if the attribute DUTY_CYCLE_CORRECTION = TRUE.
30
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 29: Recommended Operating Conditions for the DFS
Speed Grade
Symbol
Description
-5
-4
Frequency
Mode
Min
Max
Min
Max
Units
Low
1
210
1
210
MHz
High
48
280
48
280
MHz
Low
-300
+300
-300
+300
ps
High
-150
+150
-150
+150
ps
Low
-1
+1
-1
+1
ns
High
-1
+1
-1
+1
ns
Input Frequency Ranges(2)
FCLKIN
CLK_FREQ_FX
CLK_FREQ_FX_HF
Frequency for the
CLKIN input
Input Clock Jitter
CLKIN_CYC_JITT_FX_LF
Cycle-to-cycle jitter at
the CLKIN input
CLKIN_CYC_JITT_FX_HF
CLKIN_CYC_PER_FX_LF
Period jitter at the
CLKIN input
CLKIN_CYC_PER_FX_HF
Notes:
1. DFS specifications apply when either of the DFS outputs (CLKFX or CLKFX180) are in use.
2. If both DFS and DLL outputs are used on the same DCM, follow the more restrictive CLKIN_FREQ_DLL specifications in Table 27.
Table 30: Switching Characteristics for the DFS
Speed Grade
Symbol
Description
-5
-4
Frequency
Mode
Device
Revision
Min
Max
Min
Max
Units
Low
All
24
210
24
210
MHz
High
0
210
280
210
280
MHz
Future
210
326
210
TBD
MHz
Output Frequency Ranges
CLKOUT_FREQ_FX_LF
CLKOUT_FREQ_FX_HF
Frequency for the CLKFX
and CLKFX180 outputs
Output Clock Jitter
CLKOUT_PER_JITT_FX
Period jitter at the CLKFX
and CLKFX180 outputs
All
All
ps
Duty cycle precision for
the CLKFX and
CLKFX180 outputs
All
All
-100
+100
-100
+100
ps
Phase offset between
either DFS output and
any other DCM output
All
All
-140
+140
-140
+140
ps
Once the CLKIN and
CLKFB signals become
in-phase, the time it takes
for the DCM’s LOCKED
output to go High.
All
All
-
10.0
-
10.0
ms
Duty Cycle(3)
CLKOUT_DUTY_CYCLE_FX
Phase Alignment
CLKOUT_PHASE
Lock Time
LOCK_FX
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5 and Table 29.
2. DFS specifications apply when either of the DFS outputs (CLKFX or CLKFX180) is in use.
3. The CLKFX and CLKFX180 outputs always approximate 50% duty cycles.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Phase Shifter (PS)
Phase Shifter operation is only supported in the Low frequency mode. For Rev. 0 devices, the Variable Phase mode
only permits positive shifts. For any desired negative phase
shift (–S), an equivalent positive phase shift (360° – S) is
possible. In order to use the Variable Phase mode, it is necessary to set the BitGen option Centered_x#y# option to 0.
BitGen is part of the Xilinx development software. The lines
to be typed in the command prompt are shown in Table 33,
page 33.
Table 31: Recommended Operating Conditions for the PS in Variable Phase Mode
Speed Grade
Symbol
Description
-5
-4
Frequency Mode/
FPSCLK Range
Device
Revision
Min
Max
Min
Max
Units
Low
All
1
165
1
165
MHz
Low
0
45%
55%
45%
55%
-
Future
40%
60%
40%
60%
-
45%
55%
45%
55%
-
Operating Frequency Ranges
PSCLK_FREQ
(FPSCLK)
Frequency for the
PSCLK input
Input Pulse and Requirements
PSCLK_PULSE
PSCLK pulse width
as a percentage of
the PSCLK period
Low
FPSCLK < 200 MHz
FPSCLK > 200 MHz
Notes:
1. The PS specifications in this table apply when the PS attribute CLKOUT_PHASE_SHIFT= VARIABLE.
Table 32: Switching Characteristics for the PS in Variable Phase Mode
Speed Grade
Symbol
Description
-5
-4
Frequency
Mode
Min
Max
Min
Max
Units
Low
-
10.0
-
10.0
ns
Low
-
Phase Shifting Range
FINE_SHIFT_RANGE
Range for variable
phase shifting
Lock Time
LOCK_DLL_FINE_SHIFT(3) In the Variable
Phase mode, the
additional time it
takes for the DCM’s
LOCKED output to
go High
-
ms
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5 and Table 31.
2. The PS specifications in this table apply when the PS attribute CLKOUT_PHASE_SHIFT= VARIABLE.
3. When in the Variable Phase mode, add the values for this parameter to the appropriate LOCK_DLL parameter from Table 28 for the
total lock time.
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 33: BitGen Commands for Variable Phase Mode
Device
DCM Location (Device Top View)
XC3S50
All others
DS099-3 (v1.3) March 4, 2004
Advance Product Specification
40
BitGen Command Line
Upper
bitgen -g centered_x0y1:0 design_name.ncd
Lower
bitgen -g centered_x0y0:0 design_name.ncd
Upper left
bitgen -g centered_x0y1:0 design_name.ncd
Upper right
bitgen -g centered_x1y1:0 design_name.ncd
Lower left
bitgen -g centered_x0y0:0 design_name.ncd
Lower right
bitgen -g centered_x1y0:0 design_name.ncd
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Spartan-3 FPGA Family: DC and Switching Characteristics
Configuration and JTAG Timing
VCCINT
(Supply)
1.2V
VCCAUX
(Supply)
2.5V
VCCO Bank 4
(Supply)
2.5V
TPOR
PROG_B
(Input)
INIT_B
(Open-Drain)
TPROG
TPL
TICCK
CCLK
(Output)
DS099-3_03_022904
Notes:
1. The VCCINT, VCCAUX, and VCCO supplies may be applied in any order.
2. The Low-going pulse on PROG_B is optional after power-on but necessary for reconfiguration without a power cycle.
3. The rising edge of INIT_B samples the voltage levels applied to the mode pins (M0 - M2).
Figure 5: Waveforms for Power-On and the Beginning of Configuration
Table 34: Power-On Timing and the Beginning of Configuration
All Speed Grades
Symbol
Description
TPOR(2)
The time from the application of VCCINT, VCCAUX, and
VCCO Bank 4 supply voltages (whichever occurs last)
to the rising transition of the INIT_B pin
TPROG
TPL
(2)
TICCK(3)
Device
Min
Max
Units
XC3S50
-
5
ms
XC3S200
-
5
ms
XC3S400
-
5
ms
XC3S1000
-
5
ms
XC3S1500
-
7
ms
XC3S2000
-
7
ms
XC3S4000
-
7
ms
XC3S5000
-
7
ms
0.3
-
µs
The width of the low-going pulse on the PROG_B pin
All
The time from the rising edge of the PROG_B pin to
the rising transition on the INIT_B pin
XC3S50
-
2
ms
XC3S200
-
2
ms
XC3S400
-
2
ms
XC3S1000
-
2
ms
XC3S1500
-
3
ms
XC3S2000
-
3
ms
XC3S4000
-
3
ms
XC3S5000
-
3
ms
0.5
4.0
µs
The time from the rising edge of the INIT_B pin to the
generation of the configuration clock signal at the
CCLK output pin
All
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
2. Power-on reset and the clearing of configuration memory occurs during this period.
3. This specification applies only for the Master Serial and Master Parallel modes.
34
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Spartan-3 FPGA Family: DC and Switching Characteristics
PROG_B
(Input)
INIT_B
(Open-Drain)
TCCH
TCCL
CCLK
(Input/Output)
TDCC
DIN
(Input)
1/FCCSER
TCCD
Bit 0
Bit n+1
Bit n
Bit 1
TCCO
DOUT
(Output)
Bit n-63
Bit n-64
DS099-3_04_041103
Notes:
1. The CS_B, WRITE_B, and BUSY signals are not used in the serial modes. Keep the CS_B and WRITE_B inputs inactive (i.e., both
pins High).
Figure 6: Waveforms for Master and Slave Serial Configuration
Table 35: Timing for the Master and Slave Serial Configuration Modes
All Speed Grades
Symbol
Description
Slave/Master
Min
Max
Units
The time from the rising transition on the
CCLK pin to data appearing at the DOUT pin
Both
-
12.0
ns
The time from the setup of data at the DIN pin
to the rising transition at the CCLK pin
Both
-
10.0
ns
The time from the rising transition at the
CCLK pin to the point when data is last held
at the DIN pin
Both
-
0
ns
TCCH
The High pulse width at the CCLK input pin
Slave
5.0
-
ns
TCCL
The Low pulse width at the CCLK input pin
5.0
-
ns
FCCSER
Frequency of the clock signal at the CCLK
input pin
-
66
MHz
∆FCCSER
Variation from the generated CCLK frequency
set using the ConfigRate BitGen option
–50%
+50%
-
Clock-to-Output Times
TCCO
Setup Times
TDCC
Hold Times
TCCD
Clock Timing
Master
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
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Spartan-3 FPGA Family: DC and Switching Characteristics
PROG_B
(Input)
INIT_B
(Open-Drain)
TSMCSCC
TSMCCCS
CS_B
(Input)
TSMCCW
TSMWCC
RDWR_B
(Input)
TCCH
TCCL
CCLK
(Input/Output)
TSMDCC
D0 - D7
(Inputs)
1/FCCPAR
TSMCCD
Byte 0
Byte 1
Byte n
TSMCKBY
Byte n+1
TSMCKBY
High-Z
BUSY
(Output)
High-Z
BUSY
DS099-3_05_041103
Notes:
1. Switching RDWR_B High or Low while holding CS_B Low asynchronously aborts configuration.
Figure 7: Waveforms for Master and Slave Parallel Configuration
Table 36: Timing for the Master and Slave Parallel Configuration Modes
All Speed Grades
Symbol
Description
Slave/Master
Min
Max
Units
The time from the rising transition on the CCLK pin to a
signal transition at the BUSY pin
Slave
-
12.0
ns
TSMDCC
The time from the setup of data at the D0-D7 pins to the
rising transition at the CCLK pin
Both
10.0
-
ns
TSMCSCC
The time from the setup of a logic level at the CS_B pin to
the rising transition at the CCLK pin
10.0
-
ns
TSMCCW(2)
The time from the setup of a logic level at the RDWR_B pin
to the rising transition at the CCLK pin
10.0
-
ns
Clock-to-Output Times
TSMCKBY
Setup Times
36
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Spartan-3 FPGA Family: DC and Switching Characteristics
Table 36: Timing for the Master and Slave Parallel Configuration Modes (Continued)
All Speed Grades
Symbol
Description
Slave/Master
Min
Max
Units
Both
0
-
ns
Hold Times
TSMCCD
The time from the rising transition at the CCLK pin to the
point when data is last held at the D0-D7 pins
TSMCCCS
The time from the rising transition at the CCLK pin to the
point when a logic level is last held at the CS_B pin
0
-
ns
TSMWCC(2)
The time from the rising transition at the CCLK pin to the
point when a logic level is last held at the RDWR_B pin
0
-
ns
5
-
ns
5
-
ns
-
66
MHz
-
100
MHz
–50%
+50%
-
Clock Timing
TCCH
The High pulse width at the CCLK input pin
TCCL
The Low pulse width at the CCLK input pin
FCCPAR
∆FCCPAR
Frequency of the clock signal
at the CCLK input pin
Not using the BUSY
Slave
pin(3)
Using the BUSY pin
Variation from the generated CCLK frequency set using
the BitGen option ConfigRate
Master
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
2. RDWR_B is synchronized to CCLK for the purpose of performing the Abort operation. The same pin asynchronously controls the
driver impedance of the D0 - D7 pins. To avoid contention when writing configuration data to the D0 - D7 bus, do not bring RDWR_B
High when CS_B is Low.
3. In the Slave Parallel mode, it is necessary to use the BUSY pin when the CCLK frequency exceeds this maximum specification.
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Spartan-3 FPGA Family: DC and Switching Characteristics
TCCH
TCCL
TCK
(Input)
1/FTCK
TTCKTMS
TTMSTCK
TMS
(Input)
TTDITCK
TTCKTDI
TDI
(Input)
TTCKTDO
TDO
(Output)
DS099_06_040703
Figure 8: JTAG Waveforms
Table 37: Timing for the JTAG Test Access Port
All Speed Grades
Symbol
Description
Min
Max
Units
The time from the falling transition on the TCK pin
to data appearing at the TDO pin
-
11.0
ns
TTDITCK
The time from the setup of data at the TDI pin to
the rising transition at the TCK pin
5.0
-
ns
TTMSTCK
The time from the setup of a logic level at the TMS
pin to the rising transition at the TCK pin
5.0
-
ns
TTCKTDI
The time from the rising transition at the TCK pin
to the point when data is last held at the TDI pin
0
-
ns
TTCKTMS
The time from the rising transition at the TCK pin
to the point when a logic level is last held at the
TMS pin
0
-
ns
TCCH
The High pulse width at the TCK pin
5
-
ns
TCCL
The Low pulse width at the TCK pin
5
-
ns
FTCK
Frequency of the TCK signal
-
33
MHz
Clock-to-Output Times
TTCKTDO
Setup Times
Hold Times
Clock Timing
Notes:
1. The numbers in this table are based on the operating conditions set forth in Table 5.
38
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Spartan-3 FPGA Family: DC and Switching Characteristics
Revision History
Date
Version No.
Description
04/11/03
1.0
Initial Xilinx release.
07/11/03
1.1
Extended Absolute Maximum Rating for junction temperature in Table 1. Added numbers for
typical quiescent supply current (Table 7) and DLL timing.
02/06/04
1.2
Revised VIN maximum rating (Table 1). Added power-on requirements (Table 3), leakage
current number (Table 6), and differential output voltage levels (Table 11) for Rev. 0. Published
new quiescent current numbers (Table 7). Updated pull-up and pull-down resistor strengths
(Table 6). Added LVDCI_DV2 and LVPECL standards (Table 10 and Table 11). Changed
CCLK setup time (Table 35 and Table 36).
03/04/04
1.3
Added timing numbers from v1.29 speed files as well as DCM timing (Table 27 through
Table 32).
The Spartan-3 Family Data Sheet
DS099-1, Spartan-3 FPGA Family: Introduction and Ordering Information (Module 1)
DS099-2, Spartan-3 FPGA Family: Functional Description (Module 2)
DS099-3, Spartan-3 FPGA Family: DC and Switching Characteristics (Module 3)
DS099-4, Spartan-3 FPGA Family: Pinout Descriptions (Module 4)
DS099-3 (v1.3) March 4, 2004
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0105
Spartan-3 FPGA Family:
Pinout Descriptions
R
DS099-4 (v1.5) July 13, 2004
0
0
Product Specification
Introduction
This data sheet module describes the various pins on a
Spartan™-3 FPGA and how they connect to the supported
component packages.
•
•
•
•
The Pin Types section categorizes all of the FPGA
pins by their function type.
The Pin Definitions section provides a top-level
description for each pin on the device.
The Detailed, Functional Pin Descriptions section
offers significantly more detail about each pin,
especially for the dual- or special-function pins used
during device configuration.
Some pins have associated optional behavior,
controlled by settings in the configuration bitstream.
These options are described in the Bitstream Options
section.
•
The Package Overview section describes the various
packaging options available for Spartan-3 FPGAs.
Detailed pin list tables and footprint diagrams are
provided for each package solution.
Pin Descriptions
Pin Types
A majority of the pins on a Spartan-3 FPGA are general-purpose, user-defined I/O pins. There are, however, up
to 12 different functional types of pins on Spartan-3 packages, as outlined in Table 1. In the package footprint drawings that follow, the individual pins are color-coded
according to pin type as in the table.
Table 1: Types of Pins on Spartan-3 FPGAs
Type/
Color
Code
I/O
Description
Pin Name(s) in Type
Unrestricted, general-purpose user-I/O pin. Most pins can be
paired together to form differential I/Os.
IO,
IO_Lxxy_#
DUAL
Dual-purpose pin used in some configuration modes during the
configuration process and then usually available as a user I/O
after configuration. If the pin is not used during configuration, this
pin behaves as an I/O-type pin. There are 12 dual-purpose
configuration pins on every package.
IO_Lxxy_#/DIN/D0, IO_Lxxy_#/D1,
IO_Lxxy_#/D2, IO_Lxxy_#/D3,
IO_Lxxy_#/D4, IO_Lxxy_#/D5,
IO_Lxxy_#/D6, IO_Lxxy_#/D7,
IO_Lxxy_#/CS_B, IO_Lxxy_#/RDWR_B,
IO_Lxxy_#/BUSY/DOUT,
IO_Lxxy_#/INIT_B
CONFIG
Dedicated configuration pin. Not available as a user-I/O pin.
Every package has seven dedicated configuration pins. These
pins are powered by VCCAUX.
CCLK, DONE, M2, M1, M0, PROG_B,
HSWAP_EN
JTAG
Dedicated JTAG pin. Not available as a user-I/O pin. Every
package has four dedicated JTAG pins. These pins are powered
by VCCAUX.
TDI, TMS, TCK, TDO
DCI
Dual-purpose pin that is either a user-I/O pin or used to calibrate
output buffer impedance for a specific bank using Digital
Controlled Impedance (DCI). There are two DCI pins per I/O
bank.
IO/VRN_#
IO_Lxxy_#/VRN_#
IO/VRP_#
IO_Lxxy_#/VRP_#
VREF
Dual-purpose pin that is either a user-I/O pin or, along with all
other VREF pins in the same bank, provides a reference voltage
input for certain I/O standards. If used for a reference voltage
within a bank, all VREF pins within the bank must be connected.
IO/VREF_#
IO_Lxxy_#/VREF_#
© 2003-2004 Xilinx, Inc. All rights reserved. All Xilinx trademarks, registered trademarks, patents, and disclaimers are as listed at http://www.xilinx.com/legal.htm.
All other trademarks and registered trademarks are the property of their respective owners. All specifications are subject to change without notice.
DS099-4 (v1.5) July 13, 2004
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Spartan-3 FPGA Family: Pinout Descriptions
Table 1: Types of Pins on Spartan-3 FPGAs (Continued)
Type/
Color
Code
Description
Pin Name(s) in Type
GND
Dedicated ground pin. The number of GND pins depends on the
package used. All must be connected.
GND
VCCAUX
Dedicated auxiliary power supply pin. The number of VCCAUX
pins depends on the package used. All must be connected to
+2.5V.
VCCAUX
VCCINT
Dedicated internal core logic power supply pin. The number of
VCCINT pins depends on the package used. All must be
connected to +1.2V.
VCCINT
VCCO
Dedicated I/O bank, output buffer power supply pin. Along with
other VCCO pins in the same bank, this pin supplies power to the
output buffers within the I/O bank and sets the input threshold
voltage for some I/O standards.
VCCO_#
TQ144 Package Only:
VCCO_LEFT, VCCO_TOP,
VCCO_RIGHT, VCCO_BOTTOM
GCLK
Dual-purpose pin that is either a user-I/O pin or an input to a
specific global buffer input. Every package has eight dedicated
GCLK pins.
IO_Lxxy_#/GCLK0, IO_Lxxy_#/GCLK1,
IO_Lxxy_#/GCLK2, IO_Lxxy_#/GCLK3,
IO_Lxxy_#/GCLK4, IO_Lxxy_#/GCLK5,
IO_Lxxy_#/GCLK6, IO_Lxxy_#/GCLK7
This package pin is not connected in this specific
device/package combination but may be connected in larger
devices in the same package.
N.C.
N.C.
Notes:
1. # = I/O bank number, an integer between 0 and 7.
I/Os with Lxxy_# are part of a differential output pair. ‘L’ indicates differential output capability. The “xx” field is a
two-digit integer, unique to each bank that identifies a differential pin-pair. The ‘y’ field is either ‘P’ for the true signal or
‘N’ for the inverted signal in the differential pair. The ‘#’ field
is the I/O bank number.
2
Pin Definitions
Table 2 provides a brief description of each pin listed in the
Spartan-3 pinout tables and package footprint diagrams.
Pins are categorized by their pin type, as listed in Table 1.
See Detailed, Functional Pin Descriptions for more information.
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Spartan-3 FPGA Family: Pinout Descriptions
Table 2: Spartan-3 Pin Definitions
Pin Name
Direction
Description
I/O: General-purpose I/O pins
I/O
I/O_Lxxy_#
User-defined as input,
output, bidirectional,
three-state output,
open-drain output,
open-source output
User I/O:
User-defined as input,
output, bidirectional,
three-state output,
open-drain output,
open-source output
User I/O, Half of Differential Pair:
Unrestricted single-ended user-I/O pin. Supports all I/O standards
except the differential standards.
Unrestricted single-ended user-I/O pin or half of a differential pair.
Supports all I/O standards including the differential standards.
DUAL: Dual-purpose configuration pins
IO_Lxxy_#/DIN/D0,
IO_Lxxy_#/D1,
IO_Lxxy_#/D2,
IO_Lxxy_#/D3,
IO_Lxxy_#/D4,
IO_Lxxy_#/D5,
IO_Lxxy_#/D6,
IO_Lxxy_#/D7
Input during configuration
Configuration Data Port:
Possible bidirectional I/O
after configuration if
SelectMap port is retained.
In Parallel (SelectMAP) modes, D0-D7 are byte-wide configuration
data pins. These pins become user I/Os after configuration unless
the SelectMAP port is retained via the Persist bitstream option.
Otherwise, user I/O after
configuration
In Serial modes, DIN (D0) serves as the single configuration data
input. This pin becomes a user I/O after configuration unless
retained by the Persist bitstream option.
IO_Lxxy_#/CS_B
Input during Parallel mode
configuration
Chip Select for Parallel Mode Configuration:
Possible input after
configuration if SelectMap
port is retained.
In Parallel (SelectMAP) modes, this is the active-Low Chip Select
signal. This pin becomes a user I/O after configuration unless the
SelectMAP port is retained via the Persist bitstream option.
Otherwise, user I/O after
configuration
IO_Lxxy_#/RDWR_B
Input during Parallel mode
configuration
Possible input after
configuration if SelectMap
port is retained.
Read/Write Control for Parallel Mode Configuration:
In Parallel (SelectMAP) modes, this is the active-Low Write
Enable, active-High Read Enable signal. This pin becomes a user
I/O after configuration unless the SelectMAP port is retained via
the Persist bitstream option.
Otherwise, user I/O after
configuration
IO_Lxxy_#/
BUSY/DOUT
Output during configuration
Possible output after
configuration if SelectMap
port is retained.
Otherwise, user I/O after
configuration
Configuration Data Rate Control for Parallel Mode, Serial Data
Output for Serial Mode:
In Parallel (SelectMAP) modes, BUSY throttles the rate at which
configuration data is loaded. This pin becomes a user I/O after
configuration unless the SelectMAP port is retained via the Persist
bitstream option.
In Serial modes, DOUT provides preamble and configuration data
to downstream devices in a multi-FPGA daisy-chain. This pin
becomes a user I/O after configuration.
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Spartan-3 FPGA Family: Pinout Descriptions
Table 2: Spartan-3 Pin Definitions (Continued)
Pin Name
IO_Lxxy_#/INIT_B
Direction
Bidirectional (open-drain)
during configuration
User I/O after configuration
Description
Initializing Configuration Memory/Detected Configuration Error:
When Low, this pin indicates that configuration memory is being
cleared. When held Low, this pin delays the start of configuration.
After this pin is released or configuration memory is cleared, the
pin goes High. During configuration, a Low on this output indicates
that a configuration data error occurred. This pin becomes a user
I/O after configuration.
DCI: Digitally Controlled Impedance reference resistor input pins
IO_Lxxy_#/VRN_# or
IO/VRN_#
Input when using DCI
DCI Reference Resistor for NMOS I/O Transistor (per bank):
Otherwise, same as I/O
If using DCI, a 1% precision impedance-matching resistor is
connected between this pin and the VCCO supply for this bank.
Otherwise, this pin is a user I/O.
IO_Lxxy_#/VRP_# or
IO/VRP_#
Input when using DCI
DCI Reference Resistor for PMOS I/O Transistor (per bank):
Otherwise, same as I/O
If using DCI, a 1% precision impedance-matching resistor is
connected between this pin and the ground supply. Otherwise, this
pin is a user I/O.
GCLK: Global clock buffer inputs
IO_Lxxy_#/GCLK0,
IO_Lxxy_#/GCLK1,
IO_Lxxy_#/GCLK2,
IO_Lxxy_#/GCLK3,
IO_Lxxy_#/GCLK4,
IO_Lxxy_#/GCLK5,
IO_Lxxy_#/GCLK6,
IO_Lxxy_#/GCLK7
Input if connected to global
clock buffers
Otherwise, same as I/O
Global Buffer Input:
Direct input to a low-skew global clock buffer. If not connected to a
global clock buffer, this pin is a user I/O.
VREF: I/O bank input reference voltage pins
IO_Lxxy_#/VREF_#
or
IO/VREF_#
Voltage supply input when
VREF pins are used within a
bank.
Otherwise, same as I/O
Input Buffer Reference Voltage for Special I/O Standards (per
bank):
If required to support special I/O standards, all the VREF pins
within a bank connect to a input threshold voltage source.
If not used as input reference voltage pins, these pins are available
as individual user-I/O pins.
CONFIG: Dedicated configuration pins
CCLK
Input in Slave configuration
modes
Configuration Clock:
The configuration clock signal synchronizes configuration data.
Output in Master
configuration modes
PROG_B
Input
Program/Configure Device:
Active Low asynchronous reset to configuration logic. Asserting
PROG_B Low for an extended period delays the configuration
process. This pin has an internal weak pull-up resistor during
configuration.
4
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Spartan-3 FPGA Family: Pinout Descriptions
Table 2: Spartan-3 Pin Definitions (Continued)
Pin Name
DONE
Direction
Bidirectional with open-drain
or totem-pole Output
Description
Configuration Done, Delay Start-up Sequence:
A Low-to-High output transition on this bidirectional pin signals the
end of the configuration process.
The FPGA produces a Low-to-High transition on this pin to
indicate that the configuration process is complete. The DriveDone
bitstream generation option defines whether this pin functions as
a totem-pole output that actively drives High or as an open-drain
output. An open-drain output requires a pull-up resistor to produce
a High logic level. The open-drain option permits the DONE lines
of multiple FPGAs to be tied together, so that the common node
transitions High only after all of the FPGAs have completed
configuration. Externally holding the open-drain output Low delays
the start-up sequence, which marks the transition to user mode.
M0, M1, M2
Input
Configuration Mode Selection:
These inputs select the configuration mode. The logic levels
applied to the mode pins are sampled on the rising edge of INIT_B.
See Table 7.
HSWAP_EN
Input
Disable Weak Pull-up Resistors During Configuration:
A Low on this pin enables weak pull-up resistors on all pins that are
not actively involved in the configuration process. A High value
disables all pull-ups, allowing the non-configuration pins to float.
JTAG: JTAG interface pins
TCK
Input
JTAG Test Clock:
The TCK clock signal synchronizes all JTAG port operations.
TDI
Input
JTAG Test Data Input:
TDI is the serial data input for all JTAG instruction and data
registers.
TMS
Input
JTAG Test Mode Select:
The serial TMS input controls the operation of the JTAG port.
TDO
Output
JTAG Test Data Output:
TDO is the serial data output for all JTAG instruction and data
registers.
VCCO: I/O bank output voltage supply pins
VCCO_#
Supply
Power Supply for Output Buffer Drivers (per bank):
These pins power the output drivers within a specific I/O bank.
VCCAUX: Auxiliary voltage supply pins
VCCAUX
Supply
Power Supply for Auxiliary Circuits:
+2.5V power pins for auxiliary circuits, including the Digital Clock
Managers (DCMs), the dedicated configuration pins (CONFIG),
and the dedicated JTAG pins. All VCCAUX pins must be
connected.
VCCINT: Internal core voltage supply pins
VCCINT
Supply
Power Supply for Internal Core Logic:
+1.2V power pins for the internal logic. All pins must be connected.
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Spartan-3 FPGA Family: Pinout Descriptions
Table 2: Spartan-3 Pin Definitions (Continued)
Pin Name
Direction
Description
GND: Ground supply pins
GND
Ground:
Supply
Ground pins, which are connected to the power supply’s return
path. All pins must be connected.
N.C.: Unconnected package pins
Unconnected Package Pin:
N.C.
These package pins are unconnected.
Notes:
1. All unused inputs and bidirectional pins must be tied either High or Low. For unused enable inputs, apply the level that disables the
associated function. One common approach is to activate internal pull-up or pull-down resistors. An alternative approach is to
externally connect the pin to either VCCO or GND.
2. All outputs are of the totem-pole type — i.e., they can drive High as well as Low logic levels — except for the cases where “Open
Drain” is indicated. The latter can only drive a Low logic level and require a pull-up resistor to produce a High logic level.
Detailed, Functional Pin Descriptions
I/O Type: Unrestricted, General-purpose I/O
Pins
•
•
•
‘L’ indicates differential capability.
"xx" is a two-digit integer, unique for each bank, that
identifies a differential pin-pair.
‘y’ is replaced by ‘P’ for the true signal or ‘N’ for the
inverted. These two pins form one differential pin-pair.
‘#’ is an integer, 0 through 7, indicating the associated
I/O bank.
After configuration, I/O-type pins are inputs, outputs, bidirectional I/O, three-state outputs, open-drain outputs, or
open-source outputs, as defined in the application
•
Pins labeled "IO" support all SelectIO™ signal standards
except differential standards. A given device at most only
has a few of these pins.
If unused, these pins are in a high impedance state. The Bitstream generator option UnusedPin enables a weak pull-up
or pull-down resistor on all unused I/O pins.
A majority of the general-purpose I/O pins are labeled in the
format “IO_Lxxy_#”. These pins support all SelectIO signal
standards, including the differential standards such as
LVDS, ULVDS, BLVDS, RSDS, or LDT.
Behavior from Power-On through End of Configuration
For additional information, see the “IOB” section under
Functional Description (Module 2 of the Spartan-3 data sheet).
Differential Pair Labeling
A pin supports differential standards if the pin is labeled in
the format “Lxxy_#”. The pin name suffix has the following
significance. Figure 1 provides a specific example showing
a differential input to and a differential output from Bank 2.
During the configuration process, all pins that are not
actively involved in the configuration process are in a
high-impedance state. The HSWAP_EN input determines
whether or not weak pull-up resistors are enabled during
configuration. HSWAP_EN = 0 enables the weak pull-up
resistors. HSWAP_EN = 1 disables the pull-up resistors
allowing the pins to float, which is the desired state for
hot-swap applications.
Pair Number
Bank 1
IO_L38P_2
B ank 6
B ank 3 Bank 2
Bank 7
Bank 0
Bank 5
IO_L38N_2
Bank Number
Positive Polarity,
True Driver
IO_L39P_2
IO_L39N_2
Negative Polarity,
Inverted Driver
Bank 4
DS099-4_01_042303
Figure 1: Differential Pair Labelling
6
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DUAL Type: Dual-Purpose Configuration and
I/O Pins
These pins serve dual purposes. The user-I/O pins are temporarily borrowed during the configuration process to load
configuration data into the FPGA. After configuration, these
pins are then usually available as a user I/O in the application. If a pin is not applicable to the specific configuration
mode—controlled by the mode select pins M2, M1, and
M0—then the pin behaves as an I/O-type pin.
There are 12 dual-purpose configuration pins on every
package, six of which are part of I/O Bank 4, the other six
part of I/O Bank 5. Only a few of the pins in Bank 4 are used
in the Serial configuration modes.
See “Configuration” under Functional Description (Module 2
of the Spartan-3 data sheet).
Serial Configuration Modes
This section describes the dual-purpose pins used during
either Master or Slave Serial mode. See Table 7 for Mode
Select pin settings required for Serial modes. All such pins
are in Bank 4 and powered by VCCO_4.
In both the Master and Slave Serial modes, DIN is the serial
configuration data input. The D1-D7 inputs are unused in
serial mode and behave like general-purpose I/O pins.
In all the cases, the configuration data is synchronized to
the rising edge of the CCLK clock signal.
The DIN, DOUT, and INIT_B pins can be retained in the
application to support reconfiguration by setting the Persist
bitstream generation option. However, the serial modes do
not support device readback.
See “Pin Behavior During Configuration, page 15”.
Table 3: Dual-Purpose Pins Used in Master or Slave Serial Mode
Pin Name
DIN
Direction
Input
Description
Serial Data Input:
During the Master or Slave Serial configuration modes, DIN is the serial configuration data
input, and all data is synchronized to the rising CCLK edge. After configuration, this pin is
available as a user I/O.
This signal is located in Bank 4 and its output voltage determined by VCCO_4.
The BitGen option Persist permits this pin to retain its configuration function in the User
mode.
DOUT
Output
Serial Data Output:
In a multi-FPGA design where all the FPGAs use serial mode, connect the DOUT output of
one FPGA—in either Master or Slave Serial mode—to the DIN input of the next FPGA—in
Slave Serial mode—so that configuration data passes from one to the next, in daisy-chain
fashion. This “daisy chain” permits sequential configuration of multiple FPGAs.
This signal is located in Bank 4 and its output voltage determined by VCCO_4.
The BitGen option Persist permits this pin to retain its configuration function in the User
mode.
INIT_B
Bidirectional
(open-drain)
Initializing Configuration Memory/Configuration Error:
Just after power is applied, the FPGA produces a Low-to-High transition on this pin
indicating that initialization (i.e., clearing) of the configuration memory has finished. Before
entering the User mode, this pin functions as an open-drain output, which requires a pull-up
resistor in order to produce a High logic level. In a multi-FPGA design, tie (wire AND) the
INIT_B pins from all FPGAs together so that the common node transitions High only after
all of the FPGAs have been successfully initialized.
Externally holding this pin Low beyond the initialization phase delays the start of
configuration. This action stalls the FPGA at the configuration step just before the mode
select pins are sampled.
During configuration, the FPGA indicates the occurrence of a data (i.e., CRC) error by
asserting INIT_B Low.
This signal is located in Bank 4 and its output voltage determined by VCCO_4.
The BitGen option Persist permits this pin to retain its configuration function in the User
mode.
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Spartan-3 FPGA Family: Pinout Descriptions
I/O Bank 4 (VCCO_4)
I/O Bank 5 (VCCO_5)
High Nibble
Low Nibble
Configuration Data Byte
D0
D1
D2
D3
D4
D5
D6
D7
0xA5 =
1
0
1
0
0
1
0
1
Figure 2: Configuration Data Byte Mapping to D0-D7 Bits
Parallel Configuration Modes (SelectMAP)
This section describes the dual-purpose configuration pins
used during the Master and Slave Parallel configuration
modes, sometimes also called the SelectMAP modes. In
both Master and Slave Parallel configuration modes, D0-D7
form the byte-wide configuration data input. See Table 7 for
Mode Select pin settings required for Parallel modes.
As shown in Figure 2, D0 is the most-significant bit while D7
is the least-significant bit. Bits D0-D3 form the high nibble of
the byte and bits D4-D7 form the low nibble.
In the Parallel configuration modes, both the VCCO_4 and
VCCO_5 voltage supplies are required and must both equal
the voltage of the attached configuration device, typically
either 2.5V or 3.3V.
Assert Low both the chip-select pin, CS_B, and the
read/write control pin, RDWR_B, to write the configuration
data byte presented on the D0-D7 pins to the FPGA on a
rising-edge of the configuration clock, CCLK. The order of
8
CS_B and RDWR_B does not matter, although RDWR_B
must be asserted throughout the configuration process. If
RDWR_B is de-asserted during configuration, the FPGA
aborts the configuration operation.
After configuration, these pins are available as general-purpose user I/O. However, the SelectMAP configuration interface is optionally available for debugging and dynamic
reconfiguration. To use these SelectMAP pins after configuration, set the Persist bitstream generation option.
The Readback debugging option, for example, requires the
Persist bitstream generation option. During Readback
mode, assert CS_B Low, along with RDWR_B High, to read
a configuration data byte from the FPGA to the D0-D7 bus
on a rising CCLK edge. During Readback mode, D0-D7 are
output pins.
In all the cases, the configuration data and control signals
are synchronized to the rising edge of the CCLK clock signal.
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Table 4: Dual-Purpose Configuration Pins for Parallel (SelectMAP) Configuration Modes
Pin
Name
D0,
D1,
D2,
D3
Direction
Input during
configuration
Output during
readback
Description
Configuration Data Port (high nibble):
Collectively, the D0-D7 pins are the byte-wide configuration data port for the Parallel
(SelectMAP) configuration modes. Configuration data is synchronized to the rising edge of
CCLK clock signal.
The D0-D3 pins are the high nibble of the configuration data byte and located in Bank 4 and
powered by VCCO_4.
The BitGen option Persist permits this pin to retain its configuration function in the User mode.
D4,
D5,
D6,
D7
CS_B
Input during
configuration
Configuration Data Port (low nibble):
Output during
readback
The BitGen option Persist permits this pin to retain its configuration function in the User mode.
Input
The D4-D7 pins are the low nibble of the configuration data byte. However, these signals are
located in Bank 5 and powered by VCCO_5.
Chip Select for Parallel Mode Configuration:
Assert this pin Low, together with RDWR_B to write a configuration data byte from the D0-D7
bus to the FPGA on a rising CCLK edge.
During Readback, assert this pin Low, along with RDWR_B High, to read a configuration data
byte from the FPGA to the D0-D7 bus on a rising CCLK edge.
This signal is located in Bank 5 and powered by VCCO_5.
The BitGen option Persist permits this pin to retain its configuration function in the User mode.
CS_B
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Function
0
FPGA selected. SelectMAP inputs are valid on the next rising edge of CCLK.
1
FPGA deselected. All SelectMAP inputs are ignored.
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Spartan-3 FPGA Family: Pinout Descriptions
Table 4: Dual-Purpose Configuration Pins for Parallel (SelectMAP) Configuration Modes (Continued)
Pin
Name
Direction
RDWR_B
Input
Description
Read/Write Control for Parallel Mode Configuration:
In Master and Slave Parallel modes, assert this pin Low together with CS_B to write a
configuration data byte from the D0-D7 bus to the FPGA on a rising CCLK edge. Once
asserted during configuration, RDWR_B must remain asserted until configuration is
complete.
During Readback, assert this pin High with CS_B Low to read a configuration data byte from
the FPGA to the D0-D7 bus on a rising CCLK edge.
This signal is located in Bank 5 and powered by VCCO_5.
The BitGen option Persist permits this pin to retain its configuration function in the User mode.
RDWR_B
BUSY
Output
Function
0
If CS_B is Low, then load (write) configuration data to the FPGA.
1
This option is valid only if the Persist bitstream option is set to Yes. If CS_B is
Low, then read configuration data from the FPGA.
Configuration Data Rate Control for Parallel Mode:
In the Slave and Master Parallel modes, BUSY throttles the rate at which configuration data
is loaded. BUSY is only necessary if CCLK operates at greater than 50 MHz. Ignore BUSY
for frequencies of 50 MHz and below.
When BUSY is Low, the FPGA accepts the next configuration data byte on the next rising
CCLK edge for which CS_B and RDWR_B are Low. When BUSY is High, the FPGA ignores
the next configuration data byte. The next configuration data value must be held or reloaded
until the next rising CCLK edge when BUSY is Low. When CS_B is High, BUSY is in a high
impedance state.
BUSY
Function
0
The FPGA is ready to accept the next configuration data byte.
1
The FPGA is busy processing the current configuration data byte and is not
ready to accept the next byte.
Hi-Z
If CS_B is High, then BUSY is high impedance.
This signal is located in Bank 4 and its output voltage is determined by VCCO_4. The BitGen
option Persist permits this pin to retain its configuration function in the User mode.
INIT_B
Bidirectional
(open-drain)
Initializing Configuration Memory/Configuration Error (active-Low):
See description under Serial Configuration Modes, page 7.
JTAG Configuration Mode
In the JTAG configuration mode all dual-purpose configuration pins are unused and behave exactly like user-I/O pins,
as shown in Table 10. See Table 7 for Mode Select pin settings required for JTAG mode.
Dual-Purpose Pin I/O Standard During Configuration
During configuration, the dual-purpose pins default to
CMOS input and output levels for the associated VCCO
voltage supply pins. For example, in the Parallel configuration modes, both VCCO_4 and VCCO_5 are required. If
connected to +2.5V, then the associated pins conform to the
10
LVCMOS25 I/O standard. If connected to +3.3V, then the
pins drive LVCMOS output levels and accept either LVTTL
or LVCMOS input levels.
Dual-Purpose Pin Behavior After Configuration
After the configuration process completes, these pins, if
they were borrowed during configuration, become user-I/O
pins available to the application. If a dual-purpose configuration pin is not used during the configuration process—i.e.,
the parallel configuration pins when using serial
mode—then the pin behaves exactly like a general-purpose
I/O. See I/O Type: Unrestricted, General-purpose I/O
Pins section above.
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Spartan-3 FPGA Family: Pinout Descriptions
DCI: User I/O or Digitally Controlled
Impedance Resistor Reference Input
These pins are individual user-I/O pins unless one of the I/O
standards used in the bank requires the Digitally Controlled
Impedance (DCI) feature. If DCI is used, then 1% precision
resistors connected to the VRP_# and VRN_# pins match
the impedance on the input or output buffers of the I/O standards that use DCI within the bank.
The ‘#’ character in the pin name indicates the associated
I/O bank and is an integer, 0 through 7.
There are two DCI pins per I/O bank, except in the TQ144
package, which does not have any DCI inputs for Bank 5.
VRP and VRN Impedance Resistor Reference
Inputs
The 1% precision impedance-matching resistor attached to
the VRP_# pin controls the pull-up impedance of PMOS
transistor in the input or output buffer. Consequently, the
VRP_# pin must connect to ground. The ‘P’ character in
“VRP” indicates that this pin controls the I/O buffer’s PMOS
transistor impedance. The VRP_# pin is used for both single
and split termination.
LVDSEXT_25_DCI receivers—then both the VRP_# and
VRN_# pins connect to separate 1% precision impedance-matching resistors, as shown in Figure 3c. Neither pin
is available for user I/O.
GCLK: Global Clock Buffer Inputs or
General-Purpose I/O Pins
These pins are user-I/O pins unless they specifically connect to one of the eight low-skew global clock buffers on the
device, specified using the IBUFG primitive.
There are eight GCLK pins per device and two each appear
in the top-edge banks, Bank 0 and 1, and the bottom-edge
banks, Banks 4 and 5. See Figure 1 for a picture of bank
labeling.
During configuration, these pins behave exactly like
user-I/O pins.
CONFIG: Dedicated Configuration Pins
The dedicated configuration pins control the configuration
process and are not available as user-I/O pins. Every package has seven dedicated configuration pins. All CONFIG-type pins are powered by the +2.5V VCCAUX supply.
The 1% precision impedance-matching resistor attached to
the VRN_# pin controls the pull-down impedance of NMOS
transistor in the input or output buffer. Consequently, the
VRN_# pin must connect to VCCO. The ‘N’ character in
“VRN” indicates that this pin controls the I/O buffer’s NMOS
transistor impedance. The VRN_# pin is only used for split
termination.
See “Configuration” under Functional Description (Module 2
of the Spartan-3 data sheet).
Each VRN or VRP reference input requires its own resistor.
A single resistor cannot be shared between VRN or VRP
pins associated with different banks.
After configuration, the CCLK pin is in a high-impedance,
floating state. By default, CCLK optionally is pulled High to
VCCAUX as defined by the CclkPin bitstream selection. Any
clocks applied to CCLK after configuration are ignored
unless the bitstream option Persist is set to Yes, which
retains the configuration interface. Persist is set to No by
default. However, if Persist is set to Yes, then all clock edges
are potentially active events, depending on the other configuration control signals.
During configuration, these pins behave exactly like
user-I/O pins. The associated DCI behavior is not active or
valid until after configuration completes.
See “Digitally Controlled Impedance (DCI)” under Functional
Description (Module 2 of the Spartan-3 data sheet).
DCI Termination Types
If the I/O in an I/O bank do not use the DCI feature, then no
external resistors are required and both the VRP_# and
VRN_# pins are available for user I/O, as shown in
Figure 3a.
If the I/O standards within the associated I/O bank require
single termination—such as GTL_DCI, GTLP_DCI, or
HSTL_III_DCI—then only the VRP_# signal connects to a
1% precision impedance-matching resistor, as shown in
Figure 3b. A resistor is not required for the VRN_# pin.
Finally, if the I/O standards with the associated I/O bank
require
split
termination—such
as
HSTL_I_DCI,
SSTL2_I_DCI, SSTL2_II_DCI, or LVDS_25_DCI and
DS099-4 (v1.5) July 13, 2004
Product Specification
CCLK: Configuration Clock
The configuration clock signal on this pin synchronizes the
reading or writing of configuration data. This pin is an input
for the Slave configuration modes, both parallel and serial.
The bitstream generator option ConfigRate determines the
frequency of the internally-generated CCLK oscillator
required for the Master configuration modes. The actual frequency is approximate due to the characteristics of the silicon oscillator and varies by up to 30% over the temperature
and voltage range. By default, CCLK operates at approximately 6 MHz. Via the ConfigRate option, the oscillator frequency is set at approximately 3, 6, 12, 25, or 50 MHz. At
power-on, CCLK always starts operation at its lowest frequency. The device does not start operating at the higher
frequency until the ConfigRate control bits are loaded during the configuration process.
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Spartan-3 FPGA Family: Pinout Descriptions
One of eight
I/O Banks
One of eight
I/O Banks
One of eight
I/O Banks
VCCO
RREF (1%)
User I/O
VRN
User I/O
VRP
VRN
VRP
RREF (1%)
(a) No termination
(b) Single termination
RREF (1%)
(c) Split termination
DS099-4_03_071304
Figure 3: DCI Termination Types
PROG_B: Program/Configure Device
This asynchronous pin initiates the configuration or re-configuration processes. A Low-going pulse resets the configuration logic, initializing the configuration memory. This
initialization process cannot finish until PROG_B returns
High. Asserting PROG_B Low for an extended period
delays the configuration process. At power-up, there is
always a weak pull-up resistor to VCCAUX on this pin. After
configuration, the bitstream generator option ProgPin determines whether or not the weak pull-up resistor is present.
By default, the ProgPin option retains the weak pull-up
resistor.
After configuration, hold the PROG_B input High. Any
Low-going pulse on PROG_B restarts the configuration process.
Table 5: PROG_B Operation
PROG_B Input
Power-up
Response
Automatically initiates configuration
process.
Low-going pulse
Initiate (re-)configuration process and
continue to completion.
Extended Low
Initiate (re-)configuration process and
stall process at step where
configuration memory is cleared.
Process is stalled until PROG_B
returns High.
1
12
If the configuration process is started,
continue to completion. If
configuration process is complete,
stay in User mode.
DONE: Configuration Done, Delay Start-Up
Sequence
The FPGA produces a Low-to-High transition on this pin
indicating that the configuration process is complete. The
bitstream generator option DriveDone determines whether
this pin functions as a totem-pole output that can drive High
or as an open-drain output. If configured as an open-drain
output—which is the default behavior—then a pull-up resistor is required to produce a High logic level. There is a bitstream option that provides an internal weak pull-up
resistor, otherwise an external pull-up resistor is required.
The open-drain option permits the DONE lines of multiple
FPGAs to be tied together, so that the common node transitions High only after all of the FPGAs have completed configuration. Externally holding the open-drain DONE pin Low
delays the start-up sequence, which marks the transition to
user mode.
Once the FPGA enters User mode after completing configuration, the DONE pin no longer drives the DONE pin Low.
The bitstream generator option DonePin determines
whether or not a weak pull-up resistor is present on the
DONE pin to pull the pin to VCCAUX. If the weak pull-up
resistor is eliminated, then the DONE pin must be pulled
High using an external pull-up resistor or one of the FPGAs
in the design must actively drive the DONE pin High via the
DriveDone bitstream generator option.
The bitstream generator option DriveDone causes the
FPGA to actively drive the DONE output High after configuration. This option should only be used in single-FPGA
designs or on the last FPGA in a multi-FPGA daisy-chain.
By default, the bitstream generator software retains the
weak pull-up resistor and does not actively drive the DONE
pin as highlighted in Table 6. Table 6 shows the interaction
of these bitstream options in single- and multi-FPGA
designs.
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Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
Table 6: DonePin and DriveDone Bitstream Option Interaction
DonePin
DriveDone
Single- or MultiFPGA Design
Pullnone
No
Single
External pull-up resistor, with value between 330Ω to 3.3kΩ, required on
DONE.
Pullnone
No
Multi
External pull-up resistor, with value between 330Ω to 3.3kΩ, required on
common node connecting to all DONE pins.
Pullnone
Yes
Single
Pullnone
Yes
Multi
DriveDone on last device in daisy-chain only. No external requirements.
Pullup
No
Single
OK, but weak pull-up on DONE pin has slow rise time. May require 330 Ω
pull-up resistor for high CCLK frequencies.
Pullup
No
Multi
External pull-up resistor, with value between 330Ω to 3.3kΩ, required on
common node connecting to all DONE pins.
Pullup
Yes
Single
Pullup
Yes
Multi
Comments
OK, no external requirements.
OK, no external requirements.
DriveDone on last device in daisy-chain only. No external requirements.
M2, M1, M0: Configuration Mode Selection
These inputs select the mode to configure the FPGA. The
logic levels applied to the mode pins are sampled on the rising edge of INIT_B.
completes. A High disables the weak pull-up resistors (during configuration, which is the desired state for some applications.
Table 8: HSWAP_EN Encoding
Table 7: Spartan-3 Configuration Mode Select Settings
Configuration Mode
M2
M1
M0
Master Serial
0
0
0
Slave Serial
1
1
1
Master Parallel
0
1
1
Slave Parallel
1
1
0
JTAG
1
0
1
Reserved
0
0
1
Reserved
0
1
0
Reserved
1
0
0
After Configuration
X
X
X
Notes:
1. X = don’t care, either 0 or 1.
In user mode, after configuration successfully completes,
any levels applied to these input are ignored. Each of the
bitstream generator options M0Pin, M1Pin, and M2Pin
determines whether a weak pull-up resistor, weak pull-down
resistor, or no resistor is present on its respective mode pin,
M0, M1, or M2.
HSWAP_EN: Disable Weak Pull-up Resistors During Configuration
A Low on this asynchronous pin enables weak pull-up resistors on all user I/Os, although only until device configuration
DS099-4 (v1.5) July 13, 2004
Product Specification
HSWAP_EN
Function
During Configuration
0
Enable weak pull-up resistors on all pins
not actively involved in the configuration
process. Pull-ups are only active until
configuration completes. See Table 10.
1
No pull-up resistors during configuration.
After Configuration, User Mode
X
This pin has no function except during
device configuration.
Notes:
1. X = don’t care, either 0 or 1.
After configuration, HSWAP_EN essentially becomes a
"don’t care" input and any pull-up resistors previously
enabled by HSWAP_EN are disabled. If a user I/O in the
application requires a weak pull-up resistor after configuration, place a PULLUP primitive on the associated I/O pin.
The Bitstream generator option HswapenPin determines
whether a weak pull-up resistor to VCCAUX, a weak
pull-down resistor, or no resistor is present on HSWAP_EN
after configuration.
JTAG: Dedicated JTAG Port Pins
These pins are dedicated connections to the four-wire IEEE
1532/IEEE 1149.1 JTAG port, shown in Figure 4 and
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Spartan-3 FPGA Family: Pinout Descriptions
described in Table 9. The JTAG port is used for boundary-scan testing, device configuration, application debugging, and possibly an additional serial port for the
application. These pins are dedicated and are not available
as user-I/O pins. Every package has four dedicated JTAG
pins and these pins are powered by the +2.5V VCCAUX
supply.
Data In
TMS
Mode Select
TCK
Data Out
The following interface precautions are recommended when
connecting the JTAG port to a 3.3V interface.
1. Set any inactive JTAG signals, including TCK, Low
when not actively used.
JTAG Port
TDI
resistor. Similarly, the TDO pin is a CMOS output powered
from +2.5V. The TDO output can directly drive a 3.3V input
but with reduced noise immunity. See the "3.3V-Tolerant
Configuration Interface" section in Module 2 for additional
details.
2. Limit the drive current into a JTAG input to no more than
10 mA.
TDO
VREF: User I/O or Input Buffer Reference
Voltage for Special Interface Standards
Clock
DS099-4_04_042103
Figure 4: JTAG Port
Using JTAG Port After Configuration
The JTAG port is always active and available before, during,
and after FPGA configuration. Add the BSCAN_SPARTAN3
primitive to the design to create user-defined JTAG instructions and JTAG chains to communicate with internal logic.
These pins are individual user-I/O pins unless collectively
they supply an input reference voltage, VREF_#, for any
SSTL, HSTL, GTL, or GTLP I/Os implemented in the associated I/O bank.
The ‘#’ character in the pin name represents an integer, 0
through 7, that indicates the associated I/O bank.
The VREF function becomes active for this pin whenever a
signal standard requiring a reference voltage is used in the
associated bank.
Furthermore, the contents of the User ID register within the
JTAG port can be specified as a Bitstream Generation
option. By default, the 32-bit User ID register contains
0xFFFFFFFF.
If used as a user I/O, then each pin behaves as an independent I/O described in the I/O type section. If used for a reference voltage within a bank, then all VREF pins within the
bank must be connected to the same reference voltage.
Precautions When Using the JTAG Port in 3.3V
Environments
Spartan-3 devices are designed and characterized to support certain I/O standards when VREF is connected to
+1.25V, +1.10V, +1.00V, +0.90V, +0.80V, and +0.75V.
The JTAG port is powered by the +2.5V VCCAUX power
supply. When connecting to a 3.3V interface, the JTAG input
pins must be current-limited to 10 mA or less using a series
During configuration, these pins behave exactly like
user-I/O pins.
Table 9: JTAG Pin Descriptions
Pin Name
Direction
TCK
Input
Test Clock: The TCK clock signal synchronizes all
boundary scan operations on its rising edge.
The BitGen option TckPin
determines whether a weak pull-up
resistor, weak pull-down resistor or
no resistor is present.
TDI
Input
Test Data Input: TDI is the serial data input for all JTAG
instruction and data registers. This input is sampled on
the rising edge of TCK.
The BitGen option TdiPin
determines whether a weak pull-up
resistor, weak pull-down resistor or
no resistor is present.
TMS
Input
Test Mode Select: The TMS input controls the
sequence of states through which the JTAG TAP state
machine passes. This input is sampled on the rising
edge of TCK.
The BitGen option TmsPin
determines whether a weak pull-up
resistor, weak pull-down resistor or
no resistor is present.
TDO
Output
Test Data Output: The TDO pin is the data output for
all JTAG instruction and data registers. This output is
sampled on the rising edge of TCK. The TDO output is
an active totem-pole driver and is not like the
open-collector TDO output on Virtex-II Pro™ FPGAs.
The BitGen option TdoPin
determines whether a weak pull-up
resistor, weak pull-down resistor or
no resistor is present.
14
Description
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Bitstream Generation Option
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Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
If designing for footprint compatibility across the range of
devices in a specific package, and if the VREF_# pins within
a bank connect to an input reference voltage, then also connect any N.C. (not connected) pins on the smaller devices in
that package to the input reference voltage. More details are
provided later for each package type.
N.C. Type: Unconnected Package Pins
Pins marked as “N.C.” are unconnected for the specific
device/package combination. For other devices in this same
package, this pin may be used as an I/O or VREF connection. In both the pinout tables and the footprint diagrams,
unconnected pins are noted with either a black diamond
symbol (‹) or a black square symbol („).
from the VCCINT voltage supply inputs. VCCINT must be
+1.2V.
All VCCINT inputs must be connected together and to the
+1.2V voltage supply. Furthermore, there must be sufficient
supply decoupling to guarantee problem-free operation, as
described in XAPP623: Power Distribution System (PDS)
Design: Using Bypass/Decoupling Capacitors.
VCCAUX Type: Voltage Supply for Auxiliary
Logic
The VCCAUX pins supply power to various auxiliary circuits, such as to the Digital Clock Managers (DCMs), the
JTAG pins, and to the dedicated configuration pins (CONFIG type). VCCAUX must be +2.5V.
If designing for footprint compatibility across multiple device
densities, check the pin types of the other Spartan-3
devices available in the same footprint. If the N.C. pin
matches to VREF pins in other devices, and the VREF pins
are used in the associated I/O bank, then connect the N.C.
to the VREF voltage source.
All VCCAUX inputs must be connected together and to the
+2.5V voltage supply. Furthermore, there must be sufficient
supply decoupling to guarantee problem-free operation, as
described in XAPP623: Power Distribution System (PDS)
Design: Using Bypass/Decoupling Capacitors.
VCCO Type: Output Voltage Supply for I/O
Bank
Because VCCAUX connects to the DCMs and the DCMs
are sensitive to voltage changes, be sure that the VCCAUX
supply and the ground return paths are designed for low
noise and low voltage drop, especially that caused by a
large number of simultaneous switching I/Os.
Each I/O bank has its own set of voltage supply pins that
determines the output voltage for the output buffers in the
I/O bank. Furthermore, for some I/O standards such as
LVCMOS, LVCMOS25, LVTTL, etc., VCCO sets the input
threshold voltage on the associated input buffers.
Spartan-3 devices are designed and characterized to support various I/O standards for VCCO values of +1.2V, +1.5V,
+1.8V, +2.5V, and +3.3V.
Most VCCO pins are labeled as VCCO_# where the ‘#’
symbol represents the associated I/O bank number, an integer ranging from 0 to 7. In the 144-pin TQFP package
(TQ144) however, the VCCO pins along an edge of the
device are combined into a single VCCO input. For example, the VCCO inputs for Bank 0 and Bank 1 along the top
edge of the package are combined and relabeled
VCCO_TOP. The bottom, left, and right edges are similarly
combined.
In Serial configuration mode, VCCO_4 must be at a level
compatible with the attached configuration memory or data
source. In Parallel configuration mode, both VCCO_4 and
VCCO_5 must be at the same compatible voltage level.
All VCCO inputs to a bank must be connected together and
to the voltage supply. Furthermore, there must be sufficient
supply decoupling to guarantee problem-free operation, as
described in XAPP623: Power Distribution System (PDS)
Design: Using Bypass/Decoupling Capacitors.
VCCINT Type: Voltage Supply for Internal
Core Logic
GND Type: Ground
All GND pins must be connected and have a low resistance
path back to the various VCCO, VCCINT, and VCCAUX
supplies.
Pin Behavior During Configuration
Table 10 shows how various pins behave during the FPGA
configuration process. The actual behavior depends on the
values applied to the M2, M1, and M0 mode select pins and
the HSWAP_EN pin. The mode select pins determine which
of the DUAL type pins are active during configuration. In
JTAG configuration mode, none of the DUAL-type pins are
used for configuration and all behave as user-I/O pins.
All DUAL-type pins not actively used during configuration
and all I/O-type, DCI-type, VREF-type, GCLK-type pins are
high impedance (floating, three-stated, Hi-Z) during the
configuration process. These pins are indicated in Table 10
as shaded table entries or cells. These pins have a weak
pull-up resistor to their associated VCCO if the HSWAP_EN
pin is Low.
After configuration completes, some pins have optional
behavior controlled by the configuration bitstream loaded
into the part. For example, via the bitstream, all unused I/O
pins can collectively be configured to have a weak pull-up
resistor, a weak pull-down resistor, or be left in a
high-impedance state.
Internal core logic circuits such as the configurable logic
blocks (CLBs) and programmable interconnect operate
DS099-4 (v1.5) July 13, 2004
Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
Table 10: Pin Behavior After Power-Up, During Configuration
Configuration Mode Settings <M2:M1:M0>
Serial Modes
Pin Name
Master
<0:0:0>
Slave
<1:1:1>
SelectMap Parallel Modes
Master
<0:1:1>
Slave
<1:1:0>
JTAG Mode
<1:0:1>
Bitstream
Configuration
Option
I/O: General-purpose I/O pins
IO
UnusedPin
IO_Lxxy_#
UnusedPin
DUAL: Dual-purpose configuration pins
IO_Lxxy_#/
DIN/D0
D0 (I/O)
D0 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D1
D1 (I/O)
D1 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D2
D2 (I/O)
D2 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D3
D3 (I/O)
D3 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D4
D4 (I/O)
D4 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D5
D5 (I/O)
D5 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D6
D6 (I/O)
D6 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
D7
D7 (I/O)
D7 (I/O)
Persist
UnusedPin
IO_Lxxy_#/
CS_B
CS_B (I)
CS_B (I)
Persist
UnusedPin
IO_Lxxy_#/
RDWR_B
RDWR_B (I)
RDWR_B (I)
Persist
UnusedPin
IO_Lxxy_#/
BUSY/DOUT
IO_Lxxy_#/
INIT_B
DIN (I)
DIN (I)
DOUT (O)
DOUT (O)
BUSY (O)
BUSY (O)
Persist
UnusedPin
INIT_B (I/OD)
INIT_B (I/OD)
INIT_B (I/OD)
INIT_B (I/OD)
UnusedPin
DCI: Digitally Controlled Impedance reference resistor input pins
IO_Lxxy_#/
VRN_#
UnusedPin
IO/VRN_#
UnusedPin
IO_Lxxy_#/
VRP_#
UnusedPin
IO/VRP_#
UnusedPin
16
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Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
Table 10: Pin Behavior After Power-Up, During Configuration (Continued)
Configuration Mode Settings <M2:M1:M0>
Serial Modes
Pin Name
Master
<0:0:0>
Slave
<1:1:1>
SelectMap Parallel Modes
Master
<0:1:1>
Slave
<1:1:0>
JTAG Mode
<1:0:1>
Bitstream
Configuration
Option
GCLK: Global clock buffer inputs
IO_Lxxy_#/
GCLK0 through
GCLK7
UnusedPin
VREF: I/O bank input reference voltage pins
IO_Lxxy_#/
VREF_#
UnusedPin
IO/VREF_#
UnusedPin
CONFIG: Dedicated configuration pins
CCLK
CCLK (O)
CCLK (I)
CCLK (O)
CCLK (I)
PROG_B
PROG_B (I)
(pull-up)
PROG_B (I)
(pull-up)
PROG_B (I)
(pull-up)
PROG_B (I)
(pull-up)
PROG_B (I),
Via JPROG_B
instruction
ProgPin
DONE
DONE (I/OD)
DONE (I/OD)
DONE (I/OD)
DONE (I/OD)
DONE (I/OD)
DriveDone
DonePin
DonePipe
M2
M2=0 (I)
M2=1 (I)
M2=0 (I)
M2=1 (I)
M2=1 (I)
M2Pin
M1
M1=0 (I)
M1=1 (I)
M1=1 (I)
M1=1 (I)
M1=0 (I)
M1Pin
M0
M0=0 (I)
M0=1 (I)
M0=1 (I)
M0=0 (I)
M0=1 (I)
M0Pin
HSWAP_EN
(I)
HSWAP_EN
(I)
HSWAP_EN
(I)
HSWAP_EN
(I)
HSWAP_EN
(I)
HswapenPin
HSWAP_EN
CclkPin
ConfigRate
JTAG: JTAG interface pins
TDI
TDI (I)
TDI (I)
TDI (I)
TDI (I)
TDI (I)
TdiPin
TMS
TMS (I)
TMS (I)
TMS (I)
TMS (I)
TMS (I)
TmsPin
TCK
TCK (I)
TCK (I)
TCK (I)
TCK (I)
TCK (I)
TckPin
TDO
TDO (O)
TDO (O)
TDO (O)
TDO (O)
TDO (O)
TdoPin
VCCO: I/O bank output voltage supply pins
VCCO_4
(for DUAL pins)
Same voltage
as external
interface
Same voltage
as external
interface
Same voltage
as external
interface
Same voltage
as external
interface
VCCO_4
VCCO_5
(for DUAL pins)
VCCO_5
VCCO_5
Same voltage
as external
interface
Same voltage
as external
interface
VCCO_5
VCCO_#
VCCO_#
VCCO_#
VCCO_#
VCCO_#
VCCO_#
+2.5V
+2.5V
+2.5V
VCCAUX: Auxiliary voltage supply pins
VCCAUX
+2.5V
DS099-4 (v1.5) July 13, 2004
Product Specification
+2.5V
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Spartan-3 FPGA Family: Pinout Descriptions
Table 10: Pin Behavior After Power-Up, During Configuration (Continued)
Configuration Mode Settings <M2:M1:M0>
Serial Modes
Pin Name
Master
<0:0:0>
Slave
<1:1:1>
SelectMap Parallel Modes
Master
<0:1:1>
Slave
<1:1:0>
JTAG Mode
<1:0:1>
+1.2V
+1.2V
+1.2V
+1.2V
GND
GND
GND
GND
Bitstream
Configuration
Option
VCCINT: Internal core voltage supply pins
VCCINT
+1.2V
GND: Ground supply pins
GND
GND
Notes:
1. #= I/O bank number, an integer from 0 to 7.
2. (I) = input, (O) = output, (OD) = open-drain output, (I/O) = bidirectional, (I/OD) = bidirectional with open-drain output. Open-drain
output requires pull-up to create logic High level.
3.
Shaded cell indicates that the pin is high-impedance during configuration. To enable a soft pull-up resistor during configuration,
drive or tie HSWAP_EN Low.
Bitstream Options
Table 11 lists the various bitstream options that affect pins
on a Spartan-3 FPGA. The table shows the names of the
affected pins, describes the function of the bitstream option,
the name of the bitstream generator option variable, and the
legal values for each variable. The default option setting for
each variable is indicated with bold, underlined text.
Table 11: Bitstream Options Affecting Spartan-3 Pins
Affected Pin
Name(s)
Bitstream Generation Function
Option
Variable
Name
Values
(default
value)
All unused I/O pins of
type I/O, DUAL,
GCLK, DCI, VREF
For all I/O pins that are unused after configuration, this option
defines whether the I/Os are individually tied to VCCO via a weak
pull-up resistor, tied ground via a weak pull-down resistor, or left
floating. If left floating, the unused pins should be connected to a
defined logic level, either from a source internal to the FPGA or
external.
UnusedPin
•
•
•
Pulldown
Pullup
Pullnone
IO_Lxxy_#/DIN,
IO_Lxxy_#/DOUT,
IO_Lxxy_#/INIT_B
Serial configuration mode: If set to Yes, then these pins retain their
functionality after configuration completes, allowing for device
(re-)configuration. Readback is not supported in with serial mode.
Persist
•
•
No
Yes
IO_Lxxy_#/D0,
IO_Lxxy_#/D1,
IO_Lxxy_#/D2,
IO_Lxxy_#/D3,
IO_Lxxy_#/D4,
IO_Lxxy_#/D5,
IO_Lxxy_#/D6,
IO_Lxxy_#/D7,
IO_Lxxy_#/CS_B,
IO_Lxxy_#/RDWR_B,
IO_Lxxy_#/BUSY,
IO_Lxxy_#/INIT_B
Parallel configuration mode (also called SelectMAP): If set to Yes,
then these pins retain their SelectMAP functionality after
configuration completes, allowing for device readback and for
partial or complete (re-)configuration.
Persist
•
•
No
Yes
CCLK
After configuration, this bitstream option either pulls CCLK to
VCCAUX via a weak pull-up resistor, or allows CCLK to float.
CclkPin
•
•
Pullup
Pullnone
CCLK
For Master configuration modes, this option sets the approximate
frequency, in MHz, for the internal silicon oscillator.
18
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ConfigRate
3, 6, 12, 25,
50
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 11: Bitstream Options Affecting Spartan-3 Pins (Continued)
Affected Pin
Name(s)
Bitstream Generation Function
Option
Variable
Name
Values
(default
value)
PROG_B
A weak pull-up resistor to VCCAUX exists on PROG_B during
configuration. After configuration, this bitstream option either
pulls DONE to VCCAUX via a weak pull-up resistor, or allows
DONE to float.
ProgPin
•
•
Pullup
Pullnone
DONE
After configuration, this bitstream option either pulls DONE to
VCCAUX via a weak pull-up resistor, or allows DONE to float. See
also DriveDone option.
DonePin
•
•
Pullup
Pullnone
DONE
If set to Yes, this option allows the FPGA’s DONE pin to drive High
when configuration completes. By default, the DONE is an
open-drain output and can only drive Low. Only single FPGAs and
the last FPGA in a multi-FPGA daisy-chain should use this option.
DriveDone
•
•
No
Yes
M2
After configuration, this bitstream option either pulls M2 to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows M2 to float.
M1
After configuration, this bitstream option either pulls M1 to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows M1 to float.
M0
After configuration, this bitstream option either pulls M0 to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows M0 to float.
HSWAP_EN
After configuration, this bitstream option either pulls HSWAP_EN
to VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows HSWAP_EN to float.
TDI
After configuration, this bitstream option either pulls TDI to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows TDI to float.
TMS
After configuration, this bitstream option either pulls TMS to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows TMS to float.
TCK
After configuration, this bitstream option either pulls TCK to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows TCK to float.
TDO
After configuration, this bitstream option either pulls TDO to
VCCAUX via a weak pull-up resistor, to ground via a weak
pull-down resistor, or allows TDO to float.
Setting Options via BitGen Command-Line
Program
To set one or more bitstream generator options using the
BitGen command-line program, enter
bitgen –g <variable_name>:<value>
[<variable_name>:<value> …]
•
•
•
•
M1Pin
•
•
•
M0Pin
•
•
•
HswapenPin
•
•
•
TdiPin
•
•
•
TmsPin
•
•
•
TckPin
•
•
•
TdoPin
•
•
M2Pin
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
Pullup
Pulldown
Pullnone
where <variable_name> is one of the entries from
Table 11 and <value> is one of the possible values for the
specified variable. Multiple bitstream options may be
entered in this manner.
For a complete listing of all BitGen options, their possible
settings, and their default settings, enter the following command.
bitgen -help spartan3
DS099-4 (v1.5) July 13, 2004
Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
Setting Options in Project Navigator
To set the bitstream generation options in Xilinx ISE Project
Navigator, right-click on the Generate Programming File
step in the Process View and click Properties, as shown in
Figure 5.
Click the Configuration options tab and modify the available options as required by the application, as shown in
Figure 6.
DS099-4_05_030103
Figure 5: Setting Properties for Generate Programming File Step
DS099-4_06_030103
Figure 6: Configuration Option Settings
20
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
DS099-4_07_030103
Figure 7: Setting to Drive DONE Pin High after Configuration
To have the DONE pin drive High after successful configuration, click the Startup options tab and check the Drive
Done Pin High box, as shown in Figure 7.
Click OK when finished.
Again, right-click on the Generate Programming File step
in the Process View. This time, choose Run or Rerun to
execute the changes.
Package Overview
Table 12 shows the nine low-cost, space-saving production
package styles for the Spartan-3 family. Each package style
is available as a standard and an environmentally-friendly
lead-free (Pb-free) option. The Pb-free packages include an
extra ’G’ in the package style name. For example, the standard "VQ100" package becomes "VQG100" when ordered
as the Pb-free option. The mechanical dimensions of the
standard and Pb-free packages are similar, as shown in the
mechanical drawings provided in Table 13.
Not all Spartan-3 densities are available in all packages.
However, for a specific package there is a common footprint
for that supports the various devices available in that package. See the footprint diagrams that follow.
Table 12: Spartan-3 Family Package Options
Maximum
I/O
Pitch
(mm)
Area
(mm)
Height
(mm)
Very-thin Quad Flat Pack
63
0.5
16 x 16
1.20
144
Thin Quad Flat Pack
97
0.5
22 x 22
1.60
PQ208 / PQG208
208
Quad Flat Pack
141
0.5
30.6 x 30.6
4.10
FT256 / FTG256
256
Fine-pitch, Thin Ball Grid Array
173
1.0
17 x 17
1.55
FG320 / FGG320
320
Fine-pitch Ball Grid Array
221
1.0
19 x 19
2.00
FG456 / FGG456
456
Fine-pitch Ball Grid Array
333
1.0
23 x 23
2.60
FG676 / FGG676
676
Fine-pitch Ball Grid Array
489
1.0
27 x 27
2.60
FG900 / FGG900
900
Fine-pitch Ball Grid Array
633
1.0
31 x 31
2.60
FG1156 / FGG1156
1156
Fine-pitch Ball Grid Array
784
1.0
35 x 35
2.60
Package
Leads
VQ100 / VQG100
100
TQ144 / TQG144
DS099-4 (v1.5) July 13, 2004
Product Specification
Type
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Spartan-3 FPGA Family: Pinout Descriptions
Detailed mechanical drawings for each package type are
available from the Xilinx website at the specified location in
Table 13.
Table 13: Xilinx Package Mechanical Drawings
Package
Web Link (URL)
VQ100 / VQG100
http://www.xilinx.com/bvdocs/packages/vq100.pdf
TQ144 / TQG144
http://www.xilinx.com/bvdocs/packages/tq144.pdf
PQ208 / PQG208
http://www.xilinx.com/bvdocs/packages/pq208.pdf
FT256 / FTG256
http://www.xilinx.com/bvdocs/packages/ft256.pdf
FG320 / FGG320
http://www.xilinx.com/bvdocs/packages/fg320.pdf
FG456 / FGG456
http://www.xilinx.com/bvdocs/packages/fg456.pdf
FG676 / FGG676
http://www.xilinx.com/bvdocs/packages/fg676.pdf
FG900 /FGG900
http://www.xilinx.com/bvdocs/packages/fg900.pdf
FG1156 / FGG1156
http://www.xilinx.com/bvdocs/packages/fg1156.pdf
Each package has three separate voltage supply
inputs—VCCINT, VCCAUX, and VCCO—and a common
ground return, GND. The numbers of pins dedicated to
these functions varies by package, as shown in Table 14.
Table 14: Power and Ground Supply Pins by Package
Package
VCCINT
VCCAUX
VCCO
GND
VQ100
4
4
8
10
TQ144
4
4
12
16
PQ208
4
8
12
28
FT256
8
8
24
32
FG320
12
8
28
40
FG456
12
8
40
52
FG676
20
16
64
76
FG900
32
24
80
120
FG1156
40
32
104
184
22
A majority of package pins are user-defined I/O pins. However, the numbers and characteristics of these I/O depends
on the device type and the package in which it is available,
as shown in Table 15. The table shows the maximum number of single-ended I/O pins available, assuming that all
I/O-, DUAL-, DCI-, VREF-, and GCLK-type pins are used as
general-purpose I/O. Likewise, the table shows the maximum number of differential pin-pairs available on the package. Finally, the table shows how the total maximum user
I/Os are distributed by pin type, including the number of
unconnected—i.e., N.C.—pins on the device.
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Spartan-3 FPGA Family: Pinout Descriptions
Table 15: Maximum User I/Os by Package
All Possible I/O Pins by Type
Maximum
Differential
Pairs
I/O
DUAL
DCI
VREF
GCLK
N.C.
Device
Package
Maximum
User I/Os
XC3S50
VQ100
63
29
22
12
14
7
8
0
XC3S200
VQ100
63
29
22
12
14
7
8
0
XC3S50
TQ144
97
46
51
12
14
12
8
0
XC3S200
TQ144
97
46
51
12
14
12
8
0
XC3S400
TQ144
97
46
51
12
14
12
8
0
XC3S50
PQ208
124
56
72
12
16
16
8
17
XC3S200
PQ208
141
62
83
12
16
22
8
0
XC3S400
PQ208
141
62
83
12
16
22
8
0
XC3S200
FT256
173
76
113
12
16
24
8
0
XC3S400
FT256
173
76
113
12
16
24
8
0
XC3S1000
FT256
173
76
113
12
16
24
8
0
XC3S400
FG320
221
100
156
12
16
29
8
0
XC3S1000
FG320
221
100
156
12
16
29
8
0
XC3S1500
FG320
221
100
156
12
16
29
8
0
XC3S400
FG456
264
116
196
12
16
32
8
69
XC3S1000
FG456
333
149
261
12
16
36
8
0
XC3S1500
FG456
333
149
261
12
16
36
8
0
XC3S1000
FG676
391
175
315
12
16
40
8
98
XC3S1500
FG676
487
221
403
12
16
48
8
2
XC3S2000
FG676
489
221
405
12
16
48
8
0
XC3S2000
FG900
565
270
481
12
16
48
8
68
XC3S4000
FG900
633
300
549
12
16
48
8
0
XC3S5000
FG900
633
300
549
12
16
48
8
0
XC3S4000
FG1156
712
312
621
12
16
55
8
73
XC3S5000
FG1156
784
344
692
12
16
56
8
1
Electronic versions of the package pinout tables and footprints are available for download from the Xilinx website.
Using a spreadsheet program, the data can be sorted and
reformatted according to any specific needs. Similarly, the
DS099-4 (v1.5) July 13, 2004
Product Specification
ASCII-text file is easily parsed by most scripting programs.
Download the files from the following location:
http://www.xilinx.com/bvdocs/publications/s3_pin.zip
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Spartan-3 FPGA Family: Pinout Descriptions
VQ100: 100-lead Very-thin Quad Flat
Package
The XC3S50 and the XC3S200 devices are available in the
100-lead very-thin quad flat package, VQ100. Both devices
share a common footprint for this package as shown in
Table 16 and Figure 8.
All the package pins appear in Table 16 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
Table 16: VQ100 Package Pinout
XC3S50
XC3S200
Pin Name
VQ100 Pin
Number
Type
IO_L24P_3
P60
I/O
3
IO_L40N_3/VREF_3
P63
VREF
3
IO_L40P_3
P62
I/O
3
VCCO_3
P57
VCCO
4
IO_L01N_4/VRP_4
P50
DCI
4
IO_L01P_4/VRN_4
P49
DCI
Bank
3
4
IO_L27N_4/DIN/D0
P48
DUAL
Pinout Table
4
IO_L27P_4/D1
P47
DUAL
Table 16: VQ100 Package Pinout
4
IO_L30N_4/D2
P44
DUAL
4
IO_L30P_4/D3
P43
DUAL
4
IO_L31N_4/INIT_B
P42
DUAL
4
IO_L31P_4/DOUT/BUSY
P40
DUAL
4
IO_L32N_4/GCLK1
P39
GCLK
4
IO_L32P_4/GCLK0
P38
GCLK
4
VCCO_4
P46
VCCO
5
IO_L01N_5/RDWR_B
P28
DUAL
5
IO_L01P_5/CS_B
P27
DUAL
5
IO_L28N_5/D6
P32
DUAL
5
IO_L28P_5/D7
P30
DUAL
5
IO_L31N_5/D4
P35
DUAL
5
IO_L31P_5/D5
P34
DUAL
XC3S50
XC3S200
Pin Name
Bank
24
VQ100 Pin
Number
Type
0
IO_L01N_0/VRP_0
P97
DCI
0
IO_L01P_0/VRN_0
P96
DCI
0
IO_L31N_0
P92
I/O
0
IO_L31P_0/VREF_0
P91
VREF
0
IO_L32N_0/GCLK7
P90
GCLK
0
IO_L32P_0/GCLK6
P89
GCLK
0
VCCO_0
P94
VCCO
1
IO
P81
I/O
1
IO_L01N_1/VRP_1
P80
DCI
1
IO_L01P_1/VRN_1
P79
DCI
1
IO_L31N_1/VREF_1
P86
VREF
1
IO_L31P_1
P85
I/O
1
IO_L32N_1/GCLK5
P88
GCLK
1
IO_L32P_1/GCLK4
P87
GCLK
1
VCCO_1
P83
VCCO
2
IO_L01N_2/VRP_2
P75
DCI
2
IO_L01P_2/VRN_2
P74
DCI
2
IO_L21N_2
P72
I/O
2
IO_L21P_2
P71
I/O
2
IO_L24N_2
P68
I/O
2
IO_L24P_2
P67
I/O
2
IO_L40N_2
P65
I/O
2
IO_L40P_2/VREF_2
P64
VREF
2
VCCO_2
P70
VCCO
3
IO
P55
I/O
3
IO
P59
I/O
3
IO_L01N_3/VRP_3
P54
DCI
3
IO_L01P_3/VRN_3
P53
DCI
3
IO_L24N_3
P61
I/O
5
IO_L32N_5/GCLK3
P37
GCLK
5
IO_L32P_5/GCLK2
P36
GCLK
5
VCCO_5
P31
VCCO
6
IO
P17
I/O
6
IO
P21
I/O
6
IO_L01N_6/VRP_6
P23
DCI
6
IO_L01P_6/VRN_6
P22
DCI
6
IO_L24N_6/VREF_6
P16
VREF
6
IO_L24P_6
P15
I/O
6
IO_L40N_6
P14
I/O
6
IO_L40P_6/VREF_6
P13
VREF
6
VCCO_6
P19
VCCO
7
IO_L01N_7/VRP_7
P2
DCI
7
IO_L01P_7/VRN_7
P1
DCI
7
IO_L21N_7
P5
I/O
7
IO_L21P_7
P4
I/O
7
IO_L23N_7
P9
I/O
7
IO_L23P_7
P8
I/O
7
IO_L40N_7/VREF_7
P12
VREF
7
IO_L40P_7
P11
I/O
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Spartan-3 FPGA Family: Pinout Descriptions
Table 16: VQ100 Package Pinout
XC3S50
XC3S200
Pin Name
Bank
7
VCCO_7
Table 16: VQ100 Package Pinout
VQ100 Pin
Number
Type
Bank
P6
VCCO
N/A
XC3S50
XC3S200
Pin Name
VCCINT
VQ100 Pin
Number
Type
P93
VCCINT
N/A
GND
P3
GND
VCCAUX
CCLK
P52
CONFIG
N/A
GND
P10
GND
VCCAUX
DONE
P51
CONFIG
N/A
GND
P20
GND
VCCAUX
HSWAP_EN
P98
CONFIG
N/A
GND
P29
GND
VCCAUX
M0
P25
CONFIG
N/A
GND
P41
GND
VCCAUX
M1
P24
CONFIG
N/A
GND
P56
GND
VCCAUX
M2
P26
CONFIG
N/A
GND
P66
GND
VCCAUX
PROG_B
P99
CONFIG
N/A
GND
P73
GND
VCCAUX
TCK
P77
JTAG
N/A
GND
P82
GND
VCCAUX
TDI
P100
JTAG
N/A
GND
P95
GND
VCCAUX
TDO
P76
JTAG
N/A
VCCAUX
P7
VCCAUX
VCCAUX
TMS
P78
JTAG
N/A
VCCAUX
P33
VCCAUX
N/A
VCCAUX
P58
VCCAUX
N/A
VCCAUX
P84
VCCAUX
N/A
VCCINT
P18
VCCINT
N/A
VCCINT
P45
VCCINT
N/A
VCCINT
P69
VCCINT
User I/Os by Bank
Table 17 indicates how the available user-I/O pins are distributed between the eight I/O banks on the VQ100 package.
Table 17: User I/Os Per Bank in VQ100 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
6
1
0
2
1
2
1
7
2
0
2
1
2
2
8
5
0
2
1
0
3
8
5
0
2
1
0
4
10
0
6
2
0
2
5
8
0
6
0
0
2
6
8
4
0
2
2
0
7
8
5
0
2
1
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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Spartan-3 FPGA Family: Pinout Descriptions
IO_L01P_7/VRN_7
1
IO_L01N_7/VRP_7
2
GND
IO_L21P_7
IO_L21N_7
IO
IO_L01N_1/VRP_1
IO_L01P_1/VRN_1
TMS
TCK
TDO
80
79
78
77
76
IO_L31P_1
85
GND
IO_L31N_1/VREF_1
86
81
IO_L32P_1/GCLK4
87
VCCO_1
IO_L32N_1/GCLK5
88
82
IO_L32P_0/GCLK6
89
VCCAUX
IO_L32N_0/GCLK7
90
83
IO_L31P_0/VREF_0
91
Bank 0
84
IO_L31N_0
92
GN D
95
VCCINT
IO_L01P_0/VRN_0
96
VCCO_0
IO_L01N_0/VRP_0
97
93
HSWAP_EN
98
94
PROG_B
99
100 TDI
VQ100 Footprint
75
Bank 1
IO_L01N_2/VRP_2
IO_L01P_2/VRN_2
3
73
GND
4
72
IO_L21N_2
5
71
IO_L21P_2
VCCO_7
6
70
VCCO_2
VCCAUX
IO_L23P_7
69
VCCINT
8
68
IO_L24N_2
Bank 7
7
Bank 2
74
67
IO_L24P_2
10
66
GND
11
65
IO_L40N_2
IO_L40N_7/VREF_7
12
64
IO_L40P_2/VREF_2
IO_L40P_6/VREF_6
13
63
IO_L40N_3/VREF_3
IO_L40N_6
14
62
IO_L40P_3
IO_L24P_6
IO_L24N_6/VREF_6
15
61
IO_L24N_3
16
60
IO_L24P_3
59
IO
58
VCCAUX
IO
17
VCCINT
18
VCCO_6
19
GND
Bank 3
9
GND
IO_L40P_7
Bank 6
IO_L23N_7
53
IO_L01P_3/VRN_3
M1
24
Bank 4
52
CCLK
M0
25
(no VREF)
51
DONE
Bank 5
43
44
45
IO_L30N_4/D2
VCCINT
37
IO_L32N_5/GCLK3
42
36
IO_L32P_5/GCLK2
IO_L30P_4/D3
35
IO_L31N_4/INIT_B
34
IO_L31P_5/D5
IO_L31N_5/D4
41
33
VCCAUX
GND
32
IO_L28N_5/D6
40
31
VCCO_5
IO_L31P_4/DOUT/BUSY
30
IO_L28P_5/D7
39
29
GND
38
28
IO_L01N_5/RDWR_B
IO_L32P_4/GCLK0
27
IO_L32N_4/GCLK1
26
M2
IO_L01P_5/CS_B
(no VREF, no DCI)
50
23
IO_L01N_4/VRP_4
IO_L01N_3/VRP_3
IO_L01N_6/VRP_6
49
IO
54
IO_L01P_4/VRN_4
55
22
48
21
IO_L27N_4/DIN/D0
IO
IO_L01P_6/VRN_6
47
GND
46
56
VCCO_4
VCCO_3
20
IO_L27P_4/D1
57
DS099-4_15_042303
Figure 8: VQ100 Package Footprint (top view). Note pin 1 indicator in top-left corner and logo orientation.
22
14
7
0
26
I/O: Unrestricted, general-purpose user I/O
DCI: User I/O or reference resistor input for
bank
CONFIG: Dedicated configuration pins
N.C.: No unconnected pins in this package
12
DUAL: Configuration pin, then possible
user I/O
7
8
GCLK: User I/O or global clock buffer
input
8
4
10
JTAG: Dedicated JTAG port pins
GND: Ground
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4
4
VREF: User I/O or input voltage reference for
bank
VCCO: Output voltage supply for bank
VCCINT: Internal core voltage supply (+1.2V)
VCCAUX: Auxiliary voltage supply (+2.5V)
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
TQ144: 144-lead Thin Quad Flat
Package
Table 18: TQ144 Package Pinout (Continued)
The XC3S50, the XC3S200, and the XC3S400 are available in the 144-lead thin quad flat package, TQ144. Consequently, there is only one footprint for this package as shown
in Table 18 and Figure 9.
The TQ144 package only has four separate VCCO inputs,
unlike the other packages, which have eight separate
VCCO inputs. The TQ144 package has a separate VCCO
input for the top, bottom, left, and right. However, there are
still eight separate I/O banks, as shown in Table 18 and
Figure 9. Banks 0 and 1 share the VCCO_TOP input, Banks
2 and 3 share the VCCO_RIGHT input, Banks 4 and 5
share the VCCO_BOTTOM input, and Banks 6 and 7 share
the VCCO_LEFT input.
All the package pins appear in Table 18 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
XC3S50
XC3S200
XC3S400
Pin Name
Bank
TQ144 Pin
Number
Type
2
IO_L20P_2
P104
I/O
2
IO_L21N_2
P103
I/O
2
IO_L21P_2
P102
I/O
2
IO_L22N_2
P100
I/O
2
IO_L22P_2
P99
I/O
2
IO_L23N_2/VREF_2
P98
VREF
2
IO_L23P_2
P97
I/O
2
IO_L24N_2
P96
I/O
2
IO_L24P_2
P95
I/O
2
IO_L40N_2
P93
I/O
2
IO_L40P_2/VREF_2
P92
VREF
3
IO
P76
I/O
3
IO_L01N_3/VRP_3
P74
DCI
3
IO_L01P_3/VRN_3
P73
DCI
Pinout Table
3
IO_L20N_3
P78
I/O
Table 18: TQ144 Package Pinout
3
IO_L20P_3
P77
I/O
3
IO_L21N_3
P80
I/O
3
IO_L21P_3
P79
I/O
3
IO_L22N_3
P83
I/O
3
IO_L22P_3
P82
I/O
3
IO_L23N_3
P85
I/O
3
IO_L23P_3/VREF_3
P84
VREF
3
IO_L24N_3
P87
I/O
3
IO_L24P_3
P86
I/O
3
IO_L40N_3/VREF_3
P90
VREF
3
IO_L40P_3
P89
I/O
4
IO/VREF_4
P70
VREF
4
IO_L01N_4/VRP_4
P69
DCI
4
IO_L01P_4/VRN_4
P68
DCI
4
IO_L27N_4/DIN/D0
P65
DUAL
4
IO_L27P_4/D1
P63
DUAL
4
IO_L30N_4/D2
P60
DUAL
4
IO_L30P_4/D3
P59
DUAL
4
IO_L31N_4/INIT_B
P58
DUAL
4
IO_L31P_4/DOUT/BUSY
P57
DUAL
4
IO_L32N_4/GCLK1
P56
GCLK
4
IO_L32P_4/GCLK0
P55
GCLK
5
IO/VREF_5
P44
VREF
5
IO_L01N_5/RDWR_B
P41
DUAL
5
IO_L01P_5/CS_B
P40
DUAL
5
IO_L28N_5/D6
P47
DUAL
XC3S50
XC3S200
XC3S400
Pin Name
Bank
TQ144 Pin
Number
Type
0
IO_L01N_0/VRP_0
P141
DCI
0
IO_L01P_0/VRN_0
P140
DCI
0
IO_L27N_0
P137
I/O
0
IO_L27P_0
P135
I/O
0
IO_L30N_0
P132
I/O
0
IO_L30P_0
P131
I/O
0
IO_L31N_0
P130
I/O
0
IO_L31P_0/VREF_0
P129
VREF
0
IO_L32N_0/GCLK7
P128
GCLK
0
IO_L32P_0/GCLK6
P127
GCLK
1
IO
P116
I/O
1
IO_L01N_1/VRP_1
P113
DCI
1
IO_L01P_1/VRN_1
P112
DCI
1
IO_L28N_1
P119
I/O
1
IO_L28P_1
P118
I/O
1
IO_L31N_1/VREF_1
P123
VREF
1
IO_L31P_1
P122
I/O
1
IO_L32N_1/GCLK5
P125
GCLK
1
IO_L32P_1/GCLK4
P124
GCLK
2
IO_L01N_2/VRP_2
P108
DCI
2
IO_L01P_2/VRN_2
P107
DCI
2
IO_L20N_2
P105
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
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27
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 18: TQ144 Package Pinout (Continued)
Table 18: TQ144 Package Pinout (Continued)
XC3S50
XC3S200
XC3S400
Pin Name
XC3S50
XC3S200
XC3S400
Pin Name
Bank
28
TQ144 Pin
Number
Type
Bank
TQ144 Pin
Number
Type
5
IO_L28P_5/D7
P46
DUAL
4,5
VCCO_BOTTOM
P43
VCCO
5
IO_L31N_5/D4
P51
DUAL
4,5
VCCO_BOTTOM
P66
VCCO
5
IO_L31P_5/D5
P50
DUAL
6,7
VCCO_LEFT
P19
VCCO
5
IO_L32N_5/GCLK3
P53
GCLK
6,7
VCCO_LEFT
P34
VCCO
5
IO_L32P_5/GCLK2
P52
GCLK
6,7
VCCO_LEFT
P3
VCCO
6
IO_L01N_6/VRP_6
P36
DCI
N/A
GND
P136
GND
6
IO_L01P_6/VRN_6
P35
DCI
N/A
GND
P139
GND
6
IO_L20N_6
P33
I/O
N/A
GND
P114
GND
6
IO_L20P_6
P32
I/O
N/A
GND
P117
GND
6
IO_L21N_6
P31
I/O
N/A
GND
P94
GND
6
IO_L21P_6
P30
I/O
N/A
GND
P101
GND
6
IO_L22N_6
P28
I/O
N/A
GND
P81
GND
6
IO_L22P_6
P27
I/O
N/A
GND
P88
GND
6
IO_L23N_6
P26
I/O
N/A
GND
P64
GND
6
IO_L23P_6
P25
I/O
N/A
GND
P67
GND
6
IO_L24N_6/VREF_6
P24
VREF
N/A
GND
P42
GND
6
IO_L24P_6
P23
I/O
N/A
GND
P45
GND
6
IO_L40N_6
P21
I/O
N/A
GND
P22
GND
6
IO_L40P_6/VREF_6
P20
VREF
N/A
GND
P29
GND
7
IO/VREF_7
P4
VREF
N/A
GND
P9
GND
7
IO_L01N_7/VRP_7
P2
DCI
N/A
GND
P16
GND
7
IO_L01P_7/VRN_7
P1
DCI
N/A
VCCAUX
P134
VCCAUX
7
IO_L20N_7
P6
I/O
N/A
VCCAUX
P120
VCCAUX
7
IO_L20P_7
P5
I/O
N/A
VCCAUX
P62
VCCAUX
7
IO_L21N_7
P8
I/O
N/A
VCCAUX
P48
VCCAUX
7
IO_L21P_7
P7
I/O
N/A
VCCINT
P133
VCCINT
7
IO_L22N_7
P11
I/O
N/A
VCCINT
P121
VCCINT
7
IO_L22P_7
P10
I/O
N/A
VCCINT
P61
VCCINT
7
IO_L23N_7
P13
I/O
N/A
VCCINT
P49
VCCINT
7
IO_L23P_7
P12
I/O
VCCAUX
CCLK
P72
CONFIG
7
IO_L24N_7
P15
I/O
VCCAUX
DONE
P71
CONFIG
7
IO_L24P_7
P14
I/O
VCCAUX
HSWAP_EN
P142
CONFIG
7
IO_L40N_7/VREF_7
P18
VREF
VCCAUX
M0
P38
CONFIG
7
IO_L40P_7
P17
I/O
VCCAUX
M1
P37
CONFIG
0,1
VCCO_TOP
P126
VCCO
VCCAUX
M2
P39
CONFIG
0,1
VCCO_TOP
P138
VCCO
VCCAUX
PROG_B
P143
CONFIG
0,1
VCCO_TOP
P115
VCCO
VCCAUX
TCK
P110
JTAG
2,3
VCCO_RIGHT
P106
VCCO
VCCAUX
TDI
P144
JTAG
2,3
VCCO_RIGHT
P75
VCCO
VCCAUX
TDO
P109
JTAG
2,3
VCCO_RIGHT
P91
VCCO
VCCAUX
TMS
P111
JTAG
4,5
VCCO_BOTTOM
P54
VCCO
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
User I/Os by Bank
Table 19 indicates how the available user-I/O pins are distributed between the eight I/O banks on the TQ144 package.
Table 19: User I/Os Per Bank in TQ144 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
10
5
0
2
1
2
1
9
4
0
2
1
2
2
14
10
0
2
2
0
3
15
11
0
2
2
0
4
11
0
6
2
1
2
5
9
0
6
0
1
2
6
14
10
0
2
2
0
7
15
11
0
2
2
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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R
Spartan-3 FPGA Family: Pinout Descriptions
109
110
112
111
114
113
115
117
116
119
118
120
122
121
124
123
125
IO_L30P_0
IO_L31N_0
IO_L31P_0/VREF_0
IO_L32N_0/GCLK7
IO_L32P_0/GCLK6
VCCO_TOP
IO_L32N_1/GCLK5
IO_L32P_1/GCLK4
IO_L31N_1/VREF_1
IO_L31P_1
VCCINT
VCCAUX
IO_L28N_1
IO_L28P_1
GND
IO
VCCO_TOP
GND
IO_L01N_1/VRP_1
IO_L01P_1/VRN_1
TMS
TCK
TDO
131
130
129
128
127
126
Bank 0
Bank 1
X
Bank 3
VCCO for Left Edge
VCCO for Right Edge
Bank 7
Bank 2
VCCO for Top Edge
Bank 6
VCCO for Bottom Edge
Bank 5
IO_L01N_2/VRP_2
IO_L01P_2/VRN_2
VCCO_RIGHT
IO_L20N_2
IO_L20P_2
IO_L21N_2
IO_L21P_2
GND
IO_L22N_2
IO_L22P_2
IO_L23N_2/VREF_2
IO_L23P_2
IO_L24N_2
IO_L24P_2
GND
IO_L40N_2
IO_L40P_2/VREF_2
VCCO_RIGHT
IO_L40N_3/VREF_3
IO_L40P_3
GND
IO_L24N_3
IO_L24P_3
IO_L23N_3
IO_L23P_3/VREF_3
IO_L22N_3
IO_L22P_3
GND
IO_L21N_3
IO_L21P_3
IO_L20N_3
IO_L20P_3
IO
VCCO_RIGHT
IO_L01N_3/VRP_3
IO_L01P_3/VRN_3
72
71
69
70
67
68
66
64
65
62
63
59
60
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
IO_L31N_4/INIT_B
IO_L30P_4/D3
IO_L30N_4/D2
VCCINT
VCCAUX
IO_L27P_4/D1
GND
IO_L27N_4/DIN/D0
VCCO_BOTTOM
GND
IO_L01P_4/VRN_4
IO_L01N_4/VRP_4
IO/VREF_4
DONE
CCLK
56
57
58
IO_L31P_4/DOUT/BUSY
50
51
52
53
54
55
45
46
47
48
49
43
44
M1
M0
M2
IO_L01P_5/CS_B
IO_L01N_5/RDWR_B
GND
VCCO_BOTTOM
IO/VREF_5
GND
IO_L28P_5/D7
IO_L28N_5/D6
VCCAUX
VCCINT
IO_L31P_5/D5
IO_L31N_5/D4
IO_L32P_5/GCLK2
IO_L32N_5/GCLK3
VCCO_BOTTOM
IO_L32P_4/GCLK0
IO_L32N_4/GCLK1
61
Bank 4
(no DCI)
39
40
41
42
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
IO_L01P_7/VRN_7
IO_L01N_7/VRP_7
VCCO_LEFT
IO/VREF_7
IO_L20P_7
IO_L20N_7
IO_L21P_7
IO_L21N_7
GND
IO_L22P_7
IO_L22N_7
IO_L23P_7
IO_L23N_7
IO_L24P_7
IO_L24N_7
GND
IO_L40P_7
IO_L40N_7/VREF_7
VCCO_LEFT
IO_L40P_6/VREF_6
IO_L40N_6
GND
IO_L24P_6
IO_L24N_6/VREF_6
IO_L23P_6
IO_L23N_6
IO_L22P_6
IO_L22N_6
GND
IO_L21P_6
IO_L21N_6
IO_L20P_6
IO_L20N_6
VCCO_LEFT
IO_L01P_6/VRN_6
IO_L01N_6/VRP_6
138 VCCO_TOP
137 IO_L27N_0
136 GND
135 IO_L27P_0
134 VCCAUX
133 VCCINT
132 IO_L30N_0
144 TDI
143 PROG_B
142 HSWAP_EN
141 IO_L01N_0/VRP_0
140 IO_L01P_0/VRN_0
139 GND
TQ144 Footprint
DS099-4_08_121103
Figure 9: TQ144 Package Footprint (top view). Note pin 1 indicator in top-left corner and logo orientation.
51
14
7
0
30
I/O: Unrestricted, general-purpose user I/O
DCI: User I/O or reference resistor input for
bank
CONFIG: Dedicated configuration pins
N.C.: No unconnected pins in this package
12
DUAL: Configuration pin, then possible
user I/O
12
8
GCLK: User I/O or global clock buffer
input
12
4
16
JTAG: Dedicated JTAG port pins
GND: Ground
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4
4
VREF: User I/O or input voltage reference for
bank
VCCO: Output voltage supply for bank
VCCINT: Internal core voltage supply (+1.2V)
VCCAUX: Auxiliary voltage supply (+2.5V)
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
PQ208: 208-lead Plastic Quad Flat Pack
The 208-lead plastic quad flat package, PQ208, supports
three different Spartan-3 devices, including the XC3S50,
the XC3S200, and the XC3S400. The footprints for the
XC3S200 and XC3S400 are identical, as shown in Table 20
and Figure 10. The XC3S50, however, has fewer I/O pins
resulting in 17 unconnected pins on the PQ208 package,
labeled as “N.C.” In Table 20 and Figure 10, these unconnected pins are indicated with a black diamond symbol (‹).
Table 20: PQ208 Package Pinout (Continued)
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
0
IO_L32N_0/
GCLK7
0
Bank
PQ208
Pin
Number
Type
IO_L32N_0/
GCLK7
P184
GCLK
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
P183
GCLK
0
VCCO_0
VCCO_0
P188
VCCO
All the package pins appear in Table 20 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
0
VCCO_0
VCCO_0
P201
VCCO
1
IO
IO
P167
I/O
1
IO
IO
P175
I/O
1
IO
IO
P182
I/O
If there is a difference between the XC3S50 pinout and the
pinout for the XC3S200 and XC3S400, then that difference
is highlighted in Table 20. If the table entry is shaded grey,
then there is an unconnected pin on the XC3S50 that maps
to a user-I/O pin on the XC3S200 and XC3S400. If the table
entry is shaded tan, then the unconnected pin on the
XC3S50 maps to a VREF-type pin on the XC3S200 and
XC3S400. If the other VREF pins in the bank all connect to
a voltage reference to support a special I/O standard, then
also connect the N.C. pin on the XC3S50 to the same VREF
voltage. This provides maximum flexibility as you could
potentially migrate a design from the XC3S50 device to an
XC3S200 or XC3S400 FPGA without changing the printed
circuit board.
1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
P162
DCI
1
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
P161
DCI
1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
P166
VREF
1
IO_L10P_1
IO_L10P_1
P165
I/O
1
IO_L27N_1
IO_L27N_1
P169
I/O
1
IO_L27P_1
IO_L27P_1
P168
I/O
1
IO_L28N_1
IO_L28N_1
P172
I/O
1
IO_L28P_1
IO_L28P_1
P171
I/O
1
IO_L31N_1/
VREF_1
IO_L31N_1/
VREF_1
P178
VREF
Pinout Table
1
IO_L31P_1
IO_L31P_1
P176
I/O
1
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
P181
GCLK
1
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
P180
GCLK
1
VCCO_1
VCCO_1
P164
VCCO
1
VCCO_1
VCCO_1
P177
VCCO
2
N.C. (‹)
IO/VREF_2
P154
VREF
2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
P156
DCI
Table 20: PQ208 Package Pinout
Bank
XC3S200
XC3S400
Pin Name
XC3S50
Pin Name
PQ208
Pin
Number
Type
0
IO
IO
P189
I/O
0
IO
IO
P197
I/O
0
N.C. (‹)
IO/VREF_0
P200
VREF
0
IO/VREF_0
IO/VREF_0
P205
VREF
0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
P204
DCI
2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
P155
DCI
0
IO_L01P_0/
VRN_0
IO_L01P_0/
VRN_0
P203
DCI
2
IO_L19N_2
IO_L19N_2
P152
I/O
0
IO_L25N_0
IO_L25N_0
P199
I/O
2
IO_L19P_2
IO_L19P_2
P150
I/O
0
IO_L25P_0
IO_L25P_0
P198
I/O
2
IO_L20N_2
IO_L20N_2
P149
I/O
0
IO_L27N_0
IO_L27N_0
P196
I/O
2
IO_L20P_2
IO_L20P_2
P148
I/O
0
IO_L27P_0
IO_L27P_0
P194
I/O
2
IO_L21N_2
IO_L21N_2
P147
I/O
0
IO_L30N_0
IO_L30N_0
P191
I/O
2
IO_L21P_2
IO_L21P_2
P146
I/O
0
IO_L30P_0
IO_L30P_0
P190
I/O
2
IO_L22N_2
IO_L22N_2
P144
I/O
0
IO_L31N_0
IO_L31N_0
P187
I/O
2
IO_L22P_2
IO_L22P_2
P143
I/O
0
IO_L31P_0/
VREF_0
IO_L31P_0/
VREF_0
P185
VREF
2
IO_L23N_2/
VREF_2
IO_L23N_2/
VREF_2
P141
VREF
2
IO_L23P_2
IO_L23P_2
P140
I/O
DS099-4 (v1.5) July 13, 2004
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31
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 20: PQ208 Package Pinout (Continued)
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
2
IO_L24N_2
2
2
PQ208
Pin
Number
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
PQ208
Pin
Number
Type
Bank
Type
IO_L24N_2
P139
I/O
4
IO_L01P_4/
VRN_4
IO_L01P_4/
VRN_4
P100
DCI
IO_L24P_2
IO_L24P_2
P138
I/O
N.C. (‹)
IO_L39N_2
P137
I/O
4
IO_L25N_4
IO_L25N_4
P95
I/O
2
N.C. (‹)
IO_L39P_2
P135
I/O
4
IO_L25P_4
IO_L25P_4
P94
I/O
2
IO_L40N_2
IO_L40N_2
P133
I/O
4
IO_L27N_4/
DIN/D0
IO_L27N_4/
DIN/D0
P92
DUAL
2
IO_L40P_2/
VREF_2
IO_L40P_2/
VREF_2
P132
VREF
4
IO_L27P_4/
D1
IO_L27P_4/
D1
P90
DUAL
2
VCCO_2
VCCO_2
P136
VCCO
2
VCCO_2
VCCO_2
P153
VCCO
4
IO_L30N_4/
D2
IO_L30N_4/
D2
P87
DUAL
3
IO_L01N_3/
VRP_3
IO_L01N_3/
VRP_3
P107
DCI
4
IO_L30P_4/
D3
IO_L30P_4/
D3
P86
DUAL
3
IO_L01P_3/
VRN_3
IO_L01P_3/
VRN_3
P106
DCI
4
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
P83
DUAL
3
N.C. (‹)
IO_L17N_3
3
N.C. (‹)
IO_L17P_3/
VREF_3
P109
I/O
4
IO_L31P_4/
DOUT/BUSY
DUAL
VREF
IO_L31P_4/
DOUT/BUSY
P81
P108
3
IO_L19N_3
4
I/O
IO_L32N_4/
GCLK1
GCLK
P113
IO_L32N_4/
GCLK1
P80
IO_L19N_3
3
IO_L19P_3
IO_L19P_3
P111
I/O
4
GCLK
IO_L20N_3
IO_L20N_3
P115
I/O
IO_L32P_4/
GCLK0
P79
3
IO_L32P_4/
GCLK0
3
IO_L20P_3
IO_L20P_3
P114
I/O
4
VCCO_4
VCCO_4
P84
VCCO
3
IO_L21N_3
IO_L21N_3
P117
I/O
4
VCCO_4
VCCO_4
P98
VCCO
5
IO
IO
P63
I/O
5
IO
IO
P71
I/O
5
IO/VREF_5
IO/VREF_5
P78
VREF
5
IO_L01N_5/
RDWR_B
IO_L01N_5/
RDWR_B
P58
DUAL
5
IO_L01P_5/
CS_B
IO_L01P_5/
CS_B
P57
DUAL
5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
P62
DCI
5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
P61
DCI
Bank
32
Table 20: PQ208 Package Pinout (Continued)
3
IO_L21P_3
IO_L21P_3
P116
I/O
3
IO_L22N_3
IO_L22N_3
P120
I/O
3
IO_L22P_3
IO_L22P_3
P119
I/O
3
IO_L23N_3
IO_L23N_3
P123
I/O
3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
P122
VREF
3
IO_L24N_3
IO_L24N_3
P125
I/O
3
IO_L24P_3
IO_L24P_3
P124
I/O
3
N.C. (‹)
IO_L39N_3
P128
I/O
3
N.C. (‹)
IO_L39P_3
P126
I/O
3
IO_L40N_3/
VREF_3
IO_L40N_3/
VREF_3
P131
VREF
5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
P65
VREF
3
IO_L40P_3
IO_L40P_3
P130
I/O
5
IO_L27P_5
IO_L27P_5
P64
I/O
3
VCCO_3
VCCO_3
P110
VCCO
5
DUAL
VCCO_3
VCCO_3
P127
VCCO
IO_L28N_5/
D6
P68
3
IO_L28N_5/
D6
4
IO
IO
P93
I/O
5
IO_L28P_5/
D7
IO_L28P_5/
D7
P67
DUAL
4
N.C. (‹)
IO
P97
I/O
5
IO/VREF_4
P85
VREF
IO_L31N_5/
D4
DUAL
IO/VREF_4
IO_L31N_5/
D4
P74
4
4
N.C. (‹)
IO/VREF_4
P96
VREF
5
DUAL
IO/VREF_4
IO/VREF_4
P102
VREF
IO_L31P_5/
D5
P72
4
IO_L31P_5/
D5
4
IO_L01N_4/
VRP_4
IO_L01N_4/
VRP_4
P101
DCI
5
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
P77
GCLK
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 20: PQ208 Package Pinout (Continued)
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
5
IO_L32P_5/
GCLK2
5
Table 20: PQ208 Package Pinout (Continued)
PQ208
Pin
Number
Type
Bank
IO_L32P_5/
GCLK2
P76
GCLK
7
IO_L22P_7
7
VCCO_5
VCCO_5
P60
VCCO
7
5
VCCO_5
VCCO_5
P73
VCCO
6
N.C. (‹)
IO/VREF_6
P50
VREF
6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
P52
DCI
6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
P51
DCI
6
IO_L19N_6
IO_L19N_6
P48
I/O
6
IO_L19P_6
IO_L19P_6
P46
I/O
6
IO_L20N_6
IO_L20N_6
P45
I/O
6
IO_L20P_6
IO_L20P_6
P44
I/O
6
IO_L21N_6
IO_L21N_6
P43
I/O
6
IO_L21P_6
IO_L21P_6
P42
I/O
6
IO_L22N_6
IO_L22N_6
P40
I/O
6
IO_L22P_6
IO_L22P_6
P39
I/O
6
IO_L23N_6
IO_L23N_6
P37
I/O
6
IO_L23P_6
IO_L23P_6
P36
I/O
6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
P35
VREF
6
IO_L24P_6
IO_L24P_6
P34
Bank
PQ208
Pin
Number
Type
IO_L22P_7
P15
I/O
IO_L23N_7
IO_L23N_7
P19
I/O
IO_L23P_7
IO_L23P_7
P18
I/O
7
IO_L24N_7
IO_L24N_7
P21
I/O
7
IO_L24P_7
IO_L24P_7
P20
I/O
7
N.C. (‹)
IO_L39N_7
P24
I/O
7
N.C. (‹)
IO_L39P_7
P22
I/O
7
IO_L40N_7/
VREF_7
IO_L40N_7/
VREF_7
P27
VREF
7
IO_L40P_7
IO_L40P_7
P26
I/O
7
VCCO_7
VCCO_7
P6
VCCO
7
VCCO_7
VCCO_7
P23
VCCO
N/A
GND
GND
P1
GND
N/A
GND
GND
P186
GND
N/A
GND
GND
P195
GND
N/A
GND
GND
P202
GND
N/A
GND
GND
P163
GND
N/A
GND
GND
P170
GND
N/A
GND
GND
P179
GND
N/A
GND
GND
P134
GND
I/O
N/A
GND
GND
P145
GND
GND
GND
P151
GND
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
6
N.C. (‹)
IO_L39N_6
P33
I/O
N/A
6
N.C. (‹)
IO_L39P_6
P31
I/O
N/A
GND
GND
P157
GND
6
IO_L40N_6
IO_L40N_6
P29
I/O
N/A
GND
GND
P112
GND
6
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
P28
VREF
N/A
GND
GND
P118
GND
N/A
GND
GND
P129
GND
6
VCCO_6
VCCO_6
P32
VCCO
N/A
GND
GND
P82
GND
6
VCCO_6
VCCO_6
P49
VCCO
N/A
GND
GND
P91
GND
7
IO_L01N_7/
VRP_7
IO_L01N_7/
VRP_7
P3
DCI
N/A
GND
GND
P99
GND
N/A
GND
GND
P105
GND
7
IO_L01P_7/
VRN_7
IO_L01P_7/
VRN_7
P2
DCI
N/A
GND
GND
P53
GND
7
N.C. (‹)
IO_L16N_7
P5
I/O
N/A
GND
GND
P59
GND
7
N.C. (‹)
IO_L16P_7/
VREF_7
P4
VREF
N/A
GND
GND
P66
GND
N/A
GND
GND
P75
GND
N/A
GND
GND
P30
GND
7
IO_L19N_7/
VREF_7
IO_L19N_7/
VREF_7
P9
VREF
N/A
GND
GND
P41
GND
7
IO_L19P_7
IO_L19P_7
P7
I/O
N/A
GND
GND
P47
GND
7
IO_L20N_7
IO_L20N_7
P11
I/O
N/A
GND
GND
P8
GND
7
IO_L20P_7
IO_L20P_7
P10
I/O
N/A
GND
GND
P14
GND
7
IO_L21N_7
IO_L21N_7
P13
I/O
N/A
GND
GND
P25
GND
7
IO_L21P_7
IO_L21P_7
P12
I/O
N/A
VCCAUX
VCCAUX
P193
VCCAUX
7
IO_L22N_7
IO_L22N_7
P16
I/O
N/A
VCCAUX
VCCAUX
P173
VCCAUX
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R
Spartan-3 FPGA Family: Pinout Descriptions
Table 20: PQ208 Package Pinout (Continued)
XC3S50
Pin Name
Bank
XC3S200
XC3S400
Pin Name
Table 20: PQ208 Package Pinout (Continued)
PQ208
Pin
Number
Type
Bank
XC3S50
Pin Name
XC3S200
XC3S400
Pin Name
PQ208
Pin
Number
Type
P54
CONFIG
N/A
VCCAUX
VCCAUX
P142
VCCAUX
VCCAUX M1
M1
N/A
VCCAUX
VCCAUX
P121
VCCAUX
VCCAUX M2
M2
P56
CONFIG
N/A
VCCAUX
VCCAUX
P89
VCCAUX
VCCAUX PROG_B
PROG_B
P207
CONFIG
N/A
VCCAUX
VCCAUX
P69
VCCAUX
VCCAUX TCK
TCK
P159
JTAG
N/A
VCCAUX
VCCAUX
P38
VCCAUX
VCCAUX TDI
TDI
P208
JTAG
N/A
VCCAUX
VCCAUX
P17
VCCAUX
VCCAUX TDO
TDO
P158
JTAG
N/A
VCCINT
VCCINT
P192
VCCINT
VCCAUX TMS
TMS
P160
JTAG
N/A
VCCINT
VCCINT
P174
VCCINT
N/A
VCCINT
VCCINT
P88
VCCINT
N/A
VCCINT
VCCINT
P70
VCCINT
VCCAUX CCLK
CCLK
P104
CONFIG
VCCAUX DONE
DONE
P103
CONFIG
VCCAUX HSWAP_EN
HSWAP_EN
P206
CONFIG
VCCAUX M0
M0
P55
CONFIG
User I/Os by Bank
Table 21 indicates how the available user-I/O pins are distributed between the eight I/O banks for the XC3S50 in the
PQ208 package. Similarly, Table 22 shows how the available user-I/O pins are distributed between the eight I/O
banks for the XC3S200 and XC3S400 in the PQ208 package.
Table 21: User I/Os Per Bank for XC3S50 in PQ208 Package
Package Edge
Top
Right
Bottom
Left
34
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
15
9
0
2
2
2
1
15
9
0
2
2
2
2
16
13
0
2
2
0
3
16
12
0
2
2
0
4
15
3
6
2
2
2
5
15
3
6
2
2
2
6
16
12
0
2
2
0
7
16
12
0
2
2
0
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 22: User I/Os Per Bank for XC3S200 and XC3S400 in PQ208 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
16
9
0
2
3
2
1
15
9
0
2
2
2
2
19
14
0
2
3
0
3
20
15
0
2
3
0
4
17
4
6
2
3
2
5
15
3
6
2
2
2
6
19
14
0
2
3
0
7
20
15
0
2
3
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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R
189 IO
188 VCCO_0
187 IO_L31N_0
186 GND
185 IO_L31P_0/VREF_0
184 IO_L32N_0/GCLK7
183 IO_L32P_0/GCLK6
74
75
76
77
78
192 VCCINT
193 VCCAUX
194 IO_L27P_0
195 GND
196 IO_L27N_0
197 IO
198 IO_L25P_0
199 IO_L25N_0
200 IO/VREF_0 (‹)
201 VCCO_0
202 GND
203 IO_L01P_0/VRN_0
205 IO/VREF_0
206 HSWAP_EN
73
GND: Ground
Bank 5
GND
M1
M0
M2
IO_L01P_5/CS_B
IO_L01N_5/RDWR_B
GND
VCCO_5
IO_L10P_5/VRN_5
IO_L10N_5/VRP_5
IO
IO_L27P_5
IO_L27N_5/VREF_5
GND
IO_L28P_5/D7
IO_L28N_5/D6
VCCAUX
VCCINT
IO
IO_L31P_5/D5
VCCO_5
IO_L31N_5/D4
GND
IO_L32P_5/GCLK2
IO_L32N_5/GCLK3
IO/VREF_5
53
28
VCCAUX: Auxiliary voltage
supply (+2.5V)
190 IO_L30P_0
8
72
VCCO: Output voltage
supply for bank
191 IO_L30N_0
12
71
VCCINT: Internal core
voltage supply (+1.2V)
70
4
69
JTAG: Dedicated JTAG
port pins
68
4
67
CONFIG: Dedicated
configuration pins
66
7
65
DCI: User I/O or reference
resistor input for bank
64
16
63
GCLK: User I/O or global
clock buffer input
62
8
61
All devices
DUAL: Configuration pin,
12
then possible user I/O
60
N.C.: No unconnected pins
in this package
59
0
58
VREF: User I/O or input
voltage reference for bank
57
22
56
XC3S200, XC3S400
(141 max user I/O)
I/O: Unrestricted,
83
general-purpose user I/O
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
55
N.C.: Unconnected pins for
XC3S50 (‹)
Bank 0
2
3
Bank 7
17
1
Bank 6
VREF: User I/O or input
16
voltage reference for bank
GND
IO_L01P_7/VRN_7
IO_L01N_7/VRP_7
(‹) IO_L16P_7/VREF_7
(‹) IO_L16N_7
VCCO_7
IO_L19P_7
GND
IO_L19N_7/VREF_7
IO_L20P_7
IO_L20N_7
IO_L21P_7
IO_L21N_7
GND
IO_L22P_7
IO_L22N_7
VCCA U X
IO_L23P_7
IO_L23N_7
IO_L24P_7
IO_L24N_7
(‹) IO_L39P_7
VCCO_7
(‹) IO_L39N_7
GND
IO_L40P_7
IO_L40N_7/VREF_7
IO_L40P_6/VREF_6
IO_L40N_6
GND
(‹) IO_L39P_6
VCCO_6
(‹) IO_L39N_6
IO_L24P_6
IO_L24N_6/VREF_6
IO_L23P_6
IO_L23N_6
VCCAUX
IO_L22P_6
IO_L22N_6
GND
IO_L21P_6
IO_L21N_6
IO_L20P_6
IO_L20N_6
IO_L19P_6
GND
IO_L19N_6
VCCO_6
(‹) IO/VREF_6
IO_L01P_6/VRN_6
IO_L01N_6/VRP_6
54
XC3S50
(124 max. user I/O)
I/O: Unrestricted,
72
general-purpose user I/O
208 TDI
Left Half of Package
(top view)
207 PROG_B
PQ208 Footprint
204 IO_L01N_0/VRP_0
Spartan-3 FPGA Family: Pinout Descriptions
DS099-4_09a_121103
Figure 10: PQ208 Package Footprint (top view). Note pin 1 indicator in top-left corner and logo orientation.
36
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Product Specification
157 GND
158 TDO
159 TCK
Right Half of Package
(top view)
160 TMS
161 IO_L01P_1/VRN_1
162 IO_L01N_1/VRP_1
163 GND
164 VCCO_1
165 IO_L10P_1
166 IO_L10N_1/VREF_1
167 IO
168 IO_L27P_1
169 IO_L27N_1
170 GND
171 IO_L28P_1
172 IO_L28N_1
173 VCCAUX
174 VCCINT
175 IO
Spartan-3 FPGA Family: Pinout Descriptions
176 IO_L31P_1
177 VCCO_1
178 IO_L31N_1/VREF_1
179 GND
180 IO_L32P_1/GCLK4
181 IO_L32N_1/GCLK5
182 IO
R
Bank 3
Bank 2
Bank 1
DS099-4 (v1.5) July 13, 2004
Product Specification
IO_L01N_2/VRP_2
IO_L01P_2/VRN_2
IO/VREF_2 (‹)
VCCO_2
IO_L19N_2
GND
IO_L19P_2
IO_L20N_2
IO_L20P_2
IO_L21N_2
IO_L21P_2
GND
IO_L22N_2
IO_L22P_2
VCCAUX
IO_L23N_2/VREF_2
IO_L23P_2
IO_L24N_2
IO_L24P_2
IO_L39N_2 (‹)
VCCO_2
IO_L39P_2 (‹)
GND
IO_L40N_2
IO_L40P_2/VREF_2
IO_L40N_3/VREF_3
IO_L40P_3
GND
IO_L39N_3 (‹)
VCCO_3
IO_L39P_3 (‹)
IO_L24N_3
IO_L24P_3
IO_L23N_3
IO_L23P_3/VREF_3
VCCAUX
IO_L22N_3
IO_L22P_3
GND
IO_L21N_3
IO_L21P_3
IO_L20N_3
IO_L20P_3
IO_L19N_3
GND
IO_L19P_3
VCCO_3
IO_L17N_3 (‹)
IO_L17P_3/VREF_3 (‹)
IO_L01N_3/VRP_3
IO_L01P_3/VRN_3
GND
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
IO_L32P_4/GCLK0
IO_L32N_4/GCLK1
IO_L31P_4/DOUT/BUSY
GND
IO_L31N_4/INIT_B
VCCO_4
IO/VREF_4
IO_L30P_4/D3
IO_L30N_4/D2
VCCINT
VCCAUX
IO_L27P_4/D1
GND
D
IO_L27N_4/DIN/D0
IO
IO_L25P_4
IO_L25N_4
(‹) IO/VREF_4
(‹) IO
VCCO_4
GND
IO_L01P_4/VRN_4
IO_L01N_4/VRP_4
IO/VREF_4
DONE
CCLK
79
Bank 4
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
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R
Spartan-3 FPGA Family: Pinout Descriptions
FT256: 256-lead Fine-pitch Thin Ball
Grid Array
The 256-lead fine-pitch thin ball grid array package, FT256,
supports three different Spartan-3 devices, including the
XC3S200, the XC3S400, and the XC3S1000. The footprints
for all three devices are identical, as shown in Table 23 and
Figure 11.
Table 23: FT256 Package Pinout (Continued)
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
FT256
Pin
Number
Type
1
IO_L01P_1/VRN_1
B14
DCI
1
IO_L10N_1/VREF_1
A13
VREF
1
IO_L10P_1
B13
I/O
1
IO_L27N_1
B12
I/O
1
IO_L27P_1
C12
I/O
1
IO_L28N_1
D11
I/O
1
IO_L28P_1
E11
I/O
Pinout Table
1
IO_L29N_1
B11
I/O
Table 23: FT256 Package Pinout
1
IO_L29P_1
C11
I/O
1
IO_L30N_1
D10
I/O
1
IO_L30P_1
E10
I/O
1
IO_L31N_1/VREF_1
A10
VREF
1
IO_L31P_1
B10
I/O
1
IO_L32N_1/GCLK5
C9
GCLK
1
IO_L32P_1/GCLK4
D9
GCLK
1
VCCO_1
E9
VCCO
1
VCCO_1
F9
VCCO
1
VCCO_1
F10
VCCO
2
IO
G16
I/O
2
IO_L01N_2/VRP_2
B16
DCI
2
IO_L01P_2/VRN_2
C16
DCI
2
IO_L16N_2
C15
I/O
2
IO_L16P_2
D14
I/O
2
IO_L17N_2
D15
I/O
2
IO_L17P_2/VREF_2
D16
VREF
2
IO_L19N_2
E13
I/O
2
IO_L19P_2
E14
I/O
2
IO_L20N_2
E15
I/O
2
IO_L20P_2
E16
I/O
2
IO_L21N_2
F12
I/O
2
IO_L21P_2
F13
I/O
2
IO_L22N_2
F14
I/O
2
IO_L22P_2
F15
I/O
2
IO_L23N_2/VREF_2
G12
VREF
2
IO_L23P_2
G13
I/O
2
IO_L24N_2
G14
I/O
2
IO_L24P_2
G15
I/O
2
IO_L39N_2
H13
I/O
2
IO_L39P_2
H14
I/O
2
IO_L40N_2
H15
I/O
All the package pins appear in Table 23 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
38
FT256
Pin
Number
Type
0
IO
A5
I/O
0
IO
A7
I/O
0
IO/VREF_0
A3
VREF
0
IO/VREF_0
D5
VREF
0
IO_L01N_0/VRP_0
B4
DCI
0
IO_L01P_0/VRN_0
A4
DCI
0
IO_L25N_0
C5
I/O
0
IO_L25P_0
B5
I/O
0
IO_L27N_0
E6
I/O
0
IO_L27P_0
D6
I/O
0
IO_L28N_0
C6
I/O
0
IO_L28P_0
B6
I/O
0
IO_L29N_0
E7
I/O
0
IO_L29P_0
D7
I/O
0
IO_L30N_0
C7
I/O
0
IO_L30P_0
B7
I/O
0
IO_L31N_0
D8
I/O
0
IO_L31P_0/VREF_0
C8
VREF
0
IO_L32N_0/GCLK7
B8
GCLK
0
IO_L32P_0/GCLK6
A8
GCLK
0
VCCO_0
E8
VCCO
0
VCCO_0
F7
VCCO
0
VCCO_0
F8
VCCO
1
IO
A9
I/O
1
IO
A12
I/O
1
IO
C10
I/O
1
IO/VREF_1
D12
VREF
1
IO_L01N_1/VRP_1
A14
DCI
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 23: FT256 Package Pinout (Continued)
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
FT256
Pin
Number
Table 23: FT256 Package Pinout (Continued)
Type
Bank
XC3S200
XC3S400
XC3S1000
Pin Name
FT256
Pin
Number
Type
2
IO_L40P_2/VREF_2
H16
VREF
4
IO_L27P_4/D1
N11
DUAL
2
VCCO_2
G11
VCCO
4
IO_L28N_4
P11
I/O
2
VCCO_2
H11
VCCO
4
IO_L28P_4
R11
I/O
2
VCCO_2
H12
VCCO
4
IO_L29N_4
M10
I/O
3
IO
K15
I/O
4
IO_L29P_4
N10
I/O
3
IO_L01N_3/VRP_3
P16
DCI
4
IO_L30N_4/D2
P10
DUAL
3
IO_L01P_3/VRN_3
R16
DCI
4
IO_L30P_4/D3
R10
DUAL
3
IO_L16N_3
P15
I/O
4
IO_L31N_4/INIT_B
N9
DUAL
3
IO_L16P_3
P14
I/O
4
IO_L31P_4/DOUT/BUSY
P9
DUAL
3
IO_L17N_3
N16
I/O
4
IO_L32N_4/GCLK1
R9
GCLK
3
IO_L17P_3/VREF_3
N15
VREF
4
IO_L32P_4/GCLK0
T9
GCLK
3
IO_L19N_3
M14
I/O
4
VCCO_4
L9
VCCO
3
IO_L19P_3
N14
I/O
4
VCCO_4
L10
VCCO
3
IO_L20N_3
M16
I/O
4
VCCO_4
M9
VCCO
3
IO_L20P_3
M15
I/O
5
IO
N5
I/O
3
IO_L21N_3
L13
I/O
5
IO
P7
I/O
3
IO_L21P_3
M13
I/O
5
IO
T5
I/O
3
IO_L22N_3
L15
I/O
5
IO/VREF_5
T8
VREF
3
IO_L22P_3
L14
I/O
5
IO_L01N_5/RDWR_B
T3
DUAL
3
IO_L23N_3
K12
I/O
5
IO_L01P_5/CS_B
R3
DUAL
3
IO_L23P_3/VREF_3
L12
VREF
5
IO_L10N_5/VRP_5
T4
DCI
3
IO_L24N_3
K14
I/O
5
IO_L10P_5/VRN_5
R4
DCI
3
IO_L24P_3
K13
I/O
5
IO_L27N_5/VREF_5
R5
VREF
3
IO_L39N_3
J14
I/O
5
IO_L27P_5
P5
I/O
3
IO_L39P_3
J13
I/O
5
IO_L28N_5/D6
N6
DUAL
3
IO_L40N_3/VREF_3
J16
VREF
5
IO_L28P_5/D7
M6
DUAL
3
IO_L40P_3
K16
I/O
5
IO_L29N_5
R6
I/O
3
VCCO_3
J11
VCCO
5
IO_L29P_5/VREF_5
P6
VREF
3
VCCO_3
J12
VCCO
5
IO_L30N_5
N7
I/O
3
VCCO_3
K11
VCCO
5
IO_L30P_5
M7
I/O
4
IO
T12
I/O
5
IO_L31N_5/D4
T7
DUAL
4
IO
T14
I/O
5
IO_L31P_5/D5
R7
DUAL
4
IO/VREF_4
N12
VREF
5
IO_L32N_5/GCLK3
P8
GCLK
4
IO/VREF_4
P13
VREF
5
IO_L32P_5/GCLK2
N8
GCLK
4
IO/VREF_4
T10
VREF
5
VCCO_5
L7
VCCO
4
IO_L01N_4/VRP_4
R13
DCI
5
VCCO_5
L8
VCCO
4
IO_L01P_4/VRN_4
T13
DCI
5
VCCO_5
M8
VCCO
4
IO_L25N_4
P12
I/O
6
IO
K1
I/O
4
IO_L25P_4
R12
I/O
6
IO_L01N_6/VRP_6
R1
DCI
4
IO_L27N_4/DIN/D0
M11
DUAL
6
IO_L01P_6/VRN_6
P1
DCI
DS099-4 (v1.5) July 13, 2004
Product Specification
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R
Spartan-3 FPGA Family: Pinout Descriptions
Table 23: FT256 Package Pinout (Continued)
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
40
Table 23: FT256 Package Pinout (Continued)
FT256
Pin
Number
Type
Bank
XC3S200
XC3S400
XC3S1000
Pin Name
FT256
Pin
Number
Type
6
IO_L16N_6
P2
I/O
7
IO_L24N_7
G3
I/O
6
IO_L16P_6
N3
I/O
7
IO_L24P_7
G4
I/O
6
IO_L17N_6
N2
I/O
7
IO_L39N_7
H3
I/O
6
IO_L17P_6/VREF_6
N1
VREF
7
IO_L39P_7
H4
I/O
6
IO_L19N_6
M4
I/O
7
IO_L40N_7/VREF_7
H1
VREF
6
IO_L19P_6
M3
I/O
7
IO_L40P_7
G1
I/O
6
IO_L20N_6
M2
I/O
7
VCCO_7
G6
VCCO
6
IO_L20P_6
M1
I/O
7
VCCO_7
H5
VCCO
6
IO_L21N_6
L5
I/O
7
VCCO_7
H6
VCCO
6
IO_L21P_6
L4
I/O
N/A
GND
A1
GND
6
IO_L22N_6
L3
I/O
N/A
GND
A16
GND
6
IO_L22P_6
L2
I/O
N/A
GND
B2
GND
6
IO_L23N_6
K5
I/O
N/A
GND
B9
GND
6
IO_L23P_6
K4
I/O
N/A
GND
B15
GND
6
IO_L24N_6/VREF_6
K3
VREF
N/A
GND
F6
GND
6
IO_L24P_6
K2
I/O
N/A
GND
F11
GND
6
IO_L39N_6
J4
I/O
N/A
GND
G7
GND
6
IO_L39P_6
J3
I/O
N/A
GND
G8
GND
6
IO_L40N_6
J2
I/O
N/A
GND
G9
GND
6
IO_L40P_6/VREF_6
J1
VREF
N/A
GND
G10
GND
6
VCCO_6
J5
VCCO
N/A
GND
H2
GND
6
VCCO_6
J6
VCCO
N/A
GND
H7
GND
6
VCCO_6
K6
VCCO
N/A
GND
H8
GND
7
IO
G2
I/O
N/A
GND
H9
GND
7
IO_L01N_7/VRP_7
C1
DCI
N/A
GND
H10
GND
7
IO_L01P_7/VRN_7
B1
DCI
N/A
GND
J7
GND
7
IO_L16N_7
C2
I/O
N/A
GND
J8
GND
7
IO_L16P_7/VREF_7
C3
VREF
N/A
GND
J9
GND
7
IO_L17N_7
D1
I/O
N/A
GND
J10
GND
7
IO_L17P_7
D2
I/O
N/A
GND
J15
GND
7
IO_L19N_7/VREF_7
E3
VREF
N/A
GND
K7
GND
7
IO_L19P_7
D3
I/O
N/A
GND
K8
GND
7
IO_L20N_7
E1
I/O
N/A
GND
K9
GND
7
IO_L20P_7
E2
I/O
N/A
GND
K10
GND
7
IO_L21N_7
F4
I/O
N/A
GND
L6
GND
7
IO_L21P_7
E4
I/O
N/A
GND
L11
GND
7
IO_L22N_7
F2
I/O
N/A
GND
R2
GND
7
IO_L22P_7
F3
I/O
N/A
GND
R8
GND
7
IO_L23N_7
G5
I/O
N/A
GND
R15
GND
7
IO_L23P_7
F5
I/O
N/A
GND
T1
GND
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 23: FT256 Package Pinout (Continued)
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
Table 23: FT256 Package Pinout (Continued)
FT256
Pin
Number
Type
XC3S200
XC3S400
XC3S1000
Pin Name
Bank
FT256
Pin
Number
Type
N/A
GND
T16
GND
N/A
VCCINT
N13
VCCINT
N/A
VCCAUX
A6
VCCAUX
VCCAUX
CCLK
T15
CONFIG
N/A
VCCAUX
A11
VCCAUX
VCCAUX
DONE
R14
CONFIG
N/A
VCCAUX
F1
VCCAUX
VCCAUX
HSWAP_EN
C4
CONFIG
N/A
VCCAUX
F16
VCCAUX
VCCAUX
M0
P3
CONFIG
N/A
VCCAUX
L1
VCCAUX
VCCAUX
M1
T2
CONFIG
N/A
VCCAUX
L16
VCCAUX
VCCAUX
M2
P4
CONFIG
N/A
VCCAUX
T6
VCCAUX
VCCAUX
PROG_B
B3
CONFIG
N/A
VCCAUX
T11
VCCAUX
VCCAUX
TCK
C14
JTAG
N/A
VCCINT
D4
VCCINT
VCCAUX
TDI
A2
JTAG
N/A
VCCINT
D13
VCCINT
VCCAUX
TDO
A15
JTAG
N/A
VCCINT
E5
VCCINT
VCCAUX
TMS
C13
JTAG
N/A
VCCINT
E12
VCCINT
N/A
VCCINT
M5
VCCINT
User I/Os by Bank
N/A
VCCINT
M12
VCCINT
N/A
VCCINT
N4
VCCINT
Table 24 indicates how the available user-I/O pins are distributed between the eight I/O banks on the FT256 package.
Table 24: User I/Os Per Bank in FT256 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
20
13
0
2
3
2
1
20
13
0
2
3
2
2
23
18
0
2
3
0
3
23
18
0
2
3
0
4
21
8
6
2
3
2
5
20
7
6
2
3
2
6
23
18
0
2
3
0
7
23
18
0
2
3
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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R
Spartan-3 FPGA Family: Pinout Descriptions
FT256 Footprint
3
Bank 0
5
6
4
I/O
IO
VREF_0 L01P_0
VRN_0
7
8
I/O
I/O
L32P_0
GCLK6
9
Bank 1
11
12
10
15
16
I/O
I/O
L10N_1 L01N_1
VREF_1 VRP_1
13
14
TDO
GND
GND
I/O
L01N_2
VRP_2
2
I/O
I/O
L31N_1 VCCAUX
VREF_1
GND
I/O
I/O
I/O
I/O
L31P_1 L29N_1 L27N_1 L10P_1
I/O
L01P_1
VRN_1
I/O
I/O
L29P_1 L27P_1
TCK
A
GND
B
I/O
L01P_7
VRN_7
C
I/O
L01N_7
VRP_7
D
IO
I/O
I/O
I/O
VCCINT VREF_0
L17N_7 L17P_7 L19P_7
E
I/O
L20N_7
F
VCCAUX
G
I/O
L40P_7
I/O
I/O
I/O
I/O
VCCO_7
L24N_7 L24P_7 L23N_7
GND
GND
GND
GND
I/O
I/O
I/O
I/O
VCCO_2 L23N_2
L23P_2 L24N_2 L24P_2
VREF_2
H
I/O
L40N_7
VREF_7
GND
I/O
I/O
VCCO_7 VCCO_7
L39N_7 L39P_7
GND
GND
GND
GND
VCCO_2 VCCO_2
I/O
I/O
I/O
I/O
L40P_2
L39N_2 L39P_2 L40N_2
VREF_2
J
I/O
L40P_6
VREF_6
I/O
I/O
I/O
VCCO_6 VCCO_6
L40N_6 L39P_6 L39N_6
GND
GND
GND
GND
VCCO_3 VCCO_3
I/O
I/O
L39P_3 L39N_3
K
I/O
I/O
I/O
I/O
VCCO_6
L24N_6
L23P_6 L23N_6
VREF_6
GND
GND
GND
GND
VCCO_3
L
VCCAUX
M
N
TDI
I/O
GND PROG_B L01N_0
VRP_0
I/O
VCCAUX
I/O
I/O
I/O
I/O
L32N_0
L25P_0 L28P_0 L30P_0
GCLK7
I/O
I/O
I/O
I/O
I/O
I/O
HSWAP_
L16P_7
L31P_0
L16N_7
L25N_0 L28N_0 L30N_0
EN
VREF_7
VREF_0
I/O
L32N_1
GCLK5
I/O
I/O
TMS
I/O
I/O
L01P_2
L16N_2
2
VRN_2
I/O
I/O
IO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCINT
L17P_2
L32P_1
L16P_2 L17N_2
L30N_1 L28N_1 VREF_1
L27P_0 L29P_0 L31N_0
VREF_2
GCLK4
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_0 VCCO_1
VCCINT
VCCINT
L19N_7
L20P_7
L21P_7
L27N_0 L29N_0
L30P_1 L28P_1
L19N_2 L19P_2 L20N_2 L20P_2
VREF_7
I/O
I/O
I/O
I/O
L22N_7 L22P_7 L21N_7 L23P_7
I/O
L24P_6
I/O
I/O
I/O
I/O
L22P_6 L22N_6 L21P_6 L21N_6
GND
GND
VCCO_0 VCCO_0 VCCO_1 VCCO_1
I/O
I/O
I/O
I/O
VCCAUX
L21N_2 L21P_2 L22N_2 L22P_2
GND
VCCO_5 VCCO_5 VCCO_4 VCCO_4
I/O
I/O
I/O
L23N_3 L24P_3 L24N_3
I/O
GND
I/O
L40N_3
VREF_3
I/O
I/O
L40P_3
I/O
I/O
I/O
I/O
VCCAUX
L23P_3
L21N_3 L22P_3 L22N_3
VREF_3
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L27N_4 VCCINT
VCCO_5 VCCO_4
VCCINT L28P_5
L21P_3 L19N_3 L20P_3 L20N_3
DIN
L20P_6 L20N_6 L19P_6 L19N_6
L30P_5
L29N_4
D7
D0
I/O
I/O
I/O
I/O
I/O
I/O
IO
I/O
I/O
I/O
I/O
I/O
I/O
VCCINT
I/O
L17P_3
L27P_4 VREF_4 VCCINT
L32P_5 L31N_4
L28N_5
L17P_6
L17N_3
L19P_3
L29P_4
L30N_5
L17N_6 L16P_6
VREF_3
D1
GCLK2 INIT_B
D6
VREF_6
P
I/O
I/O
L01P_6
L16N_6
VRN_6
R
I/O
L01N_6
VRP_6
GND
T
GND
M1
M0
M2
I/O
L27P_5
I/O
L29P_5
VREF_5
I/O
I/O
I/O
I/O
I/O
I/O
L31P_5
L01P_5 L10P_5 L27N_5
L29N_5
D5
CS_B VRN_5 VREF_5
I/O
I/O
L01N_5 L10N_5
RDWR_B VRP_5
I/O
I/O
I/O
I/O
L31P_4
L30N_4
L32N_5
DOUT
D2
GCLK3
BUSY
I/O
I/O
GND
L32N_4 L30P_4
D3
GCLK1
I/O
IO
VCCAUX L31N_5
VREF_5
D4
Bank 2
2
Bank 3
Bank 6
Bank 7
1
I/O
IO
I/O
I/O
I/O
I/O
L01N_3
L28N_4 L25N_4 VREF_4 L16P_3 L16N_3
VRP_3
3
I/O
I/O
I/O
L01N_4
L28P_4 L25P_4
VRP_4
I/O
IO
L32P_4 VREF_4 VCCAUX
GCLK0
Bank 5
I/O
Bank 4
I/O
L01P_4
VRN_4
DONE
GND
I/O
L01P_3
VRN_3
3
I/O
CCLK
GND
DS099-4_10_030503
Figure 11: FT256 Package Footprint (top view)
113
16
7
0
42
I/O: Unrestricted, general-purpose user I/O
DCI: User I/O or reference resistor input for
bank
CONFIG: Dedicated configuration pins
N.C.: No unconnected pins in this package
12
8
4
32
DUAL: Configuration pin, then possible
user I/O
GCLK: User I/O or global clock buffer input
JTAG: Dedicated JTAG port pins
GND: Ground
www.xilinx.com
1-800-255-7778
24
24
VREF: User I/O or input voltage reference for
bank
VCCO: Output voltage supply for bank
8
VCCINT: Internal core voltage supply
(+1.2V)
8
VCCAUX: Auxiliary voltage supply
(+2.5V)
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
FG320: 320-lead Fine-pitch Ball Grid
Array
The 320-lead fine-pitch ball grid array package, FG320,
supports three different Spartan-3 devices, including the
XC3S400, the XC3S1000, and the XC3S1500. The footprint
for all three devices is identical, as shown in Table 25 and
Figure 12.
Table 25: FG320 Package Pinout (Continued)
XC3S400
XC3S1000
XC3S1500
Pin Name
Bank
FG320
Pin
Number
Type
0
VCCO_0
C6
VCCO
G8
VCCO
0
VCCO_0
The FG320 package is an 18 x 18 array of solder balls
minus the four center balls.
0
VCCO_0
G9
VCCO
1
IO
A11
I/O
All the package pins appear in Table 25 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
1
IO
B13
I/O
1
IO
D10
I/O
1
IO/VREF_1
A12
VREF
1
IO_L01N_1/VRP_1
A16
DCI
1
IO_L01P_1/VRN_1
A17
DCI
Pinout Table
1
IO_L10N_1/VREF_1
A15
VREF
Table 25: FG320 Package Pinout
1
IO_L10P_1
B15
I/O
1
IO_L15N_1
C14
I/O
1
IO_L15P_1
C15
I/O
1
IO_L16N_1
A14
I/O
XC3S400
XC3S1000
XC3S1500
Pin Name
Bank
FG320
Pin
Number
Type
1
IO_L16P_1
B14
I/O
0
IO
D9
I/O
1
IO_L24N_1
D14
I/O
0
IO
E7
I/O
1
IO_L24P_1
D13
I/O
0
IO/VREF_0
B3
VREF
1
IO_L27N_1
E13
I/O
0
IO/VREF_0
D6
VREF
1
IO_L27P_1
E12
I/O
0
IO_L01N_0/VRP_0
A2
DCI
1
IO_L28N_1
C12
I/O
0
IO_L01P_0/VRN_0
A3
DCI
1
IO_L28P_1
D12
I/O
0
IO_L09N_0
B4
I/O
1
IO_L29N_1
F11
I/O
0
IO_L09P_0
C4
I/O
1
IO_L29P_1
E11
I/O
0
IO_L10N_0
C5
I/O
1
IO_L30N_1
C11
I/O
0
IO_L10P_0
D5
I/O
1
IO_L30P_1
D11
I/O
0
IO_L15N_0
A4
I/O
1
IO_L31N_1/VREF_1
A10
VREF
0
IO_L15P_0
A5
I/O
1
IO_L31P_1
B10
I/O
0
IO_L25N_0
B5
I/O
1
IO_L32N_1/GCLK5
E10
GCLK
0
IO_L25P_0
B6
I/O
1
IO_L32P_1/GCLK4
F10
GCLK
0
IO_L27N_0
C7
I/O
1
VCCO_1
B11
VCCO
0
IO_L27P_0
D7
I/O
1
VCCO_1
C13
VCCO
0
IO_L28N_0
C8
I/O
1
VCCO_1
G10
VCCO
0
IO_L28P_0
D8
I/O
1
VCCO_1
G11
VCCO
0
IO_L29N_0
E8
I/O
2
IO
J13
I/O
0
IO_L29P_0
F8
I/O
2
IO_L01N_2/VRP_2
C16
DCI
0
IO_L30N_0
A7
I/O
2
IO_L01P_2/VRN_2
C17
DCI
0
IO_L30P_0
A8
I/O
2
IO_L16N_2
B18
I/O
0
IO_L31N_0
B9
I/O
2
IO_L16P_2
C18
I/O
0
IO_L31P_0/VREF_0
A9
VREF
2
IO_L17N_2
D17
I/O
0
IO_L32N_0/GCLK7
E9
GCLK
2
IO_L17P_2/VREF_2
D18
VREF
0
IO_L32P_0/GCLK6
F9
GCLK
2
IO_L19N_2
D16
I/O
0
VCCO_0
B8
VCCO
2
IO_L19P_2
E16
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
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1-800-255-7778
43
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 25: FG320 Package Pinout (Continued)
XC3S400
XC3S1000
XC3S1500
Pin Name
Bank
44
Table 25: FG320 Package Pinout (Continued)
FG320
Pin
Number
Type
Bank
XC3S400
XC3S1000
XC3S1500
Pin Name
FG320
Pin
Number
Type
2
IO_L20N_2
E17
I/O
3
IO_L27N_3
L14
I/O
2
IO_L20P_2
E18
I/O
3
IO_L27P_3
L13
I/O
2
IO_L21N_2
F15
I/O
3
IO_L34N_3
L15
I/O
2
IO_L21P_2
E15
I/O
3
IO_L34P_3/VREF_3
L16
VREF
2
IO_L22N_2
F14
I/O
3
IO_L35N_3
L18
I/O
2
IO_L22P_2
G14
I/O
3
IO_L35P_3
L17
I/O
2
IO_L23N_2/VREF_2
G18
VREF
3
IO_L39N_3
K13
I/O
2
IO_L23P_2
F17
I/O
3
IO_L39P_3
K14
I/O
2
IO_L24N_2
G15
I/O
3
IO_L40N_3/VREF_3
K17
VREF
2
IO_L24P_2
G16
I/O
3
IO_L40P_3
K18
I/O
2
IO_L27N_2
H13
I/O
3
VCCO_3
K12
VCCO
2
IO_L27P_2
H14
I/O
3
VCCO_3
L12
VCCO
2
IO_L34N_2/VREF_2
H16
VREF
3
VCCO_3
N16
VCCO
2
IO_L34P_2
H15
I/O
4
IO
P12
I/O
2
IO_L35N_2
H17
I/O
4
IO
V14
I/O
2
IO_L35P_2
H18
I/O
4
IO/VREF_4
R10
VREF
2
IO_L39N_2
J18
I/O
4
IO/VREF_4
U13
VREF
2
IO_L39P_2
J17
I/O
4
IO/VREF_4
V17
VREF
2
IO_L40N_2
J15
I/O
4
IO_L01N_4/VRP_4
U16
DCI
2
IO_L40P_2/VREF_2
J14
VREF
4
IO_L01P_4/VRN_4
V16
DCI
2
VCCO_2
F16
VCCO
4
IO_L06N_4/VREF_4
P14
VREF
2
VCCO_2
H12
VCCO
4
IO_L06P_4
R14
I/O
2
VCCO_2
J12
VCCO
4
IO_L09N_4
U15
I/O
3
IO
K15
I/O
4
IO_L09P_4
V15
I/O
3
IO_L01N_3/VRP_3
T17
DCI
4
IO_L10N_4
T14
I/O
3
IO_L01P_3/VRN_3
T16
DCI
4
IO_L10P_4
U14
I/O
3
IO_L16N_3
T18
I/O
4
IO_L25N_4
R13
I/O
3
IO_L16P_3
U18
I/O
4
IO_L25P_4
P13
I/O
3
IO_L17N_3
P16
I/O
4
IO_L27N_4/DIN/D0
T12
DUAL
3
IO_L17P_3/VREF_3
R16
VREF
4
IO_L27P_4/D1
R12
DUAL
3
IO_L19N_3
R17
I/O
4
IO_L28N_4
V12
I/O
3
IO_L19P_3
R18
I/O
4
IO_L28P_4
V11
I/O
3
IO_L20N_3
P18
I/O
4
IO_L29N_4
R11
I/O
3
IO_L20P_3
P17
I/O
4
IO_L29P_4
T11
I/O
3
IO_L21N_3
P15
I/O
4
IO_L30N_4/D2
N11
DUAL
3
IO_L21P_3
N15
I/O
4
IO_L30P_4/D3
P11
DUAL
3
IO_L22N_3
M14
I/O
4
IO_L31N_4/INIT_B
U10
DUAL
3
IO_L22P_3
N14
I/O
4
V10
DUAL
3
IO_L23N_3
M15
I/O
IO_L31P_4/
DOUT/BUSY
3
IO_L23P_3/VREF_3
M16
VREF
4
IO_L32N_4/GCLK1
N10
GCLK
IO_L32P_4/GCLK0
P10
GCLK
VCCO_4
M10
VCCO
3
IO_L24N_3
M18
I/O
4
3
IO_L24P_3
N17
I/O
4
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 25: FG320 Package Pinout (Continued)
XC3S400
XC3S1000
XC3S1500
Pin Name
Bank
Table 25: FG320 Package Pinout (Continued)
FG320
Pin
Number
Type
Bank
XC3S400
XC3S1000
XC3S1500
Pin Name
FG320
Pin
Number
Type
4
VCCO_4
M11
VCCO
6
IO_L20N_6
P2
I/O
4
VCCO_4
T13
VCCO
6
IO_L20P_6
P1
I/O
4
VCCO_4
U11
VCCO
6
IO_L21N_6
N4
I/O
5
IO
N8
I/O
6
IO_L21P_6
P4
I/O
5
IO
P8
I/O
6
IO_L22N_6
N5
I/O
5
IO
U6
I/O
6
IO_L22P_6
M5
I/O
5
IO/VREF_5
R9
VREF
6
IO_L23N_6
M3
I/O
5
IO_L01N_5/RDWR_B
V3
DUAL
6
IO_L23P_6
M4
I/O
5
IO_L01P_5/CS_B
V2
DUAL
6
IO_L24N_6/VREF_6
N2
VREF
5
IO_L06N_5
T5
I/O
6
IO_L24P_6
M1
I/O
5
IO_L06P_5
T4
I/O
6
IO_L27N_6
L6
I/O
5
IO_L10N_5/VRP_5
V4
DCI
6
IO_L27P_6
L5
I/O
5
IO_L10P_5/VRN_5
U4
DCI
6
IO_L34N_6/VREF_6
L3
VREF
5
IO_L15N_5
R6
I/O
6
IO_L34P_6
L4
I/O
5
IO_L15P_5
R5
I/O
6
IO_L35N_6
L2
I/O
5
IO_L16N_5
V5
I/O
6
IO_L35P_6
L1
I/O
5
IO_L16P_5
U5
I/O
6
IO_L39N_6
K5
I/O
5
IO_L27N_5/VREF_5
P6
VREF
6
IO_L39P_6
K4
I/O
5
IO_L27P_5
P7
I/O
6
IO_L40N_6
K1
I/O
5
IO_L28N_5/D6
R7
DUAL
6
IO_L40P_6/VREF_6
K2
VREF
5
IO_L28P_5/D7
T7
DUAL
6
VCCO_6
K7
VCCO
5
IO_L29N_5
V8
I/O
6
VCCO_6
L7
VCCO
5
IO_L29P_5/VREF_5
V7
VREF
6
VCCO_6
N3
VCCO
5
IO_L30N_5
R8
I/O
7
IO
J6
I/O
5
IO_L30P_5
T8
I/O
7
IO_L01N_7/VRP_7
C3
DCI
5
IO_L31N_5/D4
U9
DUAL
7
IO_L01P_7/VRN_7
C2
DCI
5
IO_L31P_5/D5
V9
DUAL
7
IO_L16N_7
C1
I/O
5
IO_L32N_5/GCLK3
N9
GCLK
7
IO_L16P_7/VREF_7
B1
VREF
5
IO_L32P_5/GCLK2
P9
GCLK
7
IO_L17N_7
D1
I/O
5
VCCO_5
M8
VCCO
7
IO_L17P_7
D2
I/O
5
VCCO_5
M9
VCCO
7
IO_L19N_7/VREF_7
E3
VREF
5
VCCO_5
T6
VCCO
7
IO_L19P_7
D3
I/O
5
VCCO_5
U8
VCCO
7
IO_L20N_7
E2
I/O
6
IO
K6
I/O
7
IO_L20P_7
E1
I/O
6
IO_L01N_6/VRP_6
T3
DCI
7
IO_L21N_7
E4
I/O
6
IO_L01P_6/VRN_6
T2
DCI
7
IO_L21P_7
F4
I/O
6
IO_L16N_6
U1
I/O
7
IO_L22N_7
G5
I/O
6
IO_L16P_6
T1
I/O
7
IO_L22P_7
F5
I/O
6
IO_L17N_6
R2
I/O
7
IO_L23N_7
G1
I/O
6
IO_L17P_6/VREF_6
R1
VREF
7
IO_L23P_7
F2
I/O
6
IO_L19N_6
R3
I/O
7
IO_L24N_7
G4
I/O
6
IO_L19P_6
P3
I/O
7
IO_L24P_7
G3
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
45
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 25: FG320 Package Pinout (Continued)
XC3S400
XC3S1000
XC3S1500
Pin Name
Bank
46
Table 25: FG320 Package Pinout (Continued)
FG320
Pin
Number
Type
Bank
XC3S400
XC3S1000
XC3S1500
Pin Name
FG320
Pin
Number
Type
7
IO_L27N_7
H5
I/O
N/A
GND
M7
GND
7
IO_L27P_7/VREF_7
H6
VREF
N/A
GND
N1
GND
7
IO_L34N_7
H4
I/O
N/A
GND
N18
GND
7
IO_L34P_7
H3
I/O
N/A
GND
T10
GND
7
IO_L35N_7
H1
I/O
N/A
GND
T9
GND
7
IO_L35P_7
H2
I/O
N/A
GND
U17
GND
7
IO_L39N_7
J1
I/O
N/A
GND
U2
GND
7
IO_L39P_7
J2
I/O
N/A
GND
V1
GND
7
IO_L40N_7/VREF_7
J5
VREF
N/A
GND
V13
GND
7
IO_L40P_7
J4
I/O
N/A
GND
V18
GND
7
VCCO_7
F3
VCCO
N/A
GND
V6
GND
7
VCCO_7
H7
VCCO
N/A
VCCAUX
B12
VCCAUX
7
VCCO_7
J7
VCCO
N/A
VCCAUX
B7
VCCAUX
N/A
GND
A1
GND
N/A
VCCAUX
G17
VCCAUX
N/A
GND
A13
GND
N/A
VCCAUX
G2
VCCAUX
N/A
GND
A18
GND
N/A
VCCAUX
M17
VCCAUX
N/A
GND
A6
GND
N/A
VCCAUX
M2
VCCAUX
N/A
GND
B17
GND
N/A
VCCAUX
U12
VCCAUX
N/A
GND
B2
GND
N/A
VCCAUX
U7
VCCAUX
N/A
GND
C10
GND
N/A
VCCINT
F12
VCCINT
N/A
GND
C9
GND
N/A
VCCINT
F13
VCCINT
N/A
GND
F1
GND
N/A
VCCINT
F6
VCCINT
N/A
GND
F18
GND
N/A
VCCINT
F7
VCCINT
N/A
GND
G12
GND
N/A
VCCINT
G13
VCCINT
N/A
GND
G7
GND
N/A
VCCINT
G6
VCCINT
N/A
GND
H10
GND
N/A
VCCINT
M13
VCCINT
N/A
GND
H11
GND
N/A
VCCINT
M6
VCCINT
N/A
GND
H8
GND
N/A
VCCINT
N12
VCCINT
N/A
GND
H9
GND
N/A
VCCINT
N13
VCCINT
N/A
GND
J11
GND
N/A
VCCINT
N6
VCCINT
N/A
GND
J16
GND
N/A
VCCINT
N7
VCCINT
N/A
GND
J3
GND
VCCAUX CCLK
T15
CONFIG
N/A
GND
J8
GND
VCCAUX DONE
R15
CONFIG
N/A
GND
K11
GND
VCCAUX HSWAP_EN
E6
CONFIG
N/A
GND
K16
GND
VCCAUX M0
P5
CONFIG
N/A
GND
K3
GND
VCCAUX M1
U3
CONFIG
N/A
GND
K8
GND
VCCAUX M2
R4
CONFIG
N/A
GND
L10
GND
VCCAUX PROG_B
E5
CONFIG
N/A
GND
L11
GND
VCCAUX TCK
E14
JTAG
N/A
GND
L8
GND
VCCAUX TDI
D4
JTAG
N/A
GND
L9
GND
VCCAUX TDO
D15
JTAG
N/A
GND
M12
GND
VCCAUX TMS
B16
JTAG
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
User I/Os by Bank
Table 26 indicates how the available user-I/O pins are distributed between the eight I/O banks on the FG320 package.
Table 26: User I/Os Per Bank in FG320 Package
Package Edge
Top
Right
Bottom
Left
I/O Bank
Maximum
I/O
Maximum
LVDS
Pairs
I/O
DUAL
DCI
VREF
GCLK
0
26
11
19
0
2
3
2
1
26
11
19
0
2
3
2
2
29
14
23
0
2
4
0
3
29
14
23
0
2
4
0
4
27
11
13
6
2
4
2
5
26
11
13
6
2
3
2
6
29
14
23
0
2
4
0
7
29
14
23
0
2
4
0
DS099-4 (v1.5) July 13, 2004
Product Specification
All Possible I/O Pins by Type
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47
R
Spartan-3 FPGA Family: Pinout Descriptions
FG320 Footprint
GND
B
L16P_7
VREF_7
3
I/O
I/O
L01N_0
VRP_0
L01P_0
VRN_0
I/O
I/O
C
L16N_7
Bank 7
D
E
F
M
VCCO_0
I/O
L19P_7
I/O
I/O
L23P_7
VCCAUX
I/O
L19N_7
VREF_7
VCCO_7
Bank 6
P
T
U
V
I/O
L28P_0
I/O
I/O
L29N_0
PROG_B HSWAP_
EN
I/O
I/O
L21P_7
L22P_7
I/O
I/O
I/O
L24N_7
L22N_7
I/O
I/O
L34N_7
L27N_7
I/O
L40P_6
VREF_6
I/O
I/O
L35P_6
L35N_6
I/O
L24P_6
GND
VCCAUX
GND
I/O
L34N_6
VREF_6
GND
L24N_6
VREF_6
I/O
L40P_7
I/O
I/O
L39P_6
L39N_6
I/O
I/O
I/O
L23P_6
L22P_6
I/O
I/O
L21N_6
L22N_6
I/O
L21P_6
I/O
L16P_6
I/O
L16N_6
GND
I/O
I/O
L17N_6
L19N_6
I/O
I/O
L01P_6
VRN_6
L01N_6
VRP_6
GND
M1
M2
I/O
I/O
L01N_5
RDWR_B
L10N_5
VRP_5
GND
I/O
I/O
I/O
I/O
L32N_0
GCLK7
L32N_1
GCLK5
VCCAUX
I/O
I/O
L30N_1
L28N_1
I/O
VCCO_1
I/O
I/O
L32P_1
GCLK4
L29N_1
VCCO_0 VCCO_0
VCCO_1
VCCO_1
GND
GND
GND
VCCO_2
I/O
VCCINT VCCINT
I/O
VCCO_6
GND
GND
VCCO_3
VCCO_6
GND
GND
GND
VCCO_3
VCCO_4
VCCO_4
GND
VCCINT
GND
VCCINT
VCCINT VCCINT
I/O
I/O
L16N_5
I/O
L27N_5
VREF_5
L27P_5
I/O
L28N_5
D6
I/O
VCCO_5 VCCO_5
I/O
I/O
I/O
I/O
L32N_5
GCLK3
L32N_4
GCLK1
L30N_4
D2
I/O
I/O
I/O
I/O
L32P_5
GCLK2
L32P_4
GCLK0
L30P_4
D3
I/O
I/O
I/O
I/O
L30N_5
VREF_5
VREF_4
L29N_4
GND
GND
I/O
VCCO_5
L28P_5
D7
L30P_5
I/O
VCCAUX
VCCO_5
GND
L29P_5
VREF_5
I/O
GND
I/O
L29N_5
I/O
I/O
L31N_5
D4
L31N_4
INIT_B
I/O
L31P_5
D5
I/O
I/O
L27P_4
D1
L27N_4
DIN
D0
VCCO_4
VCCAUX
I/O
L31P_4
DOUT
BUSY
I/O
I/O
L28P_4
L28N_4
Bank 5
GND
I/O
L15P_1
TDO
I/O
L17P_2
VREF_2
I/O
I/O
L20N_2
L20P_2
I/O
I/O
L22N_2
L21N_2
VCCO_2
I/O
I/O
I/O
L22P_2
L24N_2
L24P_2
I/O
I/O
L40P_2
VREF_2
I/O
I/O
L39N_3
L39P_3
I/O
L40N_2
I/O
I/O
I/O
L27N_3
L34N_3
I/O
I/O
L22N_3
L23N_3
I/O
I/O
L22P_3
L21P_3
I/O
L06N_4
VREF_4
I/O
I/O
L25N_4
L06P_4
I/O
L10N_4
I/O
L34N_2
VREF_2
GND
I/O
L23P_2
GND
I/O
VCCAUX
L23N_2
VREF_2
I/O
I/O
L35N_2
L35P_2
I/O
I/O
L39P_2
L39N_2
I/O
I/O
L27P_3
VCCO_4
I/O
L17N_2
I/O
L16P_2
I/O
L34P_2
I/O
I/O
L19N_2
I/O
L16N_2
L19P_2
I/O
L25P_4
I/O
L01P_2
VRN_2
GND
I/O
L27P_2
VCCINT
I/O
L01N_2
VRP_2
18
L21P_2
TCK
I/O
I/O
L29P_4
TMS
L27N_2
VCCINT VCCINT
I/O
L01P_1
VRN_1
I/O
I/O
L27N_1
L01N_1
VRP_1
L15N_1
L24N_1
I/O
L10N_1
VREF_1
I/O
I/O
L27P_1
17
I/O
L10P_1
L24P_1
I/O
16
I/O
I/O
I/O
L29P_1
15
I/O
L16P_1
I/O
I/O
L16P_5
I/O
L16N_1
L28P_1
I/O
GND
GND
14
I/O
L32P_0
GCLK6
I/O
L29P_0
13
L30P_1
VCCO_2
L15N_5
I/O
I/O
GND
VCCO_1
GND
I/O
L06N_5
L01P_5
CS_B
I/O
L31P_1
I/O
VREF_1
GND
L15P_5
I/O
I/O
I/O
L31N_0
I/O
VCCO_7
I/O
M0
L06P_5
L10P_5
VRN_5
L31N_1
VREF_1
I/O
I/O
I/O
L31P_0
VREF_0
GND
L27N_6
L19P_6
I/O
12
VCCO_7
I/O
I/O
I/O
11
I/O
L27P_6
L20N_6
10
L27P_7
VREF_7
I/O
I/O
GND
VCCINT
L34P_6
L20P_6
L17P_6
VREF_6
VCCINT VCCINT
9
I/O
L40N_7
VREF_7
L23N_6
VCCO_6
I/O
L28N_0
I/O
I/O
I/O
I/O
L27N_0
L27P_0
L34P_7
L39P_7
VCCO_0
I/O
I/O
I/O
VCCAUX
VREF_0
L35P_7
L39N_7
I/O
L30P_0
I/O
I/O
I/O
R
I/O
L21N_7
I/O
L10P_0
L24P_7
I/O
N
TDI
L35N_7
L40N_6
L
I/O
L10N_0
I/O
I/O
K
I/O
L09P_0
I/O
L17P_7
I/O
J
I/O
L25P_0
I/O
L23N_7
H
I/O
L25N_0
8
L30N_0
GND
I/O
L01N_7
VRP_7
L20N_7
I/O
L15P_0
7
L09N_0
I/O
I/O
I/O
L15N_0
Bank 1
6
I/O
L01P_7
VRN_7
L20P_7
5
VREF_0
L17N_7
GND
G
GND
4
GND
I/O
L34P_3
VREF_3
L40N_3
VREF_3
I/O
L40P_3
I/O
I/O
L35P_3
L35N_3
I/O
L23P_3
VREF_3
VCCO_3
VCCAUX
I/O
L24P_3
I/O
L24N_3
GND
I/O
I/O
I/O
I/O
L21N_3
L17N_3
L20P_3
L20N_3
DONE
L17P_3
VREF_3
I/O
I/O
CCLK
L01P_3
VRN_3
L01N_3
VRP_3
I/O
I/O
I/O
I/O
VREF_4
L10P_4
L09N_4
GND
I/O
I/O
L09P_4
I/O
I/O
L19N_3
L19P_3
I/O
L16N_3
I/O
L01N_4
VRP_4
I/O
L01P_4
VRN_4
Bank 2
A
2
GND
I/O
VREF_4
Bank 3
Bank 0
1
I/O
L16P_3
GND
Bank 4
ds099-3_16_121103
Figure 12: FG320 Package Footprint (top view)
156
16
7
0
48
I/O: Unrestricted, general-purpose user I/O
DCI: User I/O or reference resistor input for
bank
CONFIG: Dedicated configuration pins
N.C.: No unconnected pins in this package
12
8
4
40
DUAL: Configuration pin, then possible
user I/O
GCLK: User I/O or global clock buffer input
JTAG: Dedicated JTAG port pins
GND: Ground
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1-800-255-7778
29
28
VREF: User I/O or input voltage reference for
bank
VCCO: Output voltage supply for bank
12
VCCINT: Internal core voltage supply
(+1.2V)
8
VCCAUX: Auxiliary voltage supply
(+2.5V)
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
FG456: 456-lead Fine-pitch Ball Grid
Array
The 456-lead fine-pitch ball grid array package, FG456,
supports three different Spartan-3 devices, including the
XC3S400, the XC3S1000, and the XC3S1500. The footprints for the XC3S1000 and XC3S1500 are identical, as
shown in Table 27 and Figure 13. The XC3S400, however,
has fewer I/O pins which consequently results in 69 unconnected pins on the FG456 package, labeled as “N.C.” In
Table 27 and Figure 13, these unconnected pins are indicated with a black diamond symbol (‹).
All the package pins appear in Table 27 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
If there is a difference between the XC3S400 pinout and the
pinout for the XC3S1000 and XC3S1500, then that difference is highlighted in Table 27. If the table entry is shaded
grey, then there is an unconnected pin on the XC3S400 that
maps to a user-I/O pin on the XC3S1000 and XC3S1500. If
the table entry is shaded tan, then the unconnected pin on
the XC3S400 maps to a VREF-type pin on the XC3S1000
and XC3S1500. If the other VREF pins in the bank all connect to a voltage reference to support a special I/O standard, then also connect the N.C. pin on the XC3S400 to the
same VREF voltage. This provides maximum flexibility as
you could potentially migrate a design from the XC3S400
device to an XC3S1000 or XC3S1500 FPGA without changing the printed circuit board.
Table 27: FG456 Package Pinout (Continued)
Bank
Bank
3S1000
3S1500
Pin Name
3S400
Pin Name
FG456
Pin
Number
Type
3S1000
3S1500
Pin Name
FG456
Pin
Number
Type
0
IO_L10N_0
IO_L10N_0
E6
I/O
0
IO_L10P_0
IO_L10P_0
D6
I/O
0
IO_L15N_0
IO_L15N_0
C6
I/O
0
IO_L15P_0
IO_L15P_0
B6
I/O
0
IO_L16N_0
IO_L16N_0
E7
I/O
0
IO_L16P_0
IO_L16P_0
D7
I/O
0
N.C. (‹)
IO_L19N_0
B7
I/O
0
N.C. (‹)
IO_L19P_0
A7
I/O
0
N.C. (‹)
IO_L22N_0
E8
I/O
0
N.C. (‹)
IO_L22P_0
D8
I/O
0
IO_L24N_0
IO_L24N_0
B8
I/O
0
IO_L24P_0
IO_L24P_0
A8
I/O
0
IO_L25N_0
IO_L25N_0
F9
I/O
0
IO_L25P_0
IO_L25P_0
E9
I/O
0
IO_L27N_0
IO_L27N_0
B9
I/O
0
IO_L27P_0
IO_L27P_0
A9
I/O
0
IO_L28N_0
IO_L28N_0
F10
I/O
0
IO_L28P_0
IO_L28P_0
E10
I/O
0
IO_L29N_0
IO_L29N_0
C10
I/O
0
IO_L29P_0
IO_L29P_0
B10
I/O
0
IO_L30N_0
IO_L30N_0
F11
I/O
0
IO_L30P_0
IO_L30P_0
E11
I/O
0
IO_L31N_0
IO_L31N_0
D11
I/O
0
IO_L31P_0/
VREF_0
IO_L31P_0/
VREF_0
C11
VREF
0
IO_L32N_0/
GCLK7
IO_L32N_0/
GCLK7
B11
GCLK
0
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
A11
GCLK
Pinout Table
Table 27: FG456 Package Pinout
3S400
Pin Name
0
VCCO_0
VCCO_0
C8
VCCO
0
IO
IO
A10
I/O
0
VCCO_0
VCCO_0
F8
VCCO
0
IO
IO
D9
I/O
0
VCCO_0
VCCO_0
G9
VCCO
0
IO
IO
D10
I/O
0
VCCO_0
VCCO_0
G10
VCCO
0
IO
IO
F6
I/O
0
VCCO_0
VCCO_0
G11
VCCO
0
IO/VREF_0
IO/VREF_0
A3
VREF
1
IO
IO
A12
I/O
0
IO/VREF_0
IO/VREF_0
C7
VREF
1
IO
IO
E16
I/O
0
N.C. (‹)
IO/VREF_0
E5
VREF
1
IO
IO
F12
I/O
0
IO/VREF_0
IO/VREF_0
F7
VREF
1
IO
IO
F13
I/O
0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
B4
DCI
1
IO
IO
F16
I/O
0
IO_L01P_0/
VRN_0
IO_L01P_0/
VRN_0
A4
DCI
1
IO
IO
F17
I/O
1
IO/VREF_1
IO/VREF_1
E13
VREF
0
IO_L06N_0
IO_L06N_0
D5
I/O
1
N.C. (‹)
IO/VREF_1
F14
VREF
1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
C19
DCI
1
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
B20
DCI
0
IO_L06P_0
IO_L06P_0
C5
I/O
0
IO_L09N_0
IO_L09N_0
B5
I/O
0
IO_L09P_0
IO_L09P_0
A5
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
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1-800-255-7778
49
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 27: FG456 Package Pinout (Continued)
3S400
Pin Name
3S1000
3S1500
Pin Name
1
IO_L06N_1/
VREF_1
1
FG456
Pin
Number
Type
Bank
IO_L06N_1/
VREF_1
A19
VREF
2
IO_L16P_2
2
IO_L06P_1
IO_L06P_1
B19
I/O
2
1
IO_L09N_1
IO_L09N_1
C18
I/O
1
IO_L09P_1
IO_L09P_1
D18
I/O
2
1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
A18
VREF
1
IO_L10P_1
IO_L10P_1
B18
I/O
1
IO_L15N_1
IO_L15N_1
D17
I/O
1
IO_L15P_1
IO_L15P_1
E17
I/O
1
IO_L16N_1
IO_L16N_1
B17
I/O
1
IO_L16P_1
IO_L16P_1
C17
I/O
1
N.C. (‹)
IO_L19N_1
C16
I/O
1
N.C. (‹)
IO_L19P_1
D16
I/O
1
N.C. (‹)
IO_L22N_1
A16
I/O
1
N.C. (‹)
IO_L22P_1
B16
I/O
1
IO_L24N_1
IO_L24N_1
D15
I/O
1
IO_L24P_1
IO_L24P_1
E15
I/O
1
IO_L25N_1
IO_L25N_1
B15
I/O
1
IO_L25P_1
IO_L25P_1
A15
I/O
1
IO_L27N_1
IO_L27N_1
D14
I/O
1
IO_L27P_1
IO_L27P_1
E14
I/O
1
IO_L28N_1
IO_L28N_1
A14
I/O
1
IO_L28P_1
IO_L28P_1
B14
I/O
1
IO_L29N_1
IO_L29N_1
C13
I/O
1
IO_L29P_1
IO_L29P_1
D13
I/O
1
IO_L30N_1
IO_L30N_1
A13
I/O
1
IO_L30P_1
IO_L30P_1
B13
I/O
1
IO_L31N_1/
VREF_1
IO_L31N_1/
VREF_1
D12
VREF
1
IO_L31P_1
IO_L31P_1
E12
I/O
Bank
1
1
1
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
B12
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
C12
VCCO_1
VCCO_1
C15
FG456
Pin
Number
Type
IO_L16P_2
D19
I/O
IO_L17N_2
IO_L17N_2
D21
I/O
IO_L17P_2
D22
VREF
/VREF_2
IO_L17P_2/
VREF_2
IO_L19N_2
IO_L19N_2
E18
I/O
2
IO_L19P_2
IO_L19P_2
F18
I/O
2
IO_L20N_2
IO_L20N_2
E19
I/O
2
IO_L20P_2
IO_L20P_2
E20
I/O
2
IO_L21N_2
IO_L21N_2
E21
I/O
2
IO_L21P_2
IO_L21P_2
E22
I/O
2
IO_L22N_2
IO_L22N_2
G17
I/O
2
IO_L22P_2
IO_L22P_2
G18
I/O
2
IO_L23N_2
F19
VREF
3S400
Pin Name
3S1000
3S1500
Pin Name
/VREF_2
IO_L23N_2/
VREF_2
2
IO_L23P_2
IO_L23P_2
G19
I/O
2
IO_L24N_2
IO_L24N_2
F20
I/O
2
IO_L24P_2
IO_L24P_2
F21
I/O
2
N.C. (‹)
IO_L26N_2
G20
I/O
2
N.C. (‹)
IO_L26P_2
H19
I/O
2
IO_L27N_2
IO_L27N_2
G21
I/O
2
IO_L27P_2
IO_L27P_2
G22
I/O
2
N.C. (‹)
IO_L28N_2
H18
I/O
2
N.C. (‹)
IO_L28P_2
J17
I/O
2
N.C. (‹)
IO_L29N_2
H21
I/O
2
N.C. (‹)
IO_L29P_2
H22
I/O
2
N.C. (‹)
IO_L31N_2
J18
I/O
2
N.C. (‹)
IO_L31P_2
J19
I/O
2
N.C. (‹)
IO_L32N_2
J21
I/O
2
N.C. (‹)
IO_L32P_2
J22
I/O
2
N.C. (‹)
IO_L33N_2
K17
I/O
2
N.C. (‹)
IO_L33P_2
K18
I/O
2
IO_L34N_2/
VREF_2
IO_L34N_2/
VREF_2
K19
VREF
2
IO_L34P_2
IO_L34P_2
K20
I/O
VCCO
2
IO_L35N_2
IO_L35N_2
K21
I/O
IO_L35P_2
IO_L35P_2
K22
I/O
GCLK
GCLK
1
VCCO_1
VCCO_1
F15
VCCO
2
1
VCCO_1
VCCO_1
G12
VCCO
2
IO_L38N_2
IO_L38N_2
L17
I/O
1
VCCO_1
VCCO_1
G13
VCCO
2
IO_L38P_2
IO_L38P_2
L18
I/O
1
VCCO_1
VCCO_1
G14
VCCO
2
IO_L39N_2
IO_L39N_2
L19
I/O
2
IO
IO
C22
I/O
2
IO_L39P_2
IO_L39P_2
L20
I/O
2
IO_L40N_2
IO_L40N_2
L21
I/O
2
IO_L40P_2/
VREF_2
IO_L40P_2/
VREF_2
L22
VREF
2
VCCO_2
VCCO_2
H17
VCCO
2
VCCO_2
VCCO_2
H20
VCCO
2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
C20
DCI
2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
C21
DCI
IO_L16N_2
IO_L16N_2
D20
2
50
Table 27: FG456 Package Pinout (Continued)
I/O
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 27: FG456 Package Pinout (Continued)
Bank
3S1000
3S1500
Pin Name
3S400
Pin Name
Table 27: FG456 Package Pinout (Continued)
FG456
Pin
Number
Type
Bank
3S400
Pin Name
3S1000
3S1500
Pin Name
FG456
Pin
Number
Type
2
VCCO_2
VCCO_2
J16
VCCO
3
IO_L38P_3
IO_L38P_3
M17
I/O
2
VCCO_2
VCCO_2
K16
VCCO
3
IO_L39N_3
IO_L39N_3
M20
I/O
2
VCCO_2
VCCO_2
L16
VCCO
3
IO_L39P_3
IO_L39P_3
M19
I/O
3
IO
IO
Y21
I/O
3
IO_L01N_3/
VRP_3
Y20
DCI
IO_L40N_3/
VREF_3
VREF
IO_L01N_3/
VRP_3
IO_L40N_3/
VREF_3
M22
3
3
IO_L40P_3
IO_L40P_3
M21
I/O
IO_L01P_3/
VRN_3
IO_L01P_3/
VRN_3
Y19
3
VCCO_3
VCCO_3
M16
VCCO
3
VCCO_3
VCCO_3
N16
VCCO
3
IO_L16N_3
IO_L16N_3
W22
I/O
3
VCCO_3
VCCO_3
P16
VCCO
3
IO_L16P_3
IO_L16P_3
Y22
I/O
3
VCCO_3
VCCO_3
R17
VCCO
3
IO_L17N_3
IO_L17N_3
V19
I/O
3
VCCO_3
VCCO_3
R20
VCCO
3
IO_L17P_3/
VREF_3
IO_L17P_3/
VREF_3
W19
VREF
4
IO
IO
U16
I/O
3
IO_L19N_3
IO_L19N_3
W21
I/O
4
IO
IO
U17
I/O
3
IO_L19P_3
IO_L19P_3
W20
I/O
4
IO
IO
W13
I/O
3
IO_L20N_3
IO_L20N_3
U19
I/O
4
IO
IO
W14
I/O
3
IO_L20P_3
IO_L20P_3
V20
I/O
4
IO/VREF_4
IO/VREF_4
AB13
VREF
3
IO_L21N_3
IO_L21N_3
V22
I/O
4
IO/VREF_4
IO/VREF_4
V18
VREF
3
IO_L21P_3
IO_L21P_3
V21
I/O
4
IO/VREF_4
IO/VREF_4
Y16
VREF
3
IO_L22N_3
IO_L22N_3
T17
I/O
4
IO_L01N_4/
VRP_4
IO_L01N_4/
VRP_4
AA20
DCI
3
IO_L22P_3
IO_L22P_3
U18
I/O
4
IO_L23N_3
U21
I/O
IO_L01P_4/
VRN_4
DCI
IO_L23N_3
IO_L01P_4/
VRN_4
AB20
3
3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
U20
VREF
4
N.C. (‹)
IO_L05N_4
AA19
I/O
4
N.C. (‹)
IO_L05P_4
AB19
I/O
3
IO_L24N_3
IO_L24N_3
R18
I/O
4
IO_L24P_3
T18
I/O
IO_L06N_4/
VREF_4
VREF
IO_L24P_3
IO_L06N_4/
VREF_4
W18
3
3
N.C. (‹)
IO_L26N_3
T20
I/O
4
IO_L06P_4
IO_L06P_4
Y18
I/O
3
N.C. (‹)
IO_L26P_3
T19
I/O
4
IO_L09N_4
IO_L09N_4
AA18
I/O
3
IO_L27N_3
IO_L27N_3
T22
I/O
4
IO_L09P_4
IO_L09P_4
AB18
I/O
3
IO_L27P_3
IO_L27P_3
T21
I/O
4
IO_L10N_4
IO_L10N_4
V17
I/O
3
N.C. (‹)
IO_L28N_3
R22
I/O
4
IO_L10P_4
IO_L10P_4
W17
I/O
3
N.C. (‹)
IO_L28P_3
R21
I/O
4
IO_L15N_4
IO_L15N_4
Y17
I/O
3
N.C. (‹)
IO_L29N_3
P19
I/O
4
IO_L15P_4
IO_L15P_4
AA17
I/O
3
N.C. (‹)
IO_L29P_3
R19
I/O
4
IO_L16N_4
IO_L16N_4
V16
I/O
3
N.C. (‹)
IO_L31N_3
P18
I/O
4
IO_L16P_4
IO_L16P_4
W16
I/O
3
N.C. (‹)
IO_L31P_3
P17
I/O
4
N.C. (‹)
IO_L19N_4
AA16
I/O
3
N.C. (‹)
IO_L32N_3
P22
I/O
4
N.C. (‹)
IO_L19P_4
AB16
I/O
3
N.C. (‹)
IO_L32P_3
P21
I/O
4
N.C. (‹)
VREF
N.C. (‹)
IO_L33N_3
N18
I/O
IO_L22N_4/
VREF_4
V15
3
3
N.C. (‹)
IO_L33P_3
N17
I/O
4
N.C. (‹)
IO_L22P_4
W15
I/O
IO_L24N_4
IO_L24N_4
AA15
I/O
3
DCI
3
IO_L34N_3
IO_L34N_3
N20
I/O
4
3
IO_L34P_3/
VREF_3
IO_L34P_3/
VREF_3
N19
VREF
4
IO_L24P_4
IO_L24P_4
AB15
I/O
4
IO_L25N_4
IO_L25N_4
U14
I/O
3
IO_L35N_3
IO_L35N_3
N22
I/O
4
IO_L25P_4
IO_L25P_4
V14
I/O
3
IO_L35P_3
IO_L35P_3
N21
I/O
4
IO_L38N_3
M18
I/O
IO_L27N_4/
DIN/D0
DUAL
IO_L38N_3
IO_L27N_4/
DIN/D0
AA14
3
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
51
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 27: FG456 Package Pinout (Continued)
3S400
Pin Name
3S1000
3S1500
Pin Name
4
IO_L27P_4/
D1
4
FG456
Pin
Number
Type
Bank
IO_L27P_4/
D1
AB14
DUAL
5
N.C. (‹)
5
IO_L28N_4
IO_L28N_4
U13
I/O
4
IO_L28P_4
IO_L28P_4
V13
I/O
4
IO_L29N_4
IO_L29N_4
Y13
4
IO_L29P_4
IO_L29P_4
AA13
4
IO_L30N_4/
D2
IO_L30N_4/
D2
U12
4
IO_L30P_4/
D3
IO_L30P_4/
D3
V12
DUAL
4
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
W12
DUAL
4
IO_L31P_4/
DOUT/BUSY
IO_L31P_4/
DOUT/BUSY
Y12
DUAL
4
IO_L32N_4/
GCLK1
IO_L32N_4/
GCLK1
AA12
GCLK
4
IO_L32P_4/
GCLK0
IO_L32P_4/
GCLK0
AB12
GCLK
4
VCCO_4
VCCO_4
T12
VCCO
4
VCCO_4
VCCO_4
T13
VCCO
4
VCCO_4
VCCO_4
T14
VCCO
4
VCCO_4
VCCO_4
U15
VCCO
4
VCCO_4
VCCO_4
Y15
VCCO
5
IO
IO
U7
I/O
5
N.C. (‹)
IO
U9
I/O
5
IO
IO
U10
I/O
5
IO
IO
U11
I/O
5
IO
IO
V7
I/O
5
IO
IO
V10
I/O
5
IO/VREF_5
IO/VREF_5
AB11
VREF
5
IO/VREF_5
IO/VREF_5
U6
VREF
5
IO_L01N_5/
RDWR_B
IO_L01N_5/
RDWR_B
Y4
DUAL
5
IO_L01P_5/
CS_B
IO_L01P_5/
CS_B
AA3
DUAL
5
IO_L06N_5
IO_L06N_5
AB4
I/O
5
IO_L06P_5
IO_L06P_5
AA4
I/O
5
IO_L09N_5
IO_L09N_5
Y5
I/O
5
IO_L09P_5
IO_L09P_5
W5
I/O
5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
AB5
DCI
5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
AA5
DCI
5
IO_L15N_5
IO_L15N_5
W6
I/O
5
IO_L15P_5
IO_L15P_5
V6
5
IO_L16N_5
IO_L16N_5
AA6
Bank
5
52
Table 27: FG456 Package Pinout (Continued)
IO_L16P_5
IO_L16P_5
Y6
FG456
Pin
Number
Type
IO_L19N_5
Y7
I/O
N.C. (‹)
IO_L19P_5/
VREF_5
W7
VREF
5
N.C. (‹)
IO_L22N_5
AB7
I/O
I/O
5
N.C. (‹)
IO_L22P_5
AA7
I/O
I/O
5
IO_L24N_5
IO_L24N_5
W8
I/O
DUAL
5
IO_L24P_5
IO_L24P_5
V8
I/O
5
IO_L25N_5
IO_L25N_5
AB8
I/O
5
IO_L25P_5
IO_L25P_5
AA8
I/O
5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
W9
VREF
5
IO_L27P_5
IO_L27P_5
V9
I/O
5
IO_L28N_5/
D6
IO_L28N_5/
D6
AB9
DUAL
5
IO_L28P_5/
D7
IO_L28P_5/
D7
AA9
DUAL
5
IO_L29N_5
IO_L29N_5
Y10
I/O
5
IO_L29P_5/
VREF_5
IO_L29P_5/
VREF_5
W10
VREF
5
IO_L30N_5
IO_L30N_5
AB10
I/O
5
IO_L30P_5
IO_L30P_5
AA10
I/O
5
IO_L31N_5/
D4
IO_L31N_5/
D4
W11
DUAL
5
IO_L31P_5/
D5
IO_L31P_5/
D5
V11
DUAL
5
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
AA11
GCLK
5
IO_L32P_5/
GCLK2
IO_L32P_5/
GCLK2
Y11
GCLK
5
VCCO_5
VCCO_5
T9
VCCO
5
VCCO_5
VCCO_5
T10
VCCO
5
VCCO_5
VCCO_5
T11
VCCO
5
VCCO_5
VCCO_5
U8
VCCO
5
VCCO_5
VCCO_5
Y8
VCCO
6
IO
IO
Y1
I/O
6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
Y3
DCI
6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
Y2
DCI
6
IO_L16N_6
IO_L16N_6
W4
I/O
6
IO_L16P_6
IO_L16P_6
W3
I/O
6
IO_L17N_6
IO_L17N_6
W2
I/O
6
IO_L17P_6/
VREF_6
IO_L17P_6/
VREF_6
W1
VREF
I/O
6
IO_L19N_6
IO_L19N_6
V5
I/O
I/O
6
IO_L19P_6
IO_L19P_6
U5
I/O
I/O
6
IO_L20N_6
IO_L20N_6
V4
I/O
www.xilinx.com
1-800-255-7778
3S400
Pin Name
3S1000
3S1500
Pin Name
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 27: FG456 Package Pinout (Continued)
Bank
3S1000
3S1500
Pin Name
3S400
Pin Name
Table 27: FG456 Package Pinout (Continued)
FG456
Pin
Number
Type
Bank
3S400
Pin Name
3S1000
3S1500
Pin Name
FG456
Pin
Number
Type
6
IO_L20P_6
IO_L20P_6
V3
I/O
7
IO_L16N_7
IO_L16N_7
D1
I/O
6
IO_L21N_6
IO_L21N_6
V2
I/O
7
IO_L21P_6
V1
I/O
IO_L16P_7/
VREF_7
VREF
IO_L21P_6
IO_L16P_7/
VREF_7
C1
6
6
IO_L22N_6
IO_L22N_6
T6
I/O
7
IO_L17N_7
IO_L17N_7
E4
I/O
6
IO_L22P_6
IO_L22P_6
T5
I/O
7
IO_L17P_7
IO_L17P_7
D4
I/O
7
IO_L19N_7/
VREF_7
IO_L19N_7/
VREF_7
D3
VREF
7
IO_L19P_7
IO_L19P_7
D2
I/O
7
IO_L20N_7
IO_L20N_7
F4
I/O
IO_L20P_7
IO_L20P_7
E3
I/O
6
IO_L23N_6
IO_L23N_6
U4
I/O
6
IO_L23P_6
IO_L23P_6
T4
I/O
6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
U3
VREF
6
IO_L24P_6
IO_L24P_6
U2
I/O
7
6
N.C. (‹)
IO_L26N_6
T3
I/O
7
IO_L21N_7
IO_L21N_7
E1
I/O
IO_L21P_7
IO_L21P_7
E2
I/O
6
N.C. (‹)
IO_L26P_6
R4
I/O
7
6
IO_L27N_6
IO_L27N_6
T2
I/O
7
IO_L22N_7
IO_L22N_7
G6
I/O
IO_L22P_7
IO_L22P_7
F5
I/O
6
IO_L27P_6
IO_L27P_6
T1
I/O
7
6
N.C. (‹)
IO_L28N_6
R5
I/O
7
IO_L23N_7
IO_L23N_7
F2
I/O
IO_L23P_7
IO_L23P_7
F3
I/O
6
N.C. (‹)
IO_L28P_6
P6
I/O
7
6
N.C. (‹)
IO_L29N_6
R2
I/O
7
IO_L24N_7
IO_L24N_7
H5
I/O
IO_L24P_7
IO_L24P_7
G5
I/O
6
N.C. (‹)
IO_L29P_6
R1
I/O
7
6
N.C. (‹)
IO_L31N_6
P5
I/O
7
N.C. (‹)
IO_L26N_7
G3
I/O
N.C. (‹)
IO_L26P_7
G4
I/O
6
N.C. (‹)
IO_L31P_6
P4
I/O
7
6
N.C. (‹)
IO_L32N_6
P2
I/O
7
IO_L27N_7
IO_L27N_7
G1
I/O
7
IO_L27P_7/
VREF_7
IO_L27P_7/
VREF_7
G2
VREF
7
N.C. (‹)
IO_L28N_7
H1
I/O
7
N.C. (‹)
IO_L28P_7
H2
I/O
7
N.C. (‹)
IO_L29N_7
J4
I/O
N.C. (‹)
IO_L29P_7
H4
I/O
6
N.C. (‹)
IO_L32P_6
P1
I/O
6
N.C. (‹)
IO_L33N_6
N6
I/O
6
N.C. (‹)
IO_L33P_6
N5
I/O
6
IO_L34N_6/
VREF_6
IO_L34N_6/
VREF_6
N4
VREF
6
IO_L34P_6
IO_L34P_6
N3
I/O
7
6
IO_L35N_6
IO_L35N_6
N2
I/O
7
N.C. (‹)
IO_L31N_7
J5
I/O
I/O
7
N.C. (‹)
IO_L31P_7
J6
I/O
N.C. (‹)
IO_L32N_7
J1
I/O
6
IO_L35P_6
IO_L35P_6
N1
6
IO_L38N_6
IO_L38N_6
M6
I/O
7
6
IO_L38P_6
IO_L38P_6
M5
I/O
7
N.C. (‹)
IO_L32P_7
J2
I/O
6
IO_L39N_6
IO_L39N_6
M4
I/O
7
N.C. (‹)
IO_L33N_7
K5
I/O
N.C. (‹)
IO_L33P_7
K6
I/O
6
IO_L39P_6
IO_L39P_6
M3
I/O
7
6
IO_L40N_6
IO_L40N_6
M2
I/O
7
IO_L34N_7
IO_L34N_7
K3
I/O
VREF
7
IO_L34P_7
IO_L34P_7
K4
I/O
7
IO_L35N_7
IO_L35N_7
K1
I/O
6
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
M1
6
VCCO_6
VCCO_6
M7
VCCO
7
IO_L35P_7
IO_L35P_7
K2
I/O
6
VCCO_6
VCCO_6
N7
VCCO
7
IO_L38N_7
IO_L38N_7
L5
I/O
6
VCCO_6
VCCO_6
P7
VCCO
7
IO_L38P_7
IO_L38P_7
L6
I/O
6
VCCO_6
VCCO_6
R3
VCCO
7
IO_L39N_7
IO_L39N_7
L3
I/O
6
VCCO_6
VCCO_6
R6
VCCO
7
IO_L39P_7
IO_L39P_7
L4
I/O
7
IO
IO
C2
I/O
7
IO_L01N_7/
VRP_7
C3
DCI
IO_L40N_7/
VREF_7
VREF
IO_L01N_7/
VRP_7
IO_L40N_7/
VREF_7
L1
7
7
IO_L40P_7
IO_L40P_7
L2
I/O
7
IO_L01P_7/
VRN_7
IO_L01P_7/
VRN_7
C4
DCI
7
VCCO_7
VCCO_7
H3
VCCO
7
VCCO_7
VCCO_7
H6
VCCO
DS099-4 (v1.5) July 13, 2004
Product Specification
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53
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 27: FG456 Package Pinout (Continued)
Bank
54
3S400
Pin Name
3S1000
3S1500
Pin Name
Table 27: FG456 Package Pinout (Continued)
FG456
Pin
Number
Type
Bank
3S400
Pin Name
3S1000
3S1500
Pin Name
FG456
Pin
Number
Type
P3
GND
7
VCCO_7
VCCO_7
J7
VCCO
N/A
GND
GND
7
VCCO_7
VCCO_7
K7
VCCO
N/A
GND
GND
P9
GND
7
VCCO_7
VCCO_7
L7
VCCO
N/A
GND
GND
P10
GND
N/A
GND
GND
A1
GND
N/A
GND
GND
P11
GND
N/A
GND
GND
A22
GND
N/A
GND
GND
P12
GND
N/A
GND
GND
AA2
GND
N/A
GND
GND
P13
GND
N/A
GND
GND
AA21
GND
N/A
GND
GND
P14
GND
N/A
GND
GND
AB1
GND
N/A
GND
GND
P20
GND
N/A
GND
GND
AB22
GND
N/A
GND
GND
Y9
GND
N/A
GND
GND
B2
GND
N/A
GND
GND
Y14
GND
N/A
GND
GND
B21
GND
N/A
VCCAUX
VCCAUX
A6
VCCAUX
N/A
GND
GND
C9
GND
N/A
VCCAUX
VCCAUX
A17
VCCAUX
N/A
GND
GND
C14
GND
N/A
VCCAUX
VCCAUX
AB6
VCCAUX
N/A
GND
GND
J3
GND
N/A
VCCAUX
VCCAUX
AB17
VCCAUX
N/A
GND
GND
J9
GND
N/A
VCCAUX
VCCAUX
F1
VCCAUX
N/A
GND
GND
J10
GND
N/A
VCCAUX
VCCAUX
F22
VCCAUX
N/A
GND
GND
J11
GND
N/A
VCCAUX
VCCAUX
U1
VCCAUX
N/A
GND
GND
J12
GND
N/A
VCCAUX
VCCAUX
U22
VCCAUX
N/A
GND
GND
J13
GND
N/A
VCCINT
VCCINT
G7
VCCINT
N/A
GND
GND
J14
GND
N/A
VCCINT
VCCINT
G8
VCCINT
N/A
GND
GND
J20
GND
N/A
VCCINT
VCCINT
G15
VCCINT
N/A
GND
GND
K9
GND
N/A
VCCINT
VCCINT
G16
VCCINT
N/A
GND
GND
K10
GND
N/A
VCCINT
VCCINT
H7
VCCINT
N/A
GND
GND
K11
GND
N/A
VCCINT
VCCINT
H16
VCCINT
N/A
GND
GND
K12
GND
N/A
VCCINT
VCCINT
R7
VCCINT
N/A
GND
GND
K13
GND
N/A
VCCINT
VCCINT
R16
VCCINT
N/A
GND
GND
K14
GND
N/A
VCCINT
VCCINT
T7
VCCINT
N/A
GND
GND
L9
GND
N/A
VCCINT
VCCINT
T8
VCCINT
N/A
GND
GND
L10
GND
N/A
VCCINT
VCCINT
T15
VCCINT
N/A
GND
GND
L11
GND
N/A
VCCINT
VCCINT
T16
VCCINT
N/A
GND
GND
L12
GND
VCCAUX CCLK
CCLK
AA22
CONFIG
N/A
GND
GND
L13
GND
VCCAUX DONE
DONE
AB21
CONFIG
N/A
GND
GND
L14
GND
VCCAUX HSWAP_EN
HSWAP_EN
B3
CONFIG
N/A
GND
GND
M9
GND
VCCAUX M0
M0
AB2
CONFIG
N/A
GND
GND
M10
GND
VCCAUX M1
M1
AA1
CONFIG
N/A
GND
GND
M11
GND
VCCAUX M2
M2
AB3
CONFIG
N/A
GND
GND
M12
GND
VCCAUX PROG_B
PROG_B
A2
CONFIG
N/A
GND
GND
M13
GND
VCCAUX TCK
TCK
A21
JTAG
N/A
GND
GND
M14
GND
VCCAUX TDI
TDI
B1
JTAG
N/A
GND
GND
N9
GND
VCCAUX TDO
TDO
B22
JTAG
N/A
GND
GND
N10
GND
VCCAUX TMS
TMS
A20
JTAG
N/A
GND
GND
N11
GND
N/A
GND
GND
N12
GND
N/A
GND
GND
N13
GND
N/A
GND
GND
N14
GND
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
User I/Os by Bank
Table 28 indicates how the available user-I/O pins are distributed between the eight I/O banks for the XC3S400 in the
FG456 package. Similarly, Table 29 shows how the avail-
able user-I/O pins are distributed between the eight I/O
banks for the XC3S1000 and XC3S1500 in the FG456
package.
Table 28: User I/Os Per Bank for XC3S400 in FG456 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
35
27
0
2
4
2
1
35
27
0
2
4
2
2
31
25
0
2
4
0
3
31
25
0
2
4
0
4
35
21
6
2
4
2
5
35
21
6
2
4
2
6
31
25
0
2
4
0
7
31
25
0
2
4
0
Table 29: User I/Os Per Bank for XC3S1000 and XC3S1500 in FG456 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
40
31
0
2
5
2
1
40
31
0
2
5
2
2
43
37
0
2
4
0
3
43
37
0
2
4
0
4
41
26
6
2
5
2
5
40
25
6
2
5
2
6
43
37
0
2
4
0
7
43
37
0
2
4
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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1-800-255-7778
55
R
Spartan-3 FPGA Family: Pinout Descriptions
FG456 Footprint
1
Left Half of Package
(top view)
XC3S400
(264 max. user I/O)
I/O: Unrestricted,
196
general-purpose user I/O
69
VREF: User I/O or input
voltage reference for bank
36
VREF: User I/O or input
voltage reference for bank
0
N.C.: No unconnected pins
in this package
F
40
8
GND
I/O
9
10
11
I/O
I/O
L32P_0
GCLK6
I/O
I/O
I/O
VRP_0
‹
GCLK7
I/O
I/O
IO
I/O
I/O
L01N_7 L01P_7
VREF_0 VCCO_0
VRP_7 VRN_7 L06P_0 L15N_0
GND
I/O
I/O
L31P_0
L29N_0 VREF_0
I/O
I/O
I/O
I/O
L31N_0
I/O
I/O
I/O
I/O
IO
I/O
I/O
I/O
VREF_0 VCCO_0 L25N_0 L28N_0 L30N_0
I/O
I/O
I/O
I/O
VCCINT VCCINT
G L27N_7
L27P_7 L26N_7 L26P_7
L24P_7 L22N_7
VREF_7
‹
‹
I/O
I/O
VCCO_7 L29P_7
GND
VCCO_0 VCCO_0 VCCO_0
I/O
VCCO_7 VCCINT
L24N_7
‹
I/O
I/O
I/O
L29N_7 L31N_7 L31P_7 VCCO_7
‹
‹
‹
GND
GND
GND
VCCO_7
GND
GND
GND
VCCO_7
GND
GND
GND
VCCO_6
GND
GND
GND
VCCO_6
GND
GND
GND
I/O
I/O
I/O
L31P_6 L31N_6 L28P_6 VCCO_6
‹
‹
‹
GND
GND
GND
I/O
I/O
‹
‹
I/O
I/O
I/O
I/O
L33N_7 L33P_7
K L35N_7
L35P_7 L34N_7 L34P_7
I/O
I/O
I/O
I/O
I/O
I/O
L L40N_7 L40P_7
L39N_7 L39P_7 L38N_7 L38P_7
VREF_7
I/O
I/O
I/O
I/O
I/O
I/O
M L40P_6 L40N_6
L39P_6 L39N_6 L38P_6 L38N_6
VREF_6
I/O
I/O
I/O
I/O
I/O
I/O
L34N_6 L33P_6 L33N_6
N L35P_6
L35N_6 L34P_6 VREF_6
‹
‹
I/O
I/O
P L32P_6 L32N_6
‹
‹
I/O
I/O
R L29P_6 L29N_6
‹
GND
I/O
I/O
VCCO_6 L26P_6 L28N_6 VCCO_6 VCCINT
‹
‹
‹
I/O
I/O
I/O
I/O
I/O
I/O
L26N_6
VCCINT VCCINT VCCO_5 VCCO_5 VCCO_5
T L27P_6
L27N_6
L23P_6 L22P_6 L22N_6
‹
I/O
IO
I/O
I/O
I/O
L24N_6
L24P_6 VREF_6 L23N_6 L19P_6 VREF_5
I/O
VCCO_5
I/O
I/O
I/O
I/O
I/O
I/O
V L21P_6
L21N_6 L20P_6 L20N_6 L19N_6 L15P_5
I/O
I/O
I/O
L24P_5 L27P_5
U
VCCAUX
I/O
I/O
52 GND: Ground
8
HSWAP_
I/O
I/O
I/O
I/O
I/O
L19N_0
L01N_0
L32N_0
EN
L24N_0 L27N_0 L29P_0
L09N_0 L15P_0
I/O
I/O
I/O
I/O
L23N_7 L23P_7 L20N_7 L22P_7
‹
‹
I/O
I/O
J L32N_7 L32P_7
‹
‹
JTAG: Dedicated JTAG
port pins
VCCAUX: Auxiliary voltage
supply (+2.5V)
VCCAUX
I/O
CONFIG: Dedicated
configuration pins
VCCO: Output voltage
supply for bank
Bank 0
7
I/O
I/O
IO
I/O
I/O
I/O
L19P_0
PROG_B
VREF_0 L01P_0 L09P_0 VCCAUX
L24P_0 L27P_0
VRN_0
‹
H L28N_7 L28P_7
GCLK: User I/O or global
clock buffer input
VCCINT: Internal core
12
voltage supply (+1.2V)
6
IO
Bank 6
4
5
I/O
I/O
I/O
I/O VREF_0
I/O
I/O
I/O
I/O
I/O
L22N_0
E L21N_7
L21P_7 L20P_7 L17N_7
L10N_0 L16N_0
L25P_0 L28P_0 L30P_0
‹
‹
DCI: User I/O or reference
16
resistor input for bank
7
TDI
4
I/O
All devices
DUAL: Configuration pin,
12
then possible user I/O
8
B
3
I/O
I/O
I/O
I/O
I/O
I/O
L22P_0
D L16N_7
L19N_7
L19P_7 VREF_7 L17P_7 L06N_0 L10P_0 L16P_0
‹
N.C.: Unconnected pins for
XC3S400 (‹)
XC3S1000, XC3S1500
(333 max user I/O)
I/O: Unrestricted,
261
general-purpose user I/O
GND
I/O
C L16P_7
VREF_7
Bank 7
32
A
2
I/O
‹
I/O
I/O
I/O
I/O
I/O
L31P_5
D5
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O L19P_5
L27N_5 L29P_5 L31N_5
W L17P_6 L17N_6
L16P_6 L16N_6 L09P_5 L15N_5 VREF_5 L24N_5 VREF_5 VREF_5
D4
VREF_6
‹
I/O
I/O
I/O
I/O
I/O
I/O
L19N_5 VCCO_5
L01P_6 L01N_6 L01N_5
L09N_5
L16P_5
VRN_6 VRP_6 RDWR_B
‹
Y
I/O
A
A
M1
GND
A
B
GND
M0
GND
I/O
I/O
L32P_5
L29N_5 GCLK2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L22P_5
L01P_5
L10P_5
L28P_5
L32N_5
L06P_5
L16N_5
L25P_5
L30P_5
CS_B
VRN_5
D7
GCLK3
‹
M2
I/O
I/O
I/O
IO
I/O
I/O
I/O
L28N_5
L10N_5 VCCAUX L22N_5
VREF_5
L25N_5
L06N_5 VRP_5
D6 L30N_5
‹
Bank 5
DS099-4_11a_030203
Figure 13: FG456 Package Footprint (top view)
56
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
12
I/O
13
Spartan-3 FPGA Family: Pinout Descriptions
14
Bank 1
15
16
17
18
19
I/O
I/O
I/O
I/O
I/O
I/O
L22N_1 VCCAUX L10N_1 L06N_1
L30N_1 L28N_1 L25P_1
VREF_1 VREF_1
‹
20
21
22
TMS
TCK
GND
A
GND
TDO
B
I/O
C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L22P_1
L32N_1
L01P_1
L16N_1 L10P_1 L06P_1 VRN_1
GCLK5 L30P_1 L28P_1 L25N_1
‹
I/O
I/O
L32P_1
GCLK4 L29N_1
I/O
GND
VCCO_1 L19N_1
‹
I/O
I/O
I/O
I/O
I/O
L01N_1 L01N_2 L01P_2
L16P_1 L09N_1 VRP_1 VRP_2 VRN_2
Right Half of Package
(top view)
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L19P_1
L31N_1
L17P_2 D
L15N_1 L09P_1 L16P_2 L16N_2 L17N_2 VREF_2
L29P_1
L27N_1
L24N_1
VREF_1
‹
I/O
IO
VREF_1 VCCO_1
‹
I/O
I/O
I/O
VCCO_1 VCCO_1 VCCO_1 VCCINT VCCINT
I/O
I/O
I/O
I/O
I/O
I/O
E
L15P_1 L19N_2 L20N_2 L20P_2 L21N_2 L21P_2
I/O
I/O
I/O
I/O
I/O
VCCAUX F
L23N_2
L19P_2 VREF_2 L24N_2 L24P_2
I/O
I/O
I/O
I/O
I/O
I/O
L26N_2
G
L27N_2 L27P_2
L22N_2 L22P_2 L23P_2
‹
Bank 2
IO
I/O
I/O
I/O
L31P_1 VREF_1 L27P_1 L24P_1
I/O
I/O
I/O
I/O
VCCINT VCCO_2 L28N_2 L26P_2 VCCO_2 L29N_2 L29P_2 H
‹
‹
‹
‹
GND
GND
VCCO_2 L28P_2
‹
I/O
I/O
L31N_2 L31P_2
‹
‹
GND
I/O
I/O
L32N_2 L32P_2 J
‹
‹
GND
GND
GND
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_2 L33N_2 L33P_2 L34N_2
K
L34P_2 L35N_2 L35P_2
VREF_2
‹
‹
GND
GND
GND
VCCO_2
I/O
I/O
I/O
I/O
I/O
I/O
L40P_2 L
L38N_2 L38P_2 L39N_2 L39P_2 L40N_2 VREF_2
GND
GND
GND
VCCO_3
I/O
I/O
I/O
I/O
I/O
I/O
L40N_3 M
L38P_3 L38N_3 L39P_3 L39N_3 L40P_3 VREF_3
GND
GND
GND
VCCO_3 L33P_3 L33N_3 L34P_3
GND
GND
GND
VCCO_3 L31P_3 L31N_3 L29N_3
I/O
‹
‹
I/O
I/O
‹
VCCINT VCCO_3
VCCO_4 VCCO_4 VCCO_4 VCCINT VCCINT
I/O
I/O
I/O
VCCO_4
I/O
L30N_4
L28N_4 L25N_4
D2
I/O
I/O
L22N_4
I/O
I/O
I/O
L30P_4
L28P_4 L25P_4 VREF_4 L16N_4
D3
‹
I/O
I/O
I/O
L22P_4
I/O
I/O
L31N_4
L16P_4
INIT_B
‹
I/O
IO
I/O
L31P_4
GND VCCO_4 VREF_4
DOUT L29N_4
BUSY
I/O
I/O
I/O
I/O
I/O
L27N_4
L19N_4
L32N_4
L29P_4
DI
N
L24N_4
GCLK1
‹
D0
I/O
‹
I/O
I/O
I/O
I/O
N
VREF_3 L34N_3 L35P_3 L35N_3
I/O
‹
GND
I/O
I/O
L32P_3 L32N_3 P
‹
‹
I/O
I/O
I/O
I/O
L29P_3 VCCO_3 L28P_3 L28N_3 R
L24N_3
‹
‹
‹
I/O
I/O
I/O
I/O
I/O
I/O
L26P_3 L26N_3
T
L27P_3 L27N_3
L22N_3 L24P_3
‹
‹
I/O
I/O
I/O
I/O
I/O
VCCAUX U
L23P_3
L22P_3 L20N_3 VREF_3 L23N_3
IO
I/O
I/O
I/O
I/O
I/O
V
L10N_4 VREF_4 L17N_3 L20P_3 L21P_3 L21N_3
I/O
I/O
I/O
I/O
I/O
I/O
W
L06N_4 L17P_3
L10P_4 VREF_4 VREF_3 L19P_3 L19N_3 L16N_3
I/O
I/O
I/O
I/O
L01P_3 L01N_3
L15N_4 L06P_4 VRN_3 VRP_3
I/O
I/O
I/O
I/O
I/O
L05N_4 L01N_4
L15P_4 L09N_4
VRP_4
‹
GND
I/O
I/O
I/O
I/O
I/O
IO
I/O
I/O
L05P_4 L01P_4 DONE
L19P_4 VCCAUX
L32P_4 VREF_4 L27P_4
L09P_4
L24P_4
VRN_4
GCLK0
D1
‹
‹
Bank 4
DS099-4 (v1.5) July 13, 2004
Product Specification
Bank 3
I/O
GND
I/O
Y
L16P_3
CCLK
A
A
GND
A
B
DS099-4_11b_030503
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1-800-255-7778
57
R
Spartan-3 FPGA Family: Pinout Descriptions
FG676: 676-lead Fine-pitch Ball Grid
Array
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
IO_L01P_0/
VRN_0
D5
DCI
IO_L05N_0
IO_L05N_0
B4
I/O
IO_L05P_0/
VREF_0
IO_L05P_0/
VREF_0
IO_L05P_0/
VREF_0
A4
VREF
0
IO_L06N_0
IO_L06N_0
IO_L06N_0
C5
I/O
0
IO_L06P_0
IO_L06P_0
IO_L06P_0
B5
I/O
0
IO_L07N_0
IO_L07N_0
IO_L07N_0
E6
I/O
0
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
0
IO_L01P_0/
VRN_0
IO_L01P_0/
VRN_0
0
IO_L05N_0
0
The 676-lead fine-pitch ball grid array package, FG676,
supports three different Spartan-3 devices, including the
XC3S1000, the XC3S1500, and the XC3S2000. All three
have nearly identical footprints but are slightly different due
to unconnected pins on the XC3S1000 and XC3S1500. For
example, because the XC3S1000 has fewer I/O pins, this
device has 98 unconnected pins on the FG676 package,
labeled as “N.C.” In Table 30 and Figure 14, these unconnected pins are indicated with a black diamond symbol (‹).
The XC3S1500, however, has only two unconnected pins,
also labeled “N.C.” in the pinout table but indicated with a
black square symbol („).
Bank
IO_L07P_0
IO_L07P_0
IO_L07P_0
D6
I/O
0
IO_L08N_0
IO_L08N_0
IO_L08N_0
C6
I/O
All the package pins appear in Table 30 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
0
IO_L08P_0
IO_L08P_0
IO_L08P_0
B6
I/O
0
IO_L09N_0
IO_L09N_0
IO_L09N_0
E7
I/O
0
IO_L09P_0
IO_L09P_0
IO_L09P_0
D7
I/O
0
IO_L10N_0
IO_L10N_0
IO_L10N_0
B7
I/O
0
IO_L10P_0
IO_L10P_0
IO_L10P_0
A7
I/O
0
N.C. (‹)
IO_L11N_0
IO_L11N_0
G8
I/O
0
N.C. (‹)
IO_L11P_0
IO_L11P_0
F8
I/O
0
N.C. (‹)
IO_L12N_0
IO_L12N_0
E8
I/O
0
N.C. (‹)
IO_L12P_0
IO_L12P_0
D8
I/O
0
IO_L15N_0
IO_L15N_0
IO_L15N_0
B8
I/O
0
IO_L15P_0
IO_L15P_0
IO_L15P_0
A8
I/O
0
IO_L16N_0
IO_L16N_0
IO_L16N_0
G9
I/O
0
IO_L16P_0
IO_L16P_0
IO_L16P_0
F9
I/O
0
N.C. (‹)
IO_L17N_0
IO_L17N_0
E9
I/O
0
N.C. (‹)
IO_L17P_0
IO_L17P_0
D9
I/O
0
N.C. (‹)
IO_L18N_0
IO_L18N_0
C9
I/O
0
N.C. (‹)
IO_L18P_0
IO_L18P_0
B9
I/O
0
IO_L19N_0
IO_L19N_0
IO_L19N_0
F10
I/O
0
IO_L19P_0
IO_L19P_0
IO_L19P_0
E10
I/O
0
IO_L22N_0
IO_L22N_0
IO_L22N_0
D10
I/O
0
IO_L22P_0
IO_L22P_0
IO_L22P_0
C10
I/O
0
N.C. (‹)
IO_L23N_0
IO_L23N_0
B10
I/O
0
N.C. (‹)
IO_L23P_0
IO_L23P_0
A10
I/O
0
IO_L24N_0
IO_L24N_0
IO_L24N_0
G11
I/O
0
IO_L24P_0
IO_L24P_0
IO_L24P_0
F11
I/O
0
IO_L25N_0
IO_L25N_0
IO_L25N_0
E11
I/O
0
IO_L25P_0
IO_L25P_0
IO_L25P_0
D11
I/O
0
N.C. (‹)
IO_L26N_0
IO_L26N_0
B11
I/O
0
N.C. (‹)
IO_L26P_0/
VREF_0
IO_L26P_0/
VREF_0
A11
VREF
If there is a difference between the XC1000, XC3S1500 and
XC3S2000 pinouts, then that difference is highlighted in
Table 30. If the table entry is shaded grey, then there is an
unconnected pin on either the XC3S1000 or XC3S1500 that
maps to a user-I/O pin on the XC3S2000. If the table entry
is shaded tan, then the unconnected pin on either the
XC3S1000 or XC3S1500 maps to a VREF-type pin on the
XC3S2000. If the other VREF pins in the bank all connect to
a voltage reference to support a special I/O standard, then
also connect the N.C. pin on the XC3S1000 or XC3S1500
to the same VREF voltage. This provides maximum flexibility as you could potentially migrate a design from the
XC3S1000 through to the XC3S2000 FPGA without changing the printed circuit board.
Pinout Table
Table 30: FG676 Package Pinout
Bank
0
0
0
0
0
58
XC3S1000
Pin Name
IO
IO
IO
IO
N.C. (‹)
XC3S1500
Pin Name
IO
IO
IO
IO
IO
XC3S2000
Pin Name
IO
IO
IO
IO
IO
FG676
Pin
Number
Type
A3
I/O
A5
A6
C4
C8
I/O
I/O
I/O
I/O
0
IO
IO
IO
C12
I/O
0
IO
IO
IO
E13
I/O
0
IO
IO
IO
H11
I/O
0
IO_L27N_0
IO_L27N_0
IO_L27N_0
G12
I/O
0
IO
IO
IO
H12
I/O
0
IO_L27P_0
IO_L27P_0
IO_L27P_0
H13
I/O
0
IO/VREF_0
IO/VREF_0
IO/VREF_0
B3
VREF
0
IO_L28N_0
IO_L28N_0
IO_L28N_0
F12
I/O
0
IO/VREF_0
IO/VREF_0
IO/VREF_0
F7
VREF
0
IO_L28P_0
IO_L28P_0
IO_L28P_0
E12
I/O
0
IO/VREF_0
IO/VREF_0
IO/VREF_0
G10
VREF
0
IO_L29N_0
IO_L29N_0
IO_L29N_0
B12
I/O
0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
E5
DCI
0
IO_L29P_0
IO_L29P_0
IO_L29P_0
A12
I/O
www.xilinx.com
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
Bank
G13
I/O
1
IO_L10P_1
IO_L10P_1
IO_L30P_0
F13
I/O
1
N.C. (‹)
IO_L31N_0
D13
I/O
1
N.C. (‹)
IO_L31P_0/
VREF_0
IO_L31P_0/
VREF_0
C13
VREF
1
1
IO_L32N_0/
GCLK7
IO_L32N_0/
GCLK7
B13
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
0
IO_L30N_0
IO_L30N_0
IO_L30N_0
0
IO_L30P_0
IO_L30P_0
0
IO_L31N_0
IO_L31N_0
0
IO_L31P_0/
VREF_0
IO_L32N_0/
GCLK7
Bank
0
0
Table 30: FG676 Package Pinout (Continued)
GCLK
FG676
Pin
Number
Type
IO_L10P_1
B20
I/O
IO_L11N_1
IO_L11N_1
E19
I/O
IO_L11P_1
IO_L11P_1
F19
I/O
N.C. (‹)
IO_L12N_1
IO_L12N_1
C19
I/O
N.C. (‹)
IO_L12P_1
IO_L12P_1
D19
I/O
1
IO_L15N_1
IO_L15N_1
IO_L15N_1
A19
I/O
1
IO_L15P_1
IO_L15P_1
IO_L15P_1
B19
I/O
1
IO_L16N_1
IO_L16N_1
IO_L16N_1
F18
I/O
G18
I/O
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
A13
0
VCCO_0
VCCO_0
VCCO_0
C7
VCCO
1
IO_L16P_1
IO_L16P_1
IO_L16P_1
0
VCCO_0
VCCO_0
VCCO_0
C11
VCCO
1
N.C. (‹)
IO_L18N_1
IO_L18N_1
B18
I/O
0
VCCO_0
VCCO_0
VCCO_0
H9
VCCO
1
N.C. (‹)
IO_L18P_1
IO_L18P_1
C18
I/O
0
VCCO_0
VCCO_0
VCCO_0
H10
VCCO
1
IO_L19N_1
IO_L19N_1
IO_L19N_1
F17
I/O
0
VCCO_0
VCCO_0
VCCO_0
J11
VCCO
1
IO_L19P_1
IO_L19P_1
IO_L19P_1
G17
I/O
0
VCCO_0
VCCO_0
VCCO_0
J12
VCCO
1
IO_L22N_1
IO_L22N_1
IO_L22N_1
D17
I/O
0
VCCO_0
VCCO_0
VCCO_0
J13
VCCO
1
IO_L22P_1
IO_L22P_1
IO_L22P_1
E17
I/O
0
VCCO_0
VCCO_0
VCCO_0
K13
VCCO
1
N.C. (‹)
IO_L23N_1
IO_L23N_1
A17
I/O
1
IO
IO
IO
A14
I/O
1
N.C. (‹)
IO_L23P_1
IO_L23P_1
B17
I/O
1
IO
IO
IO
A22
I/O
1
IO_L24N_1
IO_L24N_1
IO_L24N_1
G16
I/O
1
IO
IO
IO
A23
I/O
1
IO_L24P_1
IO_L24P_1
IO_L24P_1
H16
I/O
1
IO
IO
IO
D16
I/O
1
IO_L25N_1
IO_L25N_1
IO_L25N_1
E16
I/O
1
IO
IO
IO
E18
I/O
1
IO_L25P_1
IO_L25P_1
IO_L25P_1
F16
I/O
1
IO
IO
IO
F14
I/O
1
N.C. (‹)
IO_L26N_1
IO_L26N_1
A16
I/O
1
IO
IO
IO
F20
I/O
1
N.C. (‹)
IO_L26P_1
IO_L26P_1
B16
I/O
1
IO
IO
IO
G19
I/O
1
IO_L27N_1
IO_L27N_1
IO_L27N_1
G15
I/O
1
IO/VREF_1
IO/VREF_1
IO/VREF_1
C15
VREF
1
IO_L27P_1
IO_L27P_1
IO_L27P_1
H15
I/O
1
IO/VREF_1
IO/VREF_1
IO/VREF_1
C17
VREF
1
IO_L28N_1
IO_L28N_1
IO_L28N_1
E15
I/O
1
N.C. (‹)
IO/VREF_1
IO/VREF_1
D18
VREF
1
IO_L28P_1
IO_L28P_1
IO_L28P_1
F15
I/O
1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
D22
DCI
1
IO_L29N_1
IO_L29N_1
IO_L29N_1
A15
I/O
1
IO_L29P_1
IO_L29P_1
IO_L29P_1
B15
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
E22
I/O
1
IO_L30N_1
IO_L30N_1
IO_L30N_1
G14
I/O
I/O
1
IO_L30P_1
IO_L30P_1
IO_L30P_1
H14
I/O
1
IO_L31N_1/
VREF_1
IO_L31N_1/
VREF_1
IO_L31N_1/
VREF_1
D14
VREF
1
IO_L31P_1
IO_L31P_1
IO_L31P_1
E14
I/O
1
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
B14
GCLK
1
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
C14
GCLK
1
1
IO_L04N_1
IO_L04N_1
IO_L04N_1
B23
GCLK
DCI
1
IO_L04P_1
IO_L04P_1
IO_L04P_1
C23
I/O
1
IO_L05N_1
IO_L05N_1
IO_L05N_1
E21
I/O
1
IO_L05P_1
IO_L05P_1
IO_L05P_1
F21
I/O
1
IO_L06N_1/
VREF_1
IO_L06N_1/
VREF_1
IO_L06N_1/
VREF_1
B22
VREF
1
IO_L06P_1
IO_L06P_1
IO_L06P_1
C22
I/O
1
IO_L07N_1
IO_L07N_1
IO_L07N_1
C21
I/O
1
VCCO_1
VCCO_1
VCCO_1
C16
VCCO
1
IO_L07P_1
IO_L07P_1
IO_L07P_1
D21
I/O
1
VCCO_1
VCCO_1
VCCO_1
C20
VCCO
1
IO_L08N_1
IO_L08N_1
IO_L08N_1
A21
I/O
1
VCCO_1
VCCO_1
VCCO_1
H17
VCCO
1
IO_L08P_1
IO_L08P_1
IO_L08P_1
B21
I/O
1
VCCO_1
VCCO_1
VCCO_1
H18
VCCO
1
IO_L09N_1
IO_L09N_1
IO_L09N_1
D20
I/O
1
VCCO_1
VCCO_1
VCCO_1
J14
VCCO
1
IO_L09P_1
IO_L09P_1
IO_L09P_1
E20
I/O
1
VCCO_1
VCCO_1
VCCO_1
J15
VCCO
1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
A20
VREF
1
VCCO_1
VCCO_1
VCCO_1
J16
VCCO
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
59
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
Bank
XC3S1500
Pin Name
XC3S2000
Pin Name
FG676
Pin
Number
Type
Bank
K14
VCCO
2
IO_L27P_2
IO_L27P_2
XC3S1000
Pin Name
XC3S1500
Pin Name
FG676
Pin
Number
Type
IO_L27P_2
L20
I/O
XC3S2000
Pin Name
1
VCCO_1
VCCO_1
VCCO_1
2
N.C. (‹)
N.C. („)
IO
F22
I/O
2
IO_L28N_2
IO_L28N_2
IO_L28N_2
L21
I/O
2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
C25
DCI
2
IO_L28P_2
IO_L28P_2
IO_L28P_2
L22
I/O
2
IO_L29N_2
IO_L29N_2
IO_L29N_2
L25
I/O
2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
C26
DCI
2
IO_L29P_2
IO_L29P_2
IO_L29P_2
L26
I/O
2
IO_L31N_2
IO_L31N_2
IO_L31N_2
M19
I/O
2
IO_L31P_2
IO_L31P_2
IO_L31P_2
M20
I/O
2
IO_L32N_2
IO_L32N_2
IO_L32N_2
M21
I/O
2
IO_L32P_2
IO_L32P_2
IO_L32P_2
M22
I/O
I/O
2
2
2
IO_L02N_2
IO_L02P_2
IO_L02N_2
IO_L02P_2
IO_L02N_2
IO_L02P_2
E23
E24
I/O
I/O
IO_L03N_2/
VREF_2
IO_L03N_2/
VREF_2
IO_L03N_2/
VREF_2
D25
2
IO_L03P_2
IO_L03P_2
IO_L03P_2
D26
I/O
2
IO_L33N_2
IO_L33N_2
IO_L33N_2
L23
2
N.C. (‹)
IO_L05N_2
IO_L05N_2
E25
I/O
2
IO_L33P_2
IO_L33P_2
IO_L33P_2
M24
I/O
2
N.C. (‹)
IO_L05P_2
IO_L05P_2
E26
I/O
2
IO_L06N_2
IO_L06N_2
G20
I/O
IO_L34N_2/
VREF_2
VREF
N.C. (‹)
IO_L34N_2/
VREF_2
M25
2
IO_L34N_2/
VREF_2
2
N.C. (‹)
IO_L06P_2
IO_L06P_2
G21
I/O
2
IO_L34P_2
IO_L34P_2
IO_L34P_2
M26
I/O
2
IO_L35N_2
IO_L35N_2
IO_L35N_2
N19
I/O
2
IO_L35P_2
IO_L35P_2
IO_L35P_2
N20
I/O
2
IO_L38N_2
IO_L38N_2
IO_L38N_2
N21
I/O
2
IO_L38P_2
IO_L38P_2
IO_L38P_2
N22
I/O
2
IO_L39N_2
IO_L39N_2
IO_L39N_2
N23
I/O
VREF
2
N.C. (‹)
IO_L07N_2
IO_L07N_2
F23
I/O
2
N.C. (‹)
IO_L07P_2
IO_L07P_2
F24
I/O
2
N.C. (‹)
IO_L08N_2
IO_L08N_2
G22
I/O
2
N.C. (‹)
IO_L08P_2
IO_L08P_2
G23
I/O
2
N.C. (‹)
IO_L09N_2/
VREF_2
IO_L09N_2/
VREF_2
F25
VREF
2
IO_L39P_2
IO_L39P_2
IO_L39P_2
N24
I/O
2
N.C. (‹)
IO_L09P_2
IO_L09P_2
F26
I/O
2
IO_L40N_2
IO_L40N_2
IO_L40N_2
N25
I/O
2
N.C. (‹)
IO_L10N_2
IO_L10N_2
G25
I/O
2
IO_L10P_2
IO_L10P_2
G26
I/O
IO_L40P_2/
VREF_2
IO_L40P_2/
VREF_2
VREF
N.C. (‹)
IO_L40P_2/
VREF_2
N26
2
2
IO_L14N_2
IO_L14N_2
IO_L14N_2
H20
I/O
2
VCCO_2
VCCO_2
VCCO_2
G24
VCCO
2
VCCO_2
VCCO_2
VCCO_2
J19
VCCO
2
VCCO_2
VCCO_2
VCCO_2
K19
VCCO
2
VCCO_2
VCCO_2
VCCO_2
L18
VCCO
2
VCCO_2
VCCO_2
VCCO_2
L24
VCCO
2
VCCO_2
VCCO_2
VCCO_2
M18
VCCO
2
VCCO_2
VCCO_2
VCCO_2
N17
VCCO
N18
VCCO
2
IO_L14P_2
IO_L14P_2
IO_L14P_2
H21
I/O
2
IO_L16N_2
IO_L16N_2
IO_L16N_2
H22
I/O
2
IO_L16P_2
IO_L16P_2
IO_L16P_2
J21
I/O
2
2
60
XC3S1000
Pin Name
Table 30: FG676 Package Pinout (Continued)
IO_L17N_2
IO_L17N_2
IO_L17N_2
H23
I/O
IO_L17P_2/
VREF_2
IO_L17P_2/
VREF_2
IO_L17P_2/
VREF_2
H24
2
IO_L19N_2
IO_L19N_2
IO_L19N_2
H25
I/O
2
VCCO_2
VCCO_2
VCCO_2
2
IO_L19P_2
IO_L19P_2
IO_L19P_2
H26
I/O
3
IO_L20N_2
IO_L20N_2
J20
I/O
IO_L01N_3/
VRP_3
DCI
IO_L20N_2
IO_L01N_3/
VRP_3
AA22
2
IO_L01N_3/
VRP_3
2
IO_L20P_2
IO_L20P_2
IO_L20P_2
K20
I/O
3
IO_L01P_3/
VRN_3
IO_L01P_3/
VRN_3
IO_L01P_3/
VRN_3
AA21
DCI
2
IO_L21N_2
IO_L21N_2
IO_L21N_2
J22
I/O
3
IO_L21P_2
IO_L21P_2
J23
I/O
IO_L02N_3/
VREF_3
IO_L02N_3/
VREF_3
VREF
IO_L21P_2
IO_L02N_3/
VREF_3
AB24
2
2
IO_L22N_2
IO_L22N_2
IO_L22N_2
J24
I/O
3
IO_L02P_3
IO_L02P_3
IO_L02P_3
AB23
I/O
2
IO_L22P_2
IO_L22P_2
IO_L22P_2
J25
I/O
3
IO_L03N_3
IO_L03N_3
IO_L03N_3
AC26
I/O
2
IO_L23N_2/
VREF_2
IO_L23N_2/
VREF_2
IO_L23N_2/
VREF_2
K21
VREF
3
IO_L03P_3
IO_L03P_3
IO_L03P_3
AC25
I/O
3
N.C. (‹)
IO_L05N_3
IO_L05N_3
Y21
I/O
2
IO_L23P_2
IO_L23P_2
IO_L23P_2
K22
I/O
3
N.C. (‹)
IO_L05P_3
IO_L05P_3
Y20
I/O
2
IO_L24N_2
IO_L24N_2
IO_L24N_2
K23
I/O
3
N.C. (‹)
IO_L06N_3
IO_L06N_3
AB26
I/O
2
IO_L24P_2
IO_L24P_2
IO_L24P_2
K24
I/O
3
N.C. (‹)
IO_L06P_3
IO_L06P_3
AB25
I/O
2
IO_L26N_2
IO_L26N_2
IO_L26N_2
K25
I/O
3
N.C. (‹)
IO_L07N_3
IO_L07N_3
AA24
I/O
2
IO_L26P_2
IO_L26P_2
IO_L26P_2
K26
I/O
3
N.C. (‹)
IO_L07P_3
IO_L07P_3
AA23
I/O
2
IO_L27N_2
IO_L27N_2
IO_L27N_2
L19
I/O
3
N.C. (‹)
IO_L08N_3
IO_L08N_3
Y23
I/O
VREF
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
Bank
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
Bank
I/O
3
IO_L38P_3
IO_L38P_3
XC3S1000
Pin Name
XC3S1500
Pin Name
FG676
Pin
Number
Type
IO_L38P_3
P21
I/O
XC3S2000
Pin Name
3
N.C. (‹)
IO_L08P_3
IO_L08P_3
Y22
3
N.C. (‹)
IO_L09N_3
IO_L09N_3
AA26
I/O
3
IO_L39N_3
IO_L39N_3
IO_L39N_3
P24
I/O
3
N.C. (‹)
IO_L09P_3/
VREF_3
IO_L09P_3/
VREF_3
AA25
VREF
3
IO_L39P_3
IO_L39P_3
IO_L39P_3
P23
I/O
3
IO_L10N_3
IO_L10N_3
W21
I/O
IO_L40N_3/
VREF_3
IO_L40N_3/
VREF_3
VREF
N.C. (‹)
IO_L40N_3/
VREF_3
P26
3
3
N.C. (‹)
IO_L10P_3
IO_L10P_3
W20
I/O
3
IO_L40P_3
IO_L40P_3
IO_L40P_3
P25
I/O
3
IO_L14N_3
IO_L14N_3
IO_L14N_3
Y26
I/O
3
VCCO_3
VCCO_3
VCCO_3
P17
VCCO
3
IO_L14P_3
IO_L14P_3
IO_L14P_3
Y25
I/O
3
VCCO_3
VCCO_3
VCCO_3
P18
VCCO
3
IO_L16N_3
IO_L16N_3
IO_L16N_3
V21
I/O
3
VCCO_3
VCCO_3
VCCO_3
R18
VCCO
3
IO_L16P_3
IO_L16P_3
IO_L16P_3
W22
I/O
3
VCCO_3
VCCO_3
VCCO_3
T18
VCCO
3
IO_L17N_3
IO_L17N_3
IO_L17N_3
W24
I/O
3
VCCO_3
VCCO_3
VCCO_3
T24
VCCO
3
IO_L17P_3/
VREF_3
IO_L17P_3/
VREF_3
IO_L17P_3/
VREF_3
W23
VREF
3
VCCO_3
VCCO_3
VCCO_3
U19
VCCO
3
VCCO_3
VCCO_3
VCCO_3
V19
VCCO
3
IO_L19N_3
IO_L19N_3
IO_L19N_3
W26
I/O
3
VCCO_3
VCCO_3
VCCO_3
Y24
VCCO
3
IO_L19P_3
IO_L19P_3
IO_L19P_3
W25
I/O
4
IO
IO
IO
AA20
I/O
3
IO_L20N_3
IO_L20N_3
IO_L20N_3
U20
I/O
4
IO
IO
IO
AD15
I/O
3
IO_L20P_3
IO_L20P_3
IO_L20P_3
V20
I/O
4
N.C. (‹)
IO
IO
AD19
I/O
3
IO_L21N_3
IO_L21N_3
IO_L21N_3
V23
I/O
4
IO
IO
IO
AD23
I/O
3
IO_L21P_3
IO_L21P_3
IO_L21P_3
V22
I/O
4
IO
IO
IO
AF21
I/O
3
IO_L22N_3
IO_L22N_3
IO_L22N_3
V25
I/O
4
IO
IO
IO
AF22
I/O
3
IO_L22P_3
IO_L22P_3
IO_L22P_3
V24
I/O
4
IO
IO
IO
W15
I/O
3
IO_L23N_3
IO_L23N_3
IO_L23N_3
U22
I/O
4
IO
IO
IO
W16
I/O
3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
U21
VREF
4
IO/VREF_4
IO/VREF_4
IO/VREF_4
AB14
VREF
3
IO_L24N_3
IO_L24N_3
IO_L24N_3
U24
I/O
4
IO/VREF_4
IO/VREF_4
IO/VREF_4
AD25
VREF
4
IO/VREF_4
IO/VREF_4
IO/VREF_4
Y17
VREF
4
IO_L01N_4/
VRP_4
IO_L01N_4/
VRP_4
IO_L01N_4/
VRP_4
AB22
DCI
4
IO_L01P_4/
VRN_4
IO_L01P_4/
VRN_4
IO_L01P_4/
VRN_4
AC22
DCI
AE24
I/O
3
IO_L24P_3
IO_L24P_3
IO_L24P_3
U23
I/O
3
IO_L26N_3
IO_L26N_3
IO_L26N_3
U26
I/O
3
IO_L26P_3
IO_L26P_3
IO_L26P_3
U25
I/O
3
IO_L27N_3
IO_L27N_3
IO_L27N_3
T20
I/O
3
IO_L27P_3
IO_L27P_3
IO_L27P_3
T19
I/O
4
IO_L04N_4
IO_L04N_4
IO_L04N_4
3
IO_L28N_3
IO_L28N_3
IO_L28N_3
T22
I/O
4
IO_L04P_4
IO_L04P_4
IO_L04P_4
AF24
I/O
3
IO_L28P_3
IO_L28P_3
IO_L28P_3
T21
I/O
4
IO_L05N_4
IO_L05N_4
IO_L05N_4
AE23
I/O
3
IO_L29N_3
IO_L29N_3
IO_L29N_3
T26
I/O
4
IO_L05P_4
IO_L05P_4
IO_L05P_4
AF23
I/O
3
IO_L29P_3
IO_L29P_3
IO_L29P_3
T25
I/O
4
IO_L31N_3
IO_L31N_3
R20
I/O
IO_L06N_4/
VREF_4
VREF
IO_L31N_3
IO_L06N_4/
VREF_4
AD22
3
IO_L06N_4/
VREF_4
3
IO_L31P_3
IO_L31P_3
IO_L31P_3
R19
I/O
4
IO_L06P_4
IO_L06P_4
IO_L06P_4
AE22
I/O
4
IO_L07N_4
IO_L07N_4
IO_L07N_4
AB21
I/O
4
IO_L07P_4
IO_L07P_4
IO_L07P_4
AC21
I/O
4
IO_L08N_4
IO_L08N_4
IO_L08N_4
AD21
I/O
4
IO_L08P_4
IO_L08P_4
IO_L08P_4
AE21
I/O
4
IO_L09N_4
IO_L09N_4
IO_L09N_4
AB20
I/O
4
IO_L09P_4
IO_L09P_4
IO_L09P_4
AC20
I/O
4
IO_L10N_4
IO_L10N_4
IO_L10N_4
AE20
I/O
3
IO_L32N_3
IO_L32N_3
IO_L32N_3
R22
I/O
3
IO_L32P_3
IO_L32P_3
IO_L32P_3
R21
I/O
3
3
3
3
IO_L33N_3
IO_L33P_3
IO_L34N_3
IO_L33N_3
IO_L33P_3
IO_L34N_3
IO_L33N_3
IO_L33P_3
IO_L34N_3
R24
T23
R26
I/O
I/O
I/O
IO_L34P_3/
VREF_3
IO_L34P_3/
VREF_3
IO_L34P_3/
VREF_3
R25
3
IO_L35N_3
IO_L35N_3
IO_L35N_3
P20
I/O
4
IO_L10P_4
IO_L10P_4
IO_L10P_4
AF20
I/O
3
IO_L35P_3
IO_L35P_3
IO_L35P_3
P19
I/O
4
N.C. (‹)
IO_L11N_4
IO_L11N_4
Y19
I/O
3
IO_L38N_3
IO_L38N_3
IO_L38N_3
P22
I/O
4
N.C. (‹)
IO_L11P_4
IO_L11P_4
AA19
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
VREF
www.xilinx.com
1-800-255-7778
61
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
XC3S1500
Pin Name
XC3S2000
Pin Name
FG676
Pin
Number
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
FG676
Pin
Number
Type
V15
VCCO
Type
Bank
4
N.C. (‹)
IO_L12N_4
IO_L12N_4
AB19
I/O
4
VCCO_4
VCCO_4
VCCO_4
4
N.C. (‹)
IO_L12P_4
IO_L12P_4
AC19
I/O
4
VCCO_4
VCCO_4
VCCO_4
V16
VCCO
4
IO_L15N_4
IO_L15N_4
IO_L15N_4
AE19
I/O
4
VCCO_4
VCCO_4
VCCO_4
W17
VCCO
4
IO_L15P_4
IO_L15P_4
IO_L15P_4
AF19
I/O
4
VCCO_4
VCCO_4
VCCO_4
W18
VCCO
4
IO_L16N_4
IO_L16N_4
IO_L16N_4
Y18
I/O
5
IO
IO
IO
AA7
I/O
4
IO_L16P_4
IO_L16P_4
IO_L16P_4
AA18
I/O
5
IO
IO
IO
AA13
I/O
4
N.C. (‹)
IO_L17N_4
IO_L17N_4
AB18
I/O
5
IO
IO
IO
AB9
I/O
4
N.C. (‹)
IO_L17P_4
IO_L17P_4
AC18
I/O
5
N.C. (‹)
IO
IO
AC9
I/O
4
N.C. (‹)
IO_L18N_4
IO_L18N_4
AD18
I/O
5
IO
IO
IO
AC11
I/O
4
N.C. (‹)
IO_L18P_4
IO_L18P_4
AE18
I/O
5
IO
IO
IO
AD10
I/O
4
IO_L19N_4
IO_L19N_4
IO_L19N_4
AC17
I/O
5
IO
IO
IO
AD12
I/O
4
IO_L19P_4
IO_L19P_4
IO_L19P_4
AA17
I/O
5
IO
IO
IO
AF4
I/O
4
IO_L22N_4/
VREF_4
IO_L22N_4/
VREF_4
IO_L22N_4/
VREF_4
AD17
VREF
5
IO
IO
IO
Y8
I/O
5
IO/VREF_5
IO/VREF_5
IO/VREF_5
AF5
VREF
4
IO_L22P_4
IO_L22P_4
IO_L22P_4
AB17
I/O
5
IO/VREF_5
IO/VREF_5
IO/VREF_5
AF13
VREF
4
N.C. (‹)
IO_L23N_4
IO_L23N_4
AE17
I/O
5
IO_L23P_4
IO_L23P_4
AF17
I/O
IO_L01N_5/
RDWR_B
IO_L01N_5/
RDWR_B
DUAL
N.C. (‹)
IO_L01N_5/
RDWR_B
AC5
4
4
IO_L24N_4
IO_L24N_4
IO_L24N_4
Y16
I/O
5
IO_L24P_4
IO_L24P_4
AA16
I/O
IO_L01P_5/
CS_B
IO_L01P_5/
CS_B
DUAL
IO_L24P_4
IO_L01P_5/
CS_B
AB5
4
4
IO_L25N_4
IO_L25N_4
IO_L25N_4
AB16
I/O
5
IO_L04N_5
IO_L04N_5
IO_L04N_5
AE4
I/O
4
IO_L25P_4
IO_L25P_4
IO_L25P_4
AC16
I/O
5
IO_L04P_5
IO_L04P_5
IO_L04P_5
AD4
I/O
5
IO_L05N_5
IO_L05N_5
IO_L05N_5
AB6
I/O
5
IO_L05P_5
IO_L05P_5
IO_L05P_5
AA6
I/O
5
IO_L06N_5
IO_L06N_5
IO_L06N_5
AE5
I/O
5
IO_L06P_5
IO_L06P_5
IO_L06P_5
AD5
I/O
5
IO_L07N_5
IO_L07N_5
IO_L07N_5
AD6
I/O
5
IO_L07P_5
IO_L07P_5
IO_L07P_5
AC6
I/O
5
IO_L08N_5
IO_L08N_5
IO_L08N_5
AF6
I/O
5
IO_L08P_5
IO_L08P_5
IO_L08P_5
AE6
I/O
5
IO_L09N_5
IO_L09N_5
IO_L09N_5
AC7
I/O
5
IO_L09P_5
IO_L09P_5
IO_L09P_5
AB7
I/O
5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
AF7
DCI
5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
AE7
DCI
5
N.C. (‹)
IO_L11N_5/
VREF_5
IO_L11N_5/
VREF_5
AB8
VREF
5
N.C. (‹)
IO_L11P_5
IO_L11P_5
AA8
I/O
5
N.C. (‹)
IO_L12N_5
IO_L12N_5
AD8
I/O
5
N.C. (‹)
IO_L12P_5
IO_L12P_5
AC8
I/O
5
IO_L15N_5
IO_L15N_5
IO_L15N_5
AF8
I/O
5
IO_L15P_5
IO_L15P_5
IO_L15P_5
AE8
I/O
IO_L16N_5
IO_L16N_5
IO_L16N_5
AA9
I/O
Bank
4
4
4
4
4
4
4
4
N.C. (‹)
N.C. (‹)
IO_L26N_4
IO_L26N_4
AE16
IO_L26P_4/
VREF_4
IO_L26P_4/
VREF_4
AF16
IO_L27N_4/
DIN/D0
IO_L27N_4/
DIN/D0
IO_L27N_4/
DIN/D0
Y15
IO_L27P_4/
D1
IO_L27P_4/
D1
IO_L27P_4/
D1
W14
IO_L28N_4
IO_L28P_4
IO_L29N_4
IO_L29P_4
IO_L28N_4
IO_L28P_4
IO_L29N_4
IO_L29P_4
IO_L28N_4
IO_L28P_4
IO_L29N_4
IO_L29P_4
AA15
AB15
AE15
AF15
I/O
VREF
DUAL
DUAL
I/O
I/O
I/O
I/O
4
IO_L30N_4/
D2
IO_L30N_4/
D2
IO_L30N_4/
D2
Y14
DUAL
4
IO_L30P_4/
D3
IO_L30P_4/
D3
IO_L30P_4/
D3
AA14
DUAL
4
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
AC14
DUAL
4
IO_L31P_4/ IO_L31P_4/ IO_L31P_4/
DOUT/BUSY DOUT/BUSY DOUT/BUSY
AD14
DUAL
IO_L32N_4/
GCLK1
IO_L32N_4/
GCLK1
IO_L32N_4/
GCLK1
AE14
IO_L32P_4/
GCLK0
IO_L32P_4/
GCLK0
IO_L32P_4/
GCLK0
AF14
4
4
62
XC3S1000
Pin Name
Table 30: FG676 Package Pinout (Continued)
GCLK
GCLK
4
VCCO_4
VCCO_4
VCCO_4
AD16
VCCO
5
4
VCCO_4
VCCO_4
VCCO_4
AD20
VCCO
5
IO_L16P_5
IO_L16P_5
IO_L16P_5
Y9
I/O
N.C. (‹)
IO_L18N_5
IO_L18N_5
AE9
I/O
4
VCCO_4
VCCO_4
VCCO_4
U14
VCCO
5
4
VCCO_4
VCCO_4
VCCO_4
V14
VCCO
5
N.C. (‹)
IO_L18P_5
IO_L18P_5
AD9
I/O
5
IO_L19N_5
IO_L19N_5
IO_L19N_5
AA10
I/O
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
Bank
IO_L19P_5/
VREF_5
Y10
VREF
6
IO_L03P_6
IO_L03P_6
6
N.C. (‹)
IO_L22N_5
IO_L22N_5
AC10
I/O
6
N.C. (‹)
IO_L22P_5
IO_L22P_5
IO_L22P_5
AB10
I/O
6
5
N.C. (‹)
IO_L23N_5
IO_L23N_5
AF10
I/O
6
5
N.C. (‹)
IO_L23P_5
IO_L23P_5
AE10
I/O
5
IO_L24N_5
IO_L24N_5
IO_L24N_5
Y11
I/O
5
IO_L24P_5
IO_L24P_5
IO_L24P_5
W11
I/O
5
IO_L25N_5
IO_L25N_5
IO_L25N_5
AB11
I/O
5
IO_L25P_5
IO_L25P_5
IO_L25P_5
AA11
I/O
5
N.C. (‹)
IO_L26N_5
IO_L26N_5
AF11
I/O
5
N.C. (‹)
IO_L26P_5
IO_L26P_5
AE11
5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
Y12
5
IO_L27P_5
IO_L27P_5
IO_L27P_5
W12
I/O
5
IO_L28N_5/
D6
IO_L28N_5/
D6
IO_L28N_5/
D6
AB12
DUAL
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
5
IO_L19P_5/
VREF_5
IO_L19P_5/
VREF_5
5
IO_L22N_5
5
Bank
FG676
Pin
Number
Type
IO_L03P_6
AC1
I/O
IO_L05N_6
IO_L05N_6
AB2
I/O
IO_L05P_6
IO_L05P_6
AB1
I/O
N.C. (‹)
IO_L06N_6
IO_L06N_6
Y7
I/O
N.C. (‹)
IO_L06P_6
IO_L06P_6
Y6
I/O
6
N.C. (‹)
IO_L07N_6
IO_L07N_6
AA4
I/O
6
N.C. (‹)
IO_L07P_6
IO_L07P_6
AA3
I/O
6
N.C. (‹)
IO_L08N_6
IO_L08N_6
Y5
I/O
6
N.C. (‹)
IO_L08P_6
IO_L08P_6
Y4
I/O
6
N.C. (‹)
IO_L09N_6/
VREF_6
IO_L09N_6/
VREF_6
AA2
VREF
I/O
6
N.C. (‹)
IO_L09P_6
IO_L09P_6
AA1
I/O
VREF
6
N.C. (‹)
IO_L10N_6
IO_L10N_6
Y2
I/O
6
N.C. (‹)
IO_L10P_6
IO_L10P_6
Y1
I/O
6
IO_L14N_6
IO_L14N_6
IO_L14N_6
W7
I/O
6
IO_L14P_6
IO_L14P_6
IO_L14P_6
W6
I/O
6
IO_L16N_6
IO_L16N_6
IO_L16N_6
V6
I/O
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
5
IO_L28P_5/
D7
IO_L28P_5/
D7
IO_L28P_5/
D7
AA12
DUAL
6
IO_L16P_6
IO_L16P_6
IO_L16P_6
W5
I/O
5
IO_L29N_5
IO_L29N_5
IO_L29N_5
AF12
I/O
6
IO_L17N_6
IO_L17N_6
IO_L17N_6
W4
I/O
5
IO_L29P_5/
VREF_5
IO_L29P_5/
VREF_5
IO_L29P_5/
VREF_5
AE12
VREF
6
IO_L17P_6/
VREF_6
IO_L17P_6/
VREF_6
IO_L17P_6/
VREF_6
W3
VREF
5
IO_L30N_5
IO_L30N_5
IO_L30N_5
Y13
I/O
6
IO_L19N_6
IO_L19N_6
IO_L19N_6
W2
I/O
5
IO_L30P_5
IO_L30P_5
IO_L30P_5
W13
I/O
6
IO_L19P_6
IO_L19P_6
IO_L19P_6
W1
I/O
5
IO_L31N_5/
D4
IO_L31N_5/
D4
IO_L31N_5/
D4
AC13
DUAL
6
IO_L20N_6
IO_L20N_6
IO_L20N_6
V7
I/O
6
IO_L20P_6
IO_L20P_6
IO_L20P_6
U7
5
IO_L31P_5/
D5
IO_L31P_5/
D5
IO_L31P_5/
D5
AB13
I/O
DUAL
6
IO_L21N_6
IO_L21N_6
IO_L21N_6
V5
I/O
5
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
AE13
GCLK
6
IO_L21P_6
IO_L21P_6
IO_L21P_6
V4
I/O
6
IO_L22N_6
IO_L22N_6
IO_L22N_6
V3
I/O
IO_L32P_5/
GCLK2
IO_L32P_5/
GCLK2
IO_L32P_5/
GCLK2
AD13
6
IO_L22P_6
IO_L22P_6
IO_L22P_6
V2
I/O
5
VCCO_5
VCCO_5
VCCO_5
AD7
6
IO_L23N_6
IO_L23N_6
IO_L23N_6
U6
VCCO
I/O
5
VCCO_5
VCCO_5
VCCO_5
AD11
6
IO_L23P_6
IO_L23P_6
IO_L23P_6
U5
VCCO
I/O
6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
U4
VREF
5
GCLK
5
VCCO_5
VCCO_5
VCCO_5
U13
VCCO
5
VCCO_5
VCCO_5
VCCO_5
V11
VCCO
6
IO_L24P_6
IO_L24P_6
IO_L24P_6
U3
I/O
5
VCCO_5
VCCO_5
VCCO_5
V12
VCCO
6
IO_L26N_6
IO_L26N_6
IO_L26N_6
U2
I/O
5
VCCO_5
VCCO_5
VCCO_5
V13
VCCO
6
IO_L26P_6
IO_L26P_6
IO_L26P_6
U1
I/O
5
VCCO_5
VCCO_5
VCCO_5
W9
VCCO
6
IO_L27N_6
IO_L27N_6
IO_L27N_6
T8
I/O
5
VCCO_5
VCCO_5
VCCO_5
W10
VCCO
6
IO_L27P_6
IO_L27P_6
IO_L27P_6
T7
I/O
6
N.C. (‹)
N.C. („)
IO
AA5
I/O
6
IO_L28N_6
IO_L28N_6
IO_L28N_6
T6
I/O
6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
AD2
DCI
6
IO_L28P_6
IO_L28P_6
IO_L28P_6
T5
I/O
6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
AD1
6
IO_L29N_6
IO_L29N_6
IO_L29N_6
T2
DCI
I/O
6
IO_L29P_6
IO_L29P_6
IO_L29P_6
T1
I/O
IO_L02N_6
IO_L02N_6
IO_L02N_6
AB4
I/O
6
IO_L31N_6
IO_L31N_6
IO_L31N_6
R8
I/O
IO_L31P_6
IO_L31P_6
IO_L31P_6
R7
I/O
6
6
IO_L02P_6
IO_L02P_6
IO_L02P_6
AB3
I/O
6
6
IO_L03N_6/
VREF_6
IO_L03N_6/
VREF_6
IO_L03N_6/
VREF_6
AC2
VREF
6
IO_L32N_6
IO_L32N_6
IO_L32N_6
R6
I/O
6
IO_L32P_6
IO_L32P_6
IO_L32P_6
R5
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
63
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
Bank
IO_L33N_6
T4
I/O
IO_L33P_6
IO_L33P_6
R3
I/O
IO_L34N_6/
VREF_6
IO_L34N_6/
VREF_6
R2
VREF
IO_L34P_6
IO_L34P_6
IO_L34P_6
R1
I/O
6
IO_L35N_6
IO_L35N_6
IO_L35N_6
P8
I/O
6
IO_L35P_6
IO_L35P_6
IO_L35P_6
P7
I/O
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
6
IO_L33N_6
IO_L33N_6
6
IO_L33P_6
6
IO_L34N_6/
VREF_6
6
Bank
6
IO_L38N_6
IO_L38N_6
IO_L38N_6
P6
I/O
6
IO_L38P_6
IO_L38P_6
IO_L38P_6
P5
I/O
6
6
6
6
IO_L39N_6
IO_L39P_6
IO_L40N_6
IO_L39N_6
IO_L39P_6
IO_L40N_6
IO_L39N_6
IO_L39P_6
IO_L40N_6
P4
P3
P2
P1
I/O
I/O
I/O
FG676
Pin
Number
Type
IO_L16P_7/
VREF_7
H5
VREF
IO_L17N_7
IO_L17N_7
H3
I/O
IO_L17P_7
IO_L17P_7
IO_L17P_7
H4
I/O
IO_L19N_7/
VREF_7
IO_L19N_7/
VREF_7
IO_L19N_7/
VREF_7
H1
VREF
7
IO_L19P_7
IO_L19P_7
IO_L19P_7
H2
I/O
7
IO_L20N_7
IO_L20N_7
IO_L20N_7
K7
I/O
7
IO_L20P_7
IO_L20P_7
IO_L20P_7
J7
I/O
7
IO_L21N_7
IO_L21N_7
IO_L21N_7
J4
I/O
7
IO_L21P_7
IO_L21P_7
IO_L21P_7
J5
I/O
7
IO_L22N_7
IO_L22N_7
IO_L22N_7
J2
I/O
7
IO_L22P_7
IO_L22P_7
IO_L22P_7
J3
I/O
7
IO_L23N_7
IO_L23N_7
IO_L23N_7
K5
I/O
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
7
IO_L16P_7/
VREF_7
IO_L16P_7/
VREF_7
7
IO_L17N_7
7
7
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
6
VCCO_6
VCCO_6
VCCO_6
P9
VCCO
7
IO_L23P_7
IO_L23P_7
IO_L23P_7
K6
I/O
6
VCCO_6
VCCO_6
VCCO_6
P10
VCCO
7
IO_L24N_7
IO_L24N_7
IO_L24N_7
K3
I/O
6
VCCO_6
VCCO_6
VCCO_6
R9
VCCO
7
IO_L24P_7
IO_L24P_7
IO_L24P_7
K4
I/O
6
VCCO_6
VCCO_6
VCCO_6
T3
VCCO
7
IO_L26N_7
IO_L26N_7
IO_L26N_7
K1
I/O
6
VCCO_6
VCCO_6
VCCO_6
T9
VCCO
7
IO_L26P_7
IO_L26P_7
IO_L26P_7
K2
I/O
6
VCCO_6
VCCO_6
VCCO_6
U8
VCCO
7
IO_L27N_7
IO_L27N_7
IO_L27N_7
L7
I/O
6
VCCO_6
VCCO_6
VCCO_6
V8
VCCO
7
VCCO_6
VCCO_6
Y3
VCCO
IO_L27P_7/
VREF_7
IO_L27P_7/
VREF_7
VREF
VCCO_6
IO_L27P_7/
VREF_7
L8
6
7
IO_L01N_7/
VRP_7
IO_L01N_7/
VRP_7
IO_L01N_7/
VRP_7
F5
DCI
7
IO_L28N_7
IO_L28N_7
IO_L28N_7
L5
I/O
7
IO_L28P_7
IO_L28P_7
IO_L28P_7
L6
I/O
IO_L01P_7/
VRN_7
IO_L01P_7/
VRN_7
IO_L01P_7/
VRN_7
F6
7
IO_L29N_7
IO_L29N_7
IO_L29N_7
L1
I/O
7
IO_L29P_7
IO_L29P_7
IO_L29P_7
L2
I/O
7
IO_L02N_7
IO_L02N_7
IO_L02N_7
E3
I/O
7
IO_L31N_7
IO_L31N_7
IO_L31N_7
M7
I/O
7
IO_L02P_7
IO_L02P_7
IO_L02P_7
E4
I/O
7
IO_L31P_7
IO_L31P_7
IO_L31P_7
M8
I/O
7
IO_L03N_7/
VREF_7
IO_L03N_7/
VREF_7
IO_L03N_7/
VREF_7
D1
VREF
7
IO_L32N_7
IO_L32N_7
IO_L32N_7
M6
I/O
7
IO_L32P_7
IO_L32P_7
IO_L32P_7
M5
I/O
7
IO_L33N_7
IO_L33N_7
IO_L33N_7
M3
I/O
7
IO_L33P_7
IO_L33P_7
IO_L33P_7
L4
I/O
7
IO_L34N_7
IO_L34N_7
IO_L34N_7
M1
I/O
7
IO_L34P_7
IO_L34P_7
IO_L34P_7
M2
I/O
7
IO_L35N_7
IO_L35N_7
IO_L35N_7
N7
I/O
7
IO_L35P_7
IO_L35P_7
IO_L35P_7
N8
I/O
7
IO_L38N_7
IO_L38N_7
IO_L38N_7
N5
I/O
7
IO_L38P_7
IO_L38P_7
IO_L38P_7
N6
I/O
7
IO_L39N_7
IO_L39N_7
IO_L39N_7
N3
I/O
7
IO_L39P_7
IO_L39P_7
IO_L39P_7
N4
I/O
7
IO_L40N_7/
VREF_7
IO_L40N_7/
VREF_7
IO_L40N_7/
VREF_7
N1
VREF
7
IO_L40P_7
IO_L40P_7
IO_L40P_7
N2
I/O
7
VCCO_7
VCCO_7
VCCO_7
G3
VCCO
7
VCCO_7
VCCO_7
VCCO_7
J8
VCCO
7
VCCO_7
VCCO_7
VCCO_7
K8
VCCO
7
64
Table 30: FG676 Package Pinout (Continued)
VREF
DCI
7
IO_L03P_7
IO_L03P_7
IO_L03P_7
D2
I/O
7
N.C. (‹)
IO_L05N_7
IO_L05N_7
G6
I/O
7
N.C. (‹)
IO_L05P_7
IO_L05P_7
G7
I/O
7
N.C. (‹)
IO_L06N_7
IO_L06N_7
E1
I/O
7
N.C. (‹)
IO_L06P_7
IO_L06P_7
E2
I/O
7
N.C. (‹)
IO_L07N_7
IO_L07N_7
F3
I/O
7
N.C. (‹)
IO_L07P_7
IO_L07P_7
F4
I/O
7
N.C. (‹)
IO_L08N_7
IO_L08N_7
G4
I/O
7
N.C. (‹)
IO_L08P_7
IO_L08P_7
G5
I/O
7
N.C. (‹)
IO_L09N_7
IO_L09N_7
F1
I/O
7
N.C. (‹)
IO_L09P_7
IO_L09P_7
F2
I/O
7
N.C. (‹)
IO_L10N_7
IO_L10N_7
H6
I/O
7
N.C. (‹)
IO_L10P_7/
VREF_7
IO_L10P_7/
VREF_7
H7
VREF
7
IO_L14N_7
IO_L14N_7
IO_L14N_7
G1
I/O
7
IO_L14P_7
IO_L14P_7
IO_L14P_7
G2
I/O
7
IO_L16N_7
IO_L16N_7
IO_L16N_7
J6
I/O
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
Bank
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
Bank
L3
VCCO
N/A
GND
GND
XC3S1000
Pin Name
XC3S1500
Pin Name
FG676
Pin
Number
Type
GND
M17
GND
XC3S2000
Pin Name
7
VCCO_7
VCCO_7
VCCO_7
7
VCCO_7
VCCO_7
VCCO_7
L9
VCCO
N/A
GND
GND
GND
M23
GND
7
VCCO_7
VCCO_7
VCCO_7
M9
VCCO
N/A
GND
GND
GND
N11
GND
7
VCCO_7
VCCO_7
VCCO_7
N9
VCCO
N/A
GND
GND
GND
N12
GND
7
VCCO_7
VCCO_7
VCCO_7
N10
VCCO
N/A
GND
GND
GND
N13
GND
N/A
GND
GND
GND
A1
GND
N/A
GND
GND
GND
N14
GND
N/A
GND
GND
GND
A26
GND
N/A
GND
GND
GND
N15
GND
N/A
GND
GND
GND
AC4
GND
N/A
GND
GND
GND
N16
GND
N/A
GND
GND
GND
AC12
GND
N/A
GND
GND
GND
P11
GND
N/A
GND
GND
GND
AC15
GND
N/A
GND
GND
GND
P12
GND
N/A
GND
GND
GND
AC23
GND
N/A
GND
GND
GND
P13
GND
N/A
GND
GND
GND
AD3
GND
N/A
GND
GND
GND
P14
GND
N/A
GND
GND
GND
AD24
GND
N/A
GND
GND
GND
P15
GND
N/A
GND
GND
GND
AE2
GND
N/A
GND
GND
GND
P16
GND
N/A
GND
GND
GND
AE25
GND
N/A
GND
GND
GND
R4
GND
N/A
GND
GND
GND
AF1
GND
N/A
GND
GND
GND
R10
GND
N/A
GND
GND
GND
AF26
GND
N/A
GND
GND
GND
R11
GND
N/A
GND
GND
GND
B2
GND
N/A
GND
GND
GND
R12
GND
N/A
GND
GND
GND
B25
GND
N/A
GND
GND
GND
R13
GND
N/A
GND
GND
GND
C3
GND
N/A
GND
GND
GND
R14
GND
N/A
GND
GND
GND
C24
GND
N/A
GND
GND
GND
R15
GND
N/A
GND
GND
GND
D4
GND
N/A
GND
GND
GND
R16
GND
N/A
GND
GND
GND
D12
GND
N/A
GND
GND
GND
R17
GND
N/A
GND
GND
GND
D15
GND
N/A
GND
GND
GND
R23
GND
N/A
GND
GND
GND
D23
GND
N/A
GND
GND
GND
T10
GND
N/A
GND
GND
GND
K11
GND
N/A
GND
GND
GND
T11
GND
N/A
GND
GND
GND
K12
GND
N/A
GND
GND
GND
T12
GND
N/A
GND
GND
GND
K15
GND
N/A
GND
GND
GND
T13
GND
N/A
GND
GND
GND
K16
GND
N/A
GND
GND
GND
T14
GND
N/A
GND
GND
GND
L10
GND
N/A
GND
GND
GND
T15
GND
N/A
GND
GND
GND
L11
GND
N/A
GND
GND
GND
T16
GND
N/A
GND
GND
GND
L12
GND
N/A
GND
GND
GND
T17
GND
N/A
GND
GND
GND
L13
GND
N/A
GND
GND
GND
U11
GND
N/A
GND
GND
GND
L14
GND
N/A
GND
GND
GND
U12
GND
N/A
GND
GND
GND
L15
GND
N/A
GND
GND
GND
U15
GND
N/A
GND
GND
GND
L16
GND
N/A
GND
GND
GND
U16
GND
N/A
GND
GND
GND
L17
GND
N/A
VCCAUX
VCCAUX
VCCAUX
A2
VCCAUX
N/A
GND
GND
GND
M4
GND
N/A
VCCAUX
VCCAUX
VCCAUX
A9
VCCAUX
N/A
GND
GND
GND
M10
GND
N/A
VCCAUX
VCCAUX
VCCAUX
A18
VCCAUX
N/A
GND
GND
GND
M11
GND
N/A
VCCAUX
VCCAUX
VCCAUX
A25
VCCAUX
N/A
GND
GND
GND
M12
GND
N/A
VCCAUX
VCCAUX
VCCAUX
AE1
VCCAUX
N/A
GND
GND
GND
M13
GND
N/A
VCCAUX
VCCAUX
VCCAUX
AE26
VCCAUX
N/A
GND
GND
GND
M14
GND
N/A
VCCAUX
VCCAUX
VCCAUX
AF2
VCCAUX
N/A
GND
GND
GND
M15
GND
N/A
VCCAUX
VCCAUX
VCCAUX
AF9
VCCAUX
N/A
GND
GND
GND
M16
GND
N/A
VCCAUX
VCCAUX
VCCAUX
AF18
VCCAUX
DS099-4 (v1.5) July 13, 2004
Product Specification
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65
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 30: FG676 Package Pinout (Continued)
Bank
XC3S1000
Pin Name
XC3S1500
Pin Name
XC3S2000
Pin Name
Table 30: FG676 Package Pinout (Continued)
FG676
Pin
Number
Type
AF25
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
B1
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
B26
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
J1
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
J26
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
V1
VCCAUX
N/A
VCCAUX
VCCAUX
VCCAUX
V26
VCCAUX
N/A
VCCINT
VCCINT
VCCINT
H8
VCCINT
N/A
VCCINT
VCCINT
VCCINT
H19
VCCINT
N/A
VCCINT
VCCINT
VCCINT
J9
VCCINT
N/A
VCCINT
VCCINT
VCCINT
J10
VCCINT
N/A
VCCINT
VCCINT
VCCINT
J17
VCCINT
N/A
VCCINT
VCCINT
VCCINT
J18
VCCINT
N/A
VCCINT
VCCINT
VCCINT
K9
VCCINT
N/A
VCCINT
VCCINT
VCCINT
K10
VCCINT
N/A
VCCINT
VCCINT
VCCINT
K17
VCCINT
N/A
VCCINT
VCCINT
VCCINT
K18
VCCINT
N/A
VCCINT
VCCINT
VCCINT
U9
VCCINT
N/A
VCCINT
VCCINT
VCCINT
U10
VCCINT
N/A
VCCINT
VCCINT
VCCINT
U17
VCCINT
N/A
VCCINT
VCCINT
VCCINT
U18
VCCINT
N/A
VCCINT
VCCINT
VCCINT
V9
VCCINT
N/A
VCCINT
VCCINT
VCCINT
V10
VCCINT
N/A
VCCINT
VCCINT
VCCINT
V17
VCCINT
N/A
VCCINT
VCCINT
VCCINT
V18
VCCINT
N/A
VCCINT
VCCINT
VCCINT
W8
VCCINT
N/A
VCCINT
VCCINT
VCCINT
W19
VCCINT
CCLK
CCLK
AD26
CONFIG
VCC CCLK
AUX
XC3S1000
Pin Name
Bank
XC3S1500
Pin Name
XC3S2000
Pin Name
FG676
Pin
Number
Type
AC24
CONFIG
C2
CONFIG
VCC DONE
AUX
DONE
DONE
VCC HSWAP_EN
AUX
HSWAP_EN
HSWAP_EN
VCC M0
AUX
M0
M0
AE3
CONFIG
VCC M1
AUX
M1
M1
AC3
CONFIG
VCC M2
AUX
M2
M2
AF3
CONFIG
VCC PROG_B
AUX
PROG_B
PROG_B
D3
CONFIG
VCC TCK
AUX
TCK
TCK
B24
JTAG
VCC TDI
AUX
TDI
TDI
C1
JTAG
VCC TDO
AUX
TDO
TDO
D24
JTAG
VCC TMS
AUX
TMS
TMS
A24
JTAG
User I/Os by Bank
Table 31 indicates how the available user-I/O pins are distributed between the eight I/O banks for the XC3S1000 in
the FG676 package. Similarly, Table 32 shows how the
available user-I/O pins are distributed between the eight I/O
banks for the XC3S1500 in the FG676 package. Finally,
Table 33 shows the same information for the XC3S2000 in
the FG676 package.
Table 31: User I/Os Per Bank for XC3S1000 in FG676 Package
Edge
Top
Right
Bottom
Left
66
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
49
40
0
2
5
2
1
50
41
0
2
5
2
2
48
41
0
2
5
0
3
48
41
0
2
5
0
4
50
35
6
2
5
2
5
50
35
6
2
5
2
6
48
41
0
2
5
0
7
48
41
0
2
5
0
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 32: User I/Os Per Bank for XC3S1500 in FG676 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
62
52
0
2
6
2
1
61
51
0
2
6
2
2
60
52
0
2
6
0
3
60
52
0
2
6
0
4
63
47
6
2
6
2
5
61
45
6
2
6
2
6
60
52
0
2
6
0
7
60
52
0
2
6
0
Table 33: User I/Os Per Bank for XC3S2000 in FG676 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
62
52
0
2
6
2
1
61
51
0
2
6
2
2
61
53
0
2
6
0
3
60
52
0
2
6
0
4
63
47
6
2
6
2
5
61
45
6
2
6
2
6
61
53
0
2
6
0
7
60
52
0
2
6
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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1-800-255-7778
67
R
Spartan-3 FPGA Family: Pinout Descriptions
FG676 Footprint
1
Left Half of Package
(top view)
XC3S1000
(391 max. user I/O)
I/O: Unrestricted,
315 general-purpose user I/O
VREF: User I/O or input
40 voltage reference for bank
2
N.C.: Unconnected pins for
XC3S1500 („)
XC3S2000
(489 max user I/O)
I/O: Unrestricted,
405 general-purpose user I/O
VREF: User I/O or input
48 voltage reference for bank
0
N.C.: No unconnected pins
All devices
DUAL: Configuration pin,
12 then possible user I/O
GCLK: User I/O or global
clock buffer input
DCI: User I/O or reference
16 resistor input for bank
7
4
CONFIG: Dedicated
configuration pins
JTAG: Dedicated JTAG
port pins
VCCINT: Internal core
20 voltage supply (+1.2V)
VCCO: Output voltage
64 supply for bank
VCCAUX: Auxiliary voltage
16 supply (+2.5V)
76
GND: Ground
Bank 6
8
6
7
Bank 0
8
I/O
I/O
I/O
L10P_0
I/O
L15P_0
I/O
L15N_0
5
GND
VCCAUX
I/O
B
VCCAUX
GND
I/O
VREF_0
I/O
L05N_0
I/O
L06P_0
I/O
L08P_0
I/O
L10N_0
C
TD I
HSWAP_
EN
GND
I/O
I/O
L06N_0
I/O
L08N_0
VCCO_0
D
I/O
L03N_7
VREF_7
I/O
L03P_7
PROG_B
GND
I/O
L01P_0
VRN_0
I/O
L07P_0
I/O
L09P_0
I/O
L06N_7
I/O
L06P_7
‹
‹
I/O
L01N_0
VRP_0
I/O
L07N_0
I/O
L09N_0
I/O
L09N_7
I/O
L01P_7
VRN_7
I/O
VREF_0
I/O
L05P_7
9
10
I/O
VCCAUX L23P_0
‹
11
12
13
I/O
L26P_0
VREF_0
‹
I/O
L29P_0
I/O
L32P_0
GCLK6
I/O
L29N_0
I/O
L32N_0
GCLK7
I/O
L18P_0
I/O
L23N_0
I/O
L26N_0
‹
‹
‹
‹
I/O
L18N_0
‹
I/O
L22P_0
VCCO_0
I/O
I/O
L31P_0
VREF_0
I/O
L12P_0
I/O
L17P_0
I/O
L22N_0
I/O
L25P_0
GND
I/O
L31N_0
I/O
L19P_0
I/O
L25N_0
I/O
L28P_0
I/O
I/O
L16P_0
I/O
L19N_0
I/O
L24P_0
I/O
L28N_0
I/O
L30P_0
I/O
L16N_0
I/O
VREF_0
I/O
L24N_0
I/O
L27N_0
I/O
L30N_0
I/O
I/O
I/O
L27P_0
I/O
‹
I/O
L12N_0
‹
I/O
L17N_0
I/O
L02N_7
I/O
L02P_7
I/O
L09P_7
I/O
L07N_7
I/O
L07P_7
‹
‹
‹
‹
I/O
L01N_7
VRP_7
I/O
L14N_7
I/O
L14P_7
VCCO_7
I/O
L08N_7
I/O
L08P_7
I/O
L05N_7
‹
‹
‹
I/O
L19N_7
VREF_7
I/O
L19P_7
I/O
L17N_7
I/O
L17P_7
I/O
L16P_7
VREF_7
I/O
L10N_7
J
VCCAUX
I/O
L22N_7
I/O
L22P_7
I/O
L21N_7
I/O
L21P_7
I/O
L16N_7
I/O
L20P_7
VCCO_7 VCCINT
VCCINT
K
I/O
L26N_7
I/O
L26P_7
I/O
L24N_7
I/O
L24P_7
I/O
L23N_7
I/O
L23P_7
I/O
L20N_7
VCCO_7 VCCINT
VCCINT
GND
GND
VCCO_0
L
I/O
L29N_7
I/O
L29P_7
VCCO_7
I/O
L33P_7
I/O
L28N_7
I/O
L28P_7
I/O
L27N_7
I/O
L27P_7
VREF_7
VCCO_7
GND
GND
GND
GND
M
I/O
L34N_7
I/O
L34P_7
I/O
L33N_7
GND
I/O
L32P_7
I/O
L32N_7
I/O
L31N_7
I/O
L31P_7
VCCO_7
GND
GND
GND
GND
N
I/O
L40N_7
VREF_7
I/O
L40P_7
I/O
L39N_7
I/O
L39P_7
I/O
L38N_7
I/O
L38P_7
I/O
L35N_7
I/O
L35P_7
VCCO_7 VCCO_7
GND
GND
GND
P
I/O
L40P_6
VREF_6
I/O
L40N_6
I/O
L39P_6
I/O
L39N_6
I/O
L38P_6
I/O
L38N_6
I/O
L35P_6
I/O
L35N_6
VCCO_6 VCCO_6
GND
GND
GND
R
I/O
L34P_6
I/O
L34N_6
VREF_6
I/O
L33P_6
GND
I/O
L32P_6
I/O
L32N_6
I/O
L31P_6
I/O
L31N_6
VCCO_6
GND
GND
GND
GND
T
I/O
L29P_6
I/O
L29N_6
VCCO_6
I/O
L33N_6
I/O
L28P_6
I/O
L28N_6
I/O
L27P_6
I/O
L27N_6
VCCO_6
GND
GND
GND
GND
U
I/O
L26P_6
I/O
L26N_6
I/O
L24P_6
I/O
L24N_6
VREF_6
I/O
L23P_6
I/O
L23N_6
I/O
L20P_6
VCCO_6 VCCINT
VCCINT
GND
GND
VCCO_5
V
VCCAUX
I/O
L22P_6
I/O
L22N_6
I/O
L21P_6
I/O
L21N_6
I/O
L16N_6
I/O
L20N_6
VCCO_6 VCCINT
VCCINT
W
I/O
L19P_6
I/O
L19N_6
I/O
L17P_6
VREF_6
I/O
L17N_6
I/O
L16P_6
I/O
L14P_6
I/O
VCCINT
L14N_6
Y
I/O
L10P_6
I/O
L10N_6
I/O
L08P_6
I/O
L08N_6
I/O
L06P_6
I/O
L06N_6
‹
‹
I/O
L09N_6
VREF_6
‹
I/O
L05N_6
‹
‹
‹
‹
I/O
L05P_5
G
Bank 7
VREF: User I/O or input
48 voltage reference for bank
4
A
F
XC3S1500
(487 max user I/O)
I/O: Unrestricted,
403 general-purpose user I/O
3
I/O
L05P_0
VREF_0
E
N.C.: Unconnected pins for
98 XC3S1000 (‹)
2
H
A
A
A
B
I/O
L09P_6
‹
I/O
L07P_6
I/O
L07N_6
I/O
‹
‹
‹„
I/O
L11P_0
‹
I/O
L11N_0
‹
‹
I/O
L10P_7
VREF_7 VCCINT
‹
‹
VCCO_0 VCCO_0
I/O
L27P_5
I/O
L30P_5
I/O
I/O
L16P_5
I/O
L19P_5
VREF_5
I/O
L24N_5
I/O
L27N_5
VREF_5
I/O
L30N_5
I/O
I/O
L11P_5
‹
I/O
L16N_5
I/O
L19N_5
I/O
L25P_5
I/O
L28P_5
D7
I/O
I/O
I/O
L22P_5
I/O
L25N_5
I/O
L28N_5
D6
I/O
L31P_5
D5
‹
I/O
L22N_5
I/O
GND
I/O
L31N_5
D4
I/O
L12N_5
I/O
L18P_5
I/O
VCCO_5
I/O
‹
‹
I/O
L32P_5
GCLK2
I/O
L23P_5
I/O
L26P_5
I/O
L29P_5
VREF_5
I/O
L32N_5
GCLK3
I/O
L29N_5
I/O
VREF_5
I/O
L02N_6
I/O
L01P_5
CS_B
I/O
L05N_5
I/O
L09P_5
I/O
L03N_6
VREF_6
M1
GND
I/O
L01N_5
RDWR_B
I/O
L07P_5
I/O
L09N_5
I/O
L12P_5
‹
I/O
L01P_6
VRN_6
I/O
L01N_6
VRP_6
GND
I/O
L04P_5
I/O
L06P_5
I/O
L07N_5
VCCO_5
VCCAUX
GND
M0
I/O
L04N_5
I/O
L06N_5
I/O
L08P_5
I/O
L10P_5
VRN_5
I/O
L15P_5
I/O
I/O
VREF_5
I/O
L08N_5
I/O
L10N_5
VRP_5
I/O
VCCAUX
L15N_5
‹
A
C
I/O
L03P_6
A
D
A
E
GND
VCCAUX
M2
VCCO_5 VCCO_5 VCCO_5
I/O
L24P_5
I/O
L02P_6
I/O
L05P_6
VCCO_0 VCCO_0 VCCO_0
VCCO_5 VCCO_5
I/O
L11N_5
VREF_5
‹
‹
A
F
VCCO_6
‹
‹
I/O
I/O
L18N_5
‹
Bank 5
‹
‹
I/O
L23N_5
I/O
L26N_5
‹
‹
DS099-4_12a_030203
Figure 14: FG676 Package Footprint (top view)
68
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
I/O
L29N_1
16
I/O
L26N_1
‹
17
Bank 1
18
19
20
21
22
23
I/O
L15N_1
I/O
L10N_1
VREF_1
I/O
L08N_1
I/O
I/O
I/O
L15P_1
I/O
L10P_1
I/O
L08P_1
I/O
L06N_1
VREF_1
I/O
L18P_1
I/O
L12N_1
VCCO_1
‹
‹
I/O
L07N_1
I/O
VREF_1
I/O
L12P_1
‹
‹
I/O
L09N_1
I/O
I/O
L11N_1
‹
I/O
L09P_1
I/O
L23N_1 VCCAUX
‹
I/O
L26P_1
I/O
L23P_1
I/O
L18N_1
‹
‹
‹
I/O
VREF_1
VCCO_1
I/O
VREF_1
I/O
L31N_1
VREF_1
GND
I/O
I/O
L31P_1
I/O
L28N_1
I/O
L32N_1
GCLK5
I/O
L29P_1
I/O
L32P_1
GCLK4
I/O
L25N_1
I/O
L22N_1
I/O
L22P_1
25
26
TMS
VCCAUX
GND
A
I/O
L04N_1
TCK
GND
VCCAUX
B
I/O
L06P_1
I/O
L04P_1
GND
I/O
L01N_2
VRP_2
I/O
L01P_2
VRN_2
C
I/O
L07P_1
I/O
L01N_1
VRP_1
GND
TDO
I/O
L03N_2
VREF_2
I/O
L03P_2
D
I/O
L05N_1
I/O
L01P_1
VRN_1
I/O
L02N_2
I/O
L02P_2
I/O
L05N_2
I/O
L05P_2
E
‹
‹
I/O
L09N_2
VREF_2
‹
I/O
L09P_2
I/O
I/O
L07N_2
I/O
L07P_2
‹„
‹
‹
I/O
L06P_2
‹
I/O
L08N_2
‹
I/O
L08P_2
‹
VCCO_2
I/O
L10N_2
‹
I/O
L10P_2
‹
G
I/O
L14N_2
I/O
L14P_2
I/O
L16N_2
I/O
L17N_2
I/O
L17P_2
VREF_2
I/O
L19N_2
I/O
L19P_2
H
I/O
L28P_1
I/O
L25P_1
I/O
L19N_1
I/O
L16N_1
I/O
L11P_1
‹
I/O
I/O
L30N_1
I/O
L27N_1
I/O
L24N_1
I/O
L19P_1
I/O
L16P_1
I/O
I/O
L06N_2
‹
I/O
L30P_1
I/O
L27P_1
I/O
L24P_1
VCCO_1 VCCO_1 VCCINT
I/O
24
I/O
L05P_1
‹
F
VCCO_1 VCCO_1 VCCO_1 VCCINT
VCCINT
VCCO_2
I/O
L20N_2
I/O
L16P_2
I/O
L21N_2
I/O
L21P_2
I/O
L22N_2
I/O
L22P_2
VCCAUX
J
VCCO_1
GND
GND
VCCINT
VCCINT
VCCO_2
I/O
L20P_2
I/O
L23N_2
VREF_2
I/O
L23P_2
I/O
L24N_2
I/O
L24P_2
I/O
L26N_2
I/O
L26P_2
K
GND
GND
GND
GND
VCCO_2
I/O
L27N_2
I/O
L27P_2
I/O
L28N_2
I/O
L28P_2
I/O
L33N_2
VCCO_2
I/O
L29N_2
I/O
L29P_2
L
GND
GND
GND
GND
VCCO_2
I/O
L31N_2
I/O
L31P_2
I/O
L32N_2
I/O
L32P_2
GND
I/O
L33P_2
I/O
L34N_2
VREF_2
I/O
L34P_2
M
GND
GND
GND
VCCO_2 VCCO_2
I/O
L35N_2
I/O
L35P_2
I/O
L38N_2
I/O
L38P_2
I/O
L39N_2
I/O
L39P_2
I/O
L40N_2
I/O
L40P_2
VREF_2
N
GND
GND
GND
VCCO_3 VCCO_3
I/O
L35P_3
I/O
L35N_3
I/O
L38P_3
I/O
L38N_3
I/O
L39P_3
I/O
L39N_3
I/O
L40P_3
I/O
L40N_3
VREF_3
P
GND
GND
GND
GND
VCCO_3
I/O
L31P_3
I/O
L31N_3
I/O
L32P_3
I/O
L32N_3
GND
I/O
L33N_3
I/O
L34P_3
VREF_3
I/O
L34N_3
R
GND
GND
GND
GND
VCCO_3
I/O
L27P_3
I/O
L27N_3
I/O
L28P_3
I/O
L28N_3
I/O
L33P_3
VCCO_3
I/O
L29P_3
I/O
L29N_3
T
VCCO_4
GND
GND
VCCINT
VCCINT
VCCO_3
I/O
L20N_3
I/O
L23P_3
VREF_3
I/O
L23N_3
I/O
L24P_3
I/O
L24N_3
I/O
L26P_3
I/O
L26N_3
U
VCCO_4 VCCO_4 VCCO_4 VCCINT
VCCINT
VCCO_3
I/O
L20P_3
I/O
L16N_3
I/O
L21P_3
I/O
L21N_3
I/O
L22P_3
I/O
L22N_3
VCCAUX
V
I/O
L10P_3
I/O
L10N_3
‹
I/O
L16P_3
I/O
L17P_3
VREF_3
I/O
L17N_3
I/O
L19P_3
I/O
L19N_3
W
‹
I/O
L11N_4
I/O
L05P_3
I/O
L05N_3
I/O
L08P_3
I/O
L08N_3
VCCO_3
‹
‹
‹
‹
I/O
L14P_3
I/O
L14N_3
Y
‹
I/O
L11P_4
I/O
I/O
L01P_3
VRN_3
I/O
L01N_3
VRP_3
I/O
L07P_3
I/O
L07N_3
I/O
L09N_3
‹
‹
I/O
L09P_3
VREF_3
‹
A
A
I/O
L09N_4
I/O
L07N_4
I/O
L01N_4
VRP_4
I/O
L02P_3
I/O
L02N_3
VREF_3
I/O
L06P_3
I/O
L06N_3
‹
‹
A
B
I/O
L09P_4
I/O
L07P_4
I/O
L01P_4
VRN_4
GND
DONE
I/O
L03P_3
I/O
L03N_3
A
C
VCCO_4
I/O
L08N_4
I/O
L06N_4
VREF_4
I/O
GND
I/O
VREF_4
CCLK
A
D
I/O
L15N_4
I/O
L10N_4
I/O
L08P_4
I/O
L06P_4
I/O
L05N_4
I/O
L04N_4
GND
VCCAUX
A
E
I/O
L15P_4
I/O
L10P_4
I/O
I/O
I/O
L05P_4
I/O
L04P_4
VCCAUX
GND
A
F
I/O
L27P_4
D1
I/O
I/O
L30N_4
D2
I/O
L27N_4
DIN
D0
I/O
L24N_4
I/O
VREF_4
I/O
L16N_4
I/O
L30P_4
D3
I/O
L28N_4
I/O
L24P_4
I/O
L19P_4
I/O
L16P_4
IO
VREF_4
I/O
L28P_4
I/O
L25N_4
I/O
L22P_4
I/O
L31N_4
INIT_B
GND
I/O
L25P_4
I/O
L19N_4
I/O
L31P_4
DOUT
BUSY
I/O
VCCO_4
I/O
L32N_4
GCLK1
I/O
L29N_4
I/O
L32P_4
GCLK0
I/O
L29P_4
I/O
VCCO_4 VCCO_4 VCCINT
‹
I/O
L17N_4
I/O
L12N_4
‹
‹
I/O
L17P_4
I/O
L12P_4
‹
‹
I/O
L22N_4
VREF_4
I/O
L18N_4
I/O
‹
‹
I/O
L26N_4
I/O
L23N_4
I/O
L18P_4
‹
I/O
L26P_4
VREF_4
‹
‹
I/O
L23P_4
‹
VCCAUX
‹
Bank 4
DS099-4 (v1.5) July 13, 2004
Product Specification
‹
Right Half of Package
(top view)
Bank 2
I/O
15
Bank 3
14
Spartan-3 FPGA Family: Pinout Descriptions
DS099-4_12b_121103
www.xilinx.com
1-800-255-7778
69
R
Spartan-3 FPGA Family: Pinout Descriptions
FG900: 900-lead Fine-pitch Ball Grid
Array
The 900-lead fine-pitch ball grid array package, FG900,
supports three different Spartan-3 devices, including the
XC3S2000, the XC3S4000, and the XC3S5000. The footprints for the XC3S4000 and XC3S5000 are identical, as
shown in Table 34 and Figure 15. The XC3S2000, however,
has fewer I/O pins which consequently results in 68 unconnected pins on the FG900 package, labeled as “N.C.” In
Table 34 and Figure 15, these unconnected pins are indicated with a black diamond symbol (‹).
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
0
IO_L07P_0
IO_L07P_0
E8
I/O
0
IO_L08N_0
IO_L08N_0
D8
I/O
0
IO_L08P_0
IO_L08P_0
C8
I/O
0
IO_L09N_0
IO_L09N_0
B8
I/O
0
IO_L09P_0
IO_L09P_0
A8
I/O
0
IO_L10N_0
IO_L10N_0
J9
I/O
0
IO_L10P_0
IO_L10P_0
H9
I/O
0
IO_L11N_0
IO_L11N_0
G10
I/O
0
IO_L11P_0
IO_L11P_0
F10
I/O
0
IO_L12N_0
IO_L12N_0
C10
I/O
0
IO_L12P_0
IO_L12P_0
B10
I/O
If there is a difference between the XC3S2000 pinout and
the pinout for the XC3S4000 and XC3S5000, then that difference is highlighted in Table 34. If the table entry is
shaded, then there is an unconnected pin on the XC3S2000
that maps to a user-I/O pin on the XC3S4000 and
XC3S5000.
0
IO_L13N_0
IO_L13N_0
J10
I/O
0
IO_L13P_0
IO_L13P_0
K11
I/O
0
IO_L14N_0
IO_L14N_0
H11
I/O
0
IO_L14P_0
IO_L14P_0
G11
I/O
0
IO_L15N_0
IO_L15N_0
F11
I/O
0
IO_L15P_0
IO_L15P_0
E11
I/O
Pinout Table
0
IO_L16N_0
IO_L16N_0
D11
I/O
0
IO_L16P_0
IO_L16P_0
C11
I/O
0
IO_L17N_0
IO_L17N_0
B11
I/O
0
IO_L17P_0
IO_L17P_0
A11
I/O
Type
0
IO_L18N_0
IO_L18N_0
K12
I/O
IO_L18P_0
IO_L18P_0
J12
I/O
All the package pins appear in Table 34 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
Table 34: FG900 Package Pinout
Bank
FG900
Pin
Number
0
IO
IO
E15
I/O
0
0
IO
IO
K15
I/O
0
IO_L19N_0
IO_L19N_0
H12
I/O
IO_L19P_0
IO_L19P_0
G12
I/O
0
IO
IO
D13
I/O
0
0
IO
IO
K13
I/O
0
IO_L20N_0
IO_L20N_0
F12
I/O
IO_L20P_0
IO_L20P_0
E12
I/O
0
IO
IO
G8
I/O
0
0
IO/VREF_0
IO/VREF_0
F9
VREF
0
IO_L21N_0
IO_L21N_0
D12
I/O
IO_L21P_0
IO_L21P_0
C12
I/O
0
IO/VREF_0
IO/VREF_0
C4
VREF
0
0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
B4
DCI
0
IO_L22N_0
IO_L22N_0
B12
I/O
0
IO_L22P_0
IO_L22P_0
A12
I/O
IO_L01P_0/
VRN_0
IO_L01P_0/
VRN_0
A4
0
IO_L23N_0
IO_L23N_0
J13
I/O
0
IO_L23P_0
IO_L23P_0
H13
I/O
0
IO_L02N_0
IO_L02N_0
B5
I/O
0
IO_L24N_0
IO_L24N_0
F13
I/O
0
IO_L02P_0
IO_L02P_0
A5
I/O
0
IO_L24P_0
IO_L24P_0
E13
I/O
0
IO_L03N_0
IO_L03N_0
D5
I/O
0
IO_L25N_0
IO_L25N_0
B13
I/O
0
IO_L03P_0
IO_L03P_0
E6
I/O
0
IO_L25P_0
IO_L25P_0
A13
I/O
0
IO_L04N_0
IO_L04N_0
C6
I/O
0
IO_L26N_0
IO_L26N_0
K14
I/O
0
IO_L04P_0
IO_L04P_0
B6
I/O
0
VREF
IO_L05N_0
IO_L05N_0
F6
I/O
IO_L26P_0/
VREF_0
J14
0
IO_L26P_0/
VREF_0
0
IO_L05P_0/
VREF_0
IO_L05P_0/
VREF_0
F7
VREF
0
IO_L27N_0
IO_L27N_0
G14
I/O
0
IO_L27P_0
IO_L27P_0
F14
I/O
0
IO_L06N_0
IO_L06N_0
D7
I/O
0
IO_L28N_0
IO_L28N_0
C14
I/O
0
IO_L06P_0
IO_L06P_0
C7
I/O
0
IO_L28P_0
IO_L28P_0
B14
I/O
0
IO_L07N_0
IO_L07N_0
F8
I/O
0
IO_L29N_0
IO_L29N_0
J15
I/O
0
70
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
DCI
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
0
IO_L29P_0
IO_L29P_0
H15
I/O
1
IO_L05P_1
IO_L05P_1
F25
I/O
0
IO_L30N_0
IO_L30N_0
G15
I/O
1
IO_L30P_0
F15
I/O
IO_L06N_1/
VREF_1
VREF
IO_L30P_0
IO_L06N_1/
VREF_1
C24
0
0
IO_L31N_0
IO_L31N_0
D15
I/O
1
IO_L06P_1
IO_L06P_1
D24
I/O
0
IO_L31P_0/
VREF_0
IO_L31P_0/
VREF_0
C15
VREF
1
IO_L07N_1
IO_L07N_1
A24
I/O
1
IO_L07P_1
IO_L07P_1
B24
I/O
IO_L32N_0/
GCLK7
IO_L32N_0/
GCLK7
B15
1
IO_L08N_1
IO_L08N_1
H23
I/O
1
IO_L08P_1
IO_L08P_1
G24
I/O
0
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
A15
GCLK
1
IO_L09N_1
IO_L09N_1
F23
I/O
0
N.C. (‹)
IO_L35N_0
B7
I/O
1
IO_L09P_1
IO_L09P_1
G23
I/O
0
N.C. (‹)
IO_L35P_0
A7
I/O
1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
C23
VREF
0
N.C. (‹)
IO_L36N_0
G7
I/O
1
IO_L10P_1
IO_L10P_1
D23
I/O
0
N.C. (‹)
IO_L36P_0
H8
I/O
1
IO_L11N_1
IO_L11N_1
A23
I/O
0
N.C. (‹)
IO_L37N_0
E9
I/O
1
IO_L11P_1
IO_L11P_1
B23
I/O
0
N.C. (‹)
IO_L37P_0
D9
I/O
1
IO_L12N_1
IO_L12N_1
H22
I/O
0
N.C. (‹)
IO_L38N_0
B9
I/O
1
IO_L12P_1
IO_L12P_1
J22
I/O
0
N.C. (‹)
IO_L38P_0
A9
I/O
1
IO_L13N_1
IO_L13N_1
F22
I/O
0
VCCO_0
VCCO_0
C5
VCCO
1
IO_L13P_1
IO_L13P_1
E23
I/O
0
VCCO_0
VCCO_0
E7
VCCO
1
IO_L14N_1
IO_L14N_1
D22
I/O
0
VCCO_0
VCCO_0
C9
VCCO
1
IO_L14P_1
IO_L14P_1
E22
I/O
0
VCCO_0
VCCO_0
G9
VCCO
1
IO_L15N_1
IO_L15N_1
A22
I/O
0
VCCO_0
VCCO_0
J11
VCCO
1
IO_L15P_1
IO_L15P_1
B22
I/O
0
VCCO_0
VCCO_0
L12
VCCO
1
IO_L16N_1
IO_L16N_1
F21
I/O
0
VCCO_0
VCCO_0
C13
VCCO
1
IO_L16P_1
IO_L16P_1
G21
I/O
0
VCCO_0
VCCO_0
G13
VCCO
1
VREF
VCCO_0
VCCO_0
L13
VCCO
IO_L17N_1/
VREF_1
B21
0
IO_L17N_1/
VREF_1
0
VCCO_0
VCCO_0
L14
VCCO
1
IO_L17P_1
IO_L17P_1
C21
I/O
1
IO
IO
E25
I/O
1
IO_L18N_1
IO_L18N_1
G20
I/O
1
IO
IO
J21
I/O
1
IO_L18P_1
IO_L18P_1
H20
I/O
1
IO
IO
K20
I/O
1
IO_L19N_1
IO_L19N_1
E20
I/O
1
IO
IO
F18
I/O
1
IO_L19P_1
IO_L19P_1
F20
I/O
1
IO
IO
F16
I/O
1
IO_L20N_1
IO_L20N_1
C20
I/O
1
IO
IO
A16
I/O
1
IO_L20P_1
IO_L20P_1
D20
I/O
1
IO/VREF_1
IO/VREF_1
J17
VREF
1
IO_L21N_1
IO_L21N_1
A20
I/O
1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
A27
DCI
1
IO_L21P_1
IO_L21P_1
B20
I/O
1
IO_L22N_1
IO_L22N_1
J19
I/O
1
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
B27
DCI
1
IO_L22P_1
IO_L22P_1
K19
I/O
1
IO_L02N_1
IO_L02N_1
D26
I/O
1
IO_L23N_1
IO_L23N_1
G19
I/O
1
IO_L02P_1
IO_L02P_1
C27
I/O
1
IO_L23P_1
IO_L23P_1
H19
I/O
1
IO_L03N_1
IO_L03N_1
A26
I/O
1
IO_L24N_1
IO_L24N_1
E19
I/O
1
IO_L03P_1
IO_L03P_1
B26
I/O
1
IO_L24P_1
IO_L24P_1
F19
I/O
1
IO_L04N_1
IO_L04N_1
B25
I/O
1
IO_L25N_1
IO_L25N_1
C19
I/O
1
IO_L04P_1
IO_L04P_1
C25
I/O
1
IO_L25P_1
IO_L25P_1
D19
I/O
1
IO_L05N_1
IO_L05N_1
F24
I/O
1
IO_L26N_1
IO_L26N_1
A19
I/O
0
DS099-4 (v1.5) July 13, 2004
Product Specification
GCLK
www.xilinx.com
1-800-255-7778
71
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
Bank
B19
I/O
2
IO_L05N_2
IO_L05N_2
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
F28
I/O
1
IO_L26P_1
IO_L26P_1
1
IO_L27N_1
IO_L27N_1
F17
I/O
2
IO_L05P_2
IO_L05P_2
F29
I/O
1
IO_L27P_1
IO_L27P_1
G17
I/O
2
IO_L06N_2
IO_L06N_2
G27
I/O
1
IO_L28N_1
IO_L28N_1
B17
I/O
2
IO_L06P_2
IO_L06P_2
G28
I/O
1
IO_L28P_1
IO_L28P_1
C17
I/O
2
IO_L07N_2
IO_L07N_2
G29
I/O
1
IO_L29N_1
IO_L29N_1
J16
I/O
2
IO_L07P_2
IO_L07P_2
G30
I/O
1
IO_L29P_1
IO_L29P_1
K16
I/O
2
IO_L08N_2
IO_L08N_2
G25
I/O
1
IO_L30N_1
IO_L30N_1
G16
I/O
2
IO_L08P_2
IO_L08P_2
H24
I/O
1
IO_L30P_1
IO_L30P_1
H16
I/O
2
VREF
IO_L31N_1/
VREF_1
IO_L31N_1/
VREF_1
D16
VREF
IO_L09N_2/
VREF_2
H25
1
IO_L09N_2/
VREF_2
2
IO_L09P_2
IO_L09P_2
H26
I/O
1
IO_L31P_1
IO_L31P_1
E16
I/O
2
IO_L10N_2
IO_L10N_2
H27
I/O
1
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
B16
GCLK
2
IO_L10P_2
IO_L10P_2
H28
I/O
2
IO_L12N_2
IO_L12N_2
H29
I/O
1
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
C16
GCLK
2
IO_L12P_2
IO_L12P_2
H30
I/O
1
N.C. (‹)
IO_L37N_1
H18
I/O
2
IO_L13N_2
IO_L13N_2
J26
I/O
1
N.C. (‹)
IO_L37P_1
J18
I/O
2
IO_L13P_2/
VREF_2
IO_L13P_2/
VREF_2
J27
VREF
1
N.C. (‹)
IO_L38N_1
D18
I/O
2
IO_L14N_2
IO_L14N_2
J29
I/O
1
N.C. (‹)
IO_L38P_1
E18
I/O
2
IO_L14P_2
IO_L14P_2
J30
I/O
1
N.C. (‹)
IO_L39N_1
A18
I/O
2
IO_L15N_2
IO_L15N_2
J23
I/O
1
N.C. (‹)
IO_L39P_1
B18
I/O
2
IO_L15P_2
IO_L15P_2
K22
I/O
1
N.C. (‹)
IO_L40N_1
K17
I/O
2
IO_L16N_2
IO_L16N_2
K24
I/O
1
N.C. (‹)
IO_L40P_1
K18
I/O
2
IO_L16P_2
IO_L16P_2
K25
I/O
1
VCCO_1
VCCO_1
L17
VCCO
2
IO_L19N_2
IO_L19N_2
L25
I/O
1
VCCO_1
VCCO_1
C18
VCCO
2
IO_L19P_2
IO_L19P_2
L26
I/O
1
VCCO_1
VCCO_1
G18
VCCO
2
IO_L20N_2
IO_L20N_2
L27
I/O
1
VCCO_1
VCCO_1
L18
VCCO
2
IO_L20P_2
IO_L20P_2
L28
I/O
1
VCCO_1
VCCO_1
L19
VCCO
2
IO_L21N_2
IO_L21N_2
L29
I/O
1
VCCO_1
VCCO_1
J20
VCCO
2
IO_L21P_2
IO_L21P_2
L30
I/O
1
VCCO_1
VCCO_1
C22
VCCO
2
IO_L22N_2
IO_L22N_2
M22
I/O
1
VCCO_1
VCCO_1
G22
VCCO
2
IO_L22P_2
IO_L22P_2
M23
I/O
1
VCCO_1
VCCO_1
E24
VCCO
2
VCCO_1
C26
VCCO
IO_L23N_2/
VREF_2
VREF
VCCO_1
IO_L23N_2/
VREF_2
M24
1
2
IO
IO
J25
I/O
2
IO_L23P_2
IO_L23P_2
M25
I/O
2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
C29
DCI
2
IO_L24N_2
IO_L24N_2
M27
I/O
2
IO_L24P_2
IO_L24P_2
M28
I/O
2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
C30
DCI
2
IO_L26N_2
IO_L26N_2
M21
I/O
2
IO_L02N_2
IO_L02N_2
D27
I/O
2
IO_L26P_2
IO_L26P_2
N21
I/O
2
IO_L02P_2
IO_L02P_2
D28
I/O
2
IO_L27N_2
IO_L27N_2
N22
I/O
2
IO_L03N_2/
VREF_2
IO_L03N_2/
VREF_2
D29
VREF
2
IO_L27P_2
IO_L27P_2
N23
I/O
2
IO_L28N_2
IO_L28N_2
M26
I/O
2
IO_L28P_2
IO_L28P_2
N25
I/O
2
IO_L29N_2
IO_L29N_2
N26
I/O
2
IO_L29P_2
IO_L29P_2
N27
I/O
2
72
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
IO_L03P_2
IO_L03P_2
D30
I/O
2
IO_L04N_2
IO_L04N_2
E29
I/O
2
IO_L04P_2
IO_L04P_2
E30
I/O
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
Type
Bank
FG900
Pin
Number
Type
3
IO_L02N_3/
VREF_3
IO_L02N_3/
VREF_3
AG28
VREF
2
IO_L31N_2
IO_L31N_2
N29
I/O
2
IO_L31P_2
IO_L31P_2
N30
I/O
2
IO_L32N_2
IO_L32N_2
P21
I/O
3
IO_L02P_3
IO_L02P_3
AG27
I/O
2
IO_L32P_2
IO_L32P_2
P22
I/O
3
IO_L03N_3
IO_L03N_3
AG30
I/O
2
IO_L33N_2
IO_L33N_2
P24
I/O
3
IO_L03P_3
IO_L03P_3
AG29
I/O
IO_L04N_3
IO_L04N_3
AF30
I/O
2
IO_L33P_2
IO_L33P_2
P25
I/O
3
2
IO_L34N_2/
VREF_2
IO_L34N_2/
VREF_2
P28
VREF
3
IO_L04P_3
IO_L04P_3
AF29
I/O
3
IO_L05N_3
IO_L05N_3
AE26
I/O
2
IO_L34P_2
IO_L34P_2
P29
I/O
3
IO_L05P_3
IO_L05P_3
AF27
I/O
2
IO_L35N_2
IO_L35N_2
R21
I/O
3
IO_L06N_3
IO_L06N_3
AE29
I/O
2
IO_L35P_2
IO_L35P_2
R22
I/O
3
IO_L06P_3
IO_L06P_3
AE28
I/O
2
IO_L37N_2
IO_L37N_2
R23
I/O
3
IO_L07N_3
IO_L07N_3
AD28
I/O
2
IO_L37P_2
IO_L37P_2
R24
I/O
3
IO_L07P_3
IO_L07P_3
AD27
I/O
2
IO_L38N_2
IO_L38N_2
R25
I/O
3
IO_L08N_3
IO_L08N_3
AD30
I/O
2
IO_L38P_2
IO_L38P_2
R26
I/O
3
IO_L08P_3
IO_L08P_3
AD29
I/O
2
IO_L39N_2
IO_L39N_2
R27
I/O
3
IO_L09N_3
IO_L09N_3
AC24
I/O
2
IO_L39P_2
IO_L39P_2
R28
I/O
3
IO_L40N_2
R29
I/O
IO_L09P_3/
VREF_3
VREF
IO_L40N_2
IO_L09P_3/
VREF_3
AD25
2
2
IO_L40P_2/
VREF_2
IO_L40P_2/
VREF_2
R30
VREF
3
IO_L10N_3
IO_L10N_3
AC26
I/O
3
IO_L10P_3
IO_L10P_3
AC25
I/O
2
N.C. (‹)
IO_L41N_2
E27
I/O
3
IO_L11N_3
IO_L11N_3
AC28
I/O
2
N.C. (‹)
IO_L41P_2
F26
I/O
3
IO_L11P_3
IO_L11P_3
AC27
I/O
2
N.C. (‹)
IO_L45N_2
K28
I/O
3
IO_L45P_2
K29
I/O
IO_L13N_3/
VREF_3
VREF
N.C. (‹)
IO_L13N_3/
VREF_3
AC30
2
2
N.C. (‹)
IO_L46N_2
K21
I/O
3
IO_L13P_3
IO_L13P_3
AC29
I/O
2
N.C. (‹)
IO_L46P_2
L21
I/O
3
IO_L14N_3
IO_L14N_3
AB27
I/O
IO_L14P_3
IO_L14P_3
AB26
I/O
2
N.C. (‹)
IO_L47N_2
L23
I/O
3
2
N.C. (‹)
IO_L47P_2
L24
I/O
3
IO_L15N_3
IO_L15N_3
AB30
I/O
I/O
3
IO_L15P_3
IO_L15P_3
AB29
I/O
IO_L16N_3
IO_L16N_3
AA22
I/O
I/O
2
N.C. (‹)
IO_L50N_2
M29
2
N.C. (‹)
IO_L50P_2
M30
I/O
3
2
VCCO_2
VCCO_2
M20
VCCO
3
IO_L16P_3
IO_L16P_3
AB23
2
VCCO_2
VCCO_2
N20
VCCO
3
IO_L17N_3
IO_L17N_3
AA25
I/O
3
IO_L17P_3/
VREF_3
IO_L17P_3/
VREF_3
AA24
VREF
3
IO_L19N_3
IO_L19N_3
AA29
I/O
3
IO_L19P_3
IO_L19P_3
AA28
I/O
3
IO_L20N_3
IO_L20N_3
Y21
I/O
3
IO_L20P_3
IO_L20P_3
AA21
I/O
3
IO_L21N_3
IO_L21N_3
Y24
I/O
3
IO_L21P_3
IO_L21P_3
Y23
I/O
3
IO_L22N_3
IO_L22N_3
Y26
I/O
3
IO_L22P_3
IO_L22P_3
Y25
I/O
3
IO_L23N_3
IO_L23N_3
Y28
I/O
3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
Y27
VREF
3
IO_L24N_3
IO_L24N_3
Y30
I/O
2
VCCO_2
VCCO_2
P20
VCCO
2
VCCO_2
VCCO_2
L22
VCCO
2
VCCO_2
VCCO_2
J24
VCCO
2
VCCO_2
VCCO_2
N24
VCCO
2
VCCO_2
VCCO_2
G26
VCCO
2
VCCO_2
VCCO_2
E28
VCCO
2
VCCO_2
VCCO_2
J28
VCCO
2
VCCO_2
VCCO_2
N28
VCCO
3
IO
IO
AB25
I/O
3
IO_L01N_3/
VRP_3
IO_L01N_3/
VRP_3
AH30
DCI
3
IO_L01P_3/
VRN_3
IO_L01P_3/
VRN_3
AH29
DCI
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
73
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
AB28
VCCO
3
IO_L24P_3
IO_L24P_3
Y29
I/O
3
VCCO_3
VCCO_3
3
IO_L26N_3
IO_L26N_3
W30
I/O
3
VCCO_3
VCCO_3
AF28
VCCO
3
IO_L26P_3
IO_L26P_3
W29
I/O
4
IO
IO
AA16
I/O
3
IO_L27N_3
IO_L27N_3
V21
I/O
4
IO
IO
AG18
I/O
3
IO_L27P_3
IO_L27P_3
W21
I/O
4
IO
IO
AA18
I/O
3
IO_L28N_3
IO_L28N_3
V23
I/O
4
IO
IO
AE22
I/O
3
IO_L28P_3
IO_L28P_3
V22
I/O
4
IO
IO
AD23
I/O
3
IO_L29N_3
IO_L29N_3
V25
I/O
4
IO
IO
AH27
I/O
3
IO_L29P_3
IO_L29P_3
W26
I/O
4
IO/VREF_4
IO/VREF_4
AF16
VREF
3
IO_L31N_3
IO_L31N_3
V30
I/O
4
IO/VREF_4
IO/VREF_4
AK28
VREF
3
IO_L31P_3
IO_L31P_3
V29
I/O
4
DCI
IO_L32N_3
IO_L32N_3
U22
I/O
IO_L01N_4/
VRP_4
AJ27
3
IO_L01N_4/
VRP_4
3
IO_L32P_3
IO_L32P_3
U21
I/O
4
DCI
IO_L33N_3
IO_L33N_3
U25
I/O
IO_L01P_4/
VRN_4
AK27
3
IO_L01P_4/
VRN_4
3
IO_L33P_3
IO_L33P_3
U24
I/O
4
IO_L02N_4
IO_L02N_4
AJ26
I/O
3
IO_L34N_3
IO_L34N_3
U29
I/O
4
IO_L02P_4
IO_L02P_4
AK26
I/O
3
IO_L34P_3/
VREF_3
IO_L34P_3/
VREF_3
U28
VREF
4
IO_L03N_4
IO_L03N_4
AG26
I/O
4
IO_L03P_4
IO_L03P_4
AF25
I/O
3
IO_L35N_3
IO_L35N_3
T22
I/O
4
IO_L04N_4
IO_L04N_4
AD24
I/O
IO_L04P_4
IO_L04P_4
AC23
I/O
3
IO_L35P_3
IO_L35P_3
T21
I/O
4
3
IO_L37N_3
IO_L37N_3
T24
I/O
4
IO_L05N_4
IO_L05N_4
AE23
I/O
IO_L05P_4
IO_L05P_4
AF23
I/O
3
IO_L37P_3
IO_L37P_3
T23
I/O
4
3
IO_L38N_3
IO_L38N_3
T26
I/O
4
VREF
IO_L38P_3
IO_L38P_3
T25
I/O
IO_L06N_4/
VREF_4
AG23
3
IO_L06N_4/
VREF_4
3
IO_L39N_3
IO_L39N_3
T28
I/O
4
IO_L06P_4
IO_L06P_4
AH23
I/O
3
IO_L39P_3
IO_L39P_3
T27
I/O
4
IO_L07N_4
IO_L07N_4
AJ23
I/O
3
IO_L40N_3/
VREF_3
IO_L40N_3/
VREF_3
T30
VREF
4
IO_L07P_4
IO_L07P_4
AK23
I/O
4
IO_L08N_4
IO_L08N_4
AB22
I/O
I/O
4
IO_L08P_4
IO_L08P_4
AC22
I/O
IO_L09N_4
IO_L09N_4
AF22
I/O
AG22
I/O
3
IO_L40P_3
IO_L40P_3
T29
3
N.C. (‹)
IO_L46N_3
W23
I/O
4
3
N.C. (‹)
IO_L46P_3
W22
I/O
4
IO_L09P_4
IO_L09P_4
3
N.C. (‹)
IO_L47N_3
W25
I/O
4
IO_L10N_4
IO_L10N_4
AJ22
I/O
IO_L10P_4
IO_L10P_4
AK22
I/O
3
N.C. (‹)
IO_L47P_3
W24
I/O
4
3
N.C. (‹)
IO_L48N_3
W28
I/O
4
IO_L11N_4
IO_L11N_4
AD21
I/O
I/O
4
IO_L11P_4
IO_L11P_4
AE21
I/O
IO_L12N_4
IO_L12N_4
AH21
I/O
3
N.C. (‹)
IO_L48P_3
W27
3
N.C. (‹)
IO_L50N_3
V27
I/O
4
3
N.C. (‹)
IO_L50P_3
V26
I/O
4
IO_L12P_4
IO_L12P_4
AJ21
I/O
3
VCCO_3
VCCO_3
U20
VCCO
4
IO_L13N_4
IO_L13N_4
AB21
I/O
IO_L13P_4
IO_L13P_4
AA20
I/O
3
VCCO_3
VCCO_3
V20
VCCO
4
3
VCCO_3
VCCO_3
W20
VCCO
4
IO_L14N_4
IO_L14N_4
AC20
I/O
IO_L14P_4
IO_L14P_4
AD20
I/O
3
VCCO_3
VCCO_3
Y22
VCCO
4
3
VCCO_3
VCCO_3
V24
VCCO
4
IO_L15N_4
IO_L15N_4
AE20
I/O
VCCO
4
IO_L15P_4
IO_L15P_4
AF20
I/O
IO_L16N_4
IO_L16N_4
AG20
I/O
IO_L16P_4
IO_L16P_4
AH20
I/O
3
74
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
VCCO_3
VCCO_3
AB24
3
VCCO_3
VCCO_3
AD26
VCCO
4
3
VCCO_3
VCCO_3
V28
VCCO
4
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
AH24
I/O
4
IO_L17N_4
IO_L17N_4
AJ20
I/O
4
N.C. (‹)
IO_L35P_4
4
IO_L17P_4
IO_L17P_4
AK20
I/O
4
N.C. (‹)
IO_L38N_4
AJ24
I/O
4
IO_L18N_4
IO_L18N_4
AA19
I/O
4
N.C. (‹)
IO_L38P_4
AK24
I/O
4
IO_L18P_4
IO_L18P_4
AB19
I/O
4
VCCO_4
VCCO_4
Y17
VCCO
4
IO_L19N_4
IO_L19N_4
AC19
I/O
4
VCCO_4
VCCO_4
Y18
VCCO
4
IO_L19P_4
IO_L19P_4
AD19
I/O
4
VCCO_4
VCCO_4
AD18
VCCO
4
IO_L20N_4
IO_L20N_4
AE19
I/O
4
VCCO_4
VCCO_4
AH18
VCCO
4
IO_L20P_4
IO_L20P_4
AF19
I/O
4
VCCO_4
VCCO_4
Y19
VCCO
4
IO_L21N_4
IO_L21N_4
AG19
I/O
4
VCCO_4
VCCO_4
AB20
VCCO
4
IO_L21P_4
IO_L21P_4
AH19
I/O
4
VCCO_4
VCCO_4
AD22
VCCO
4
IO_L22N_4/
VREF_4
IO_L22N_4/
VREF_4
AJ19
VREF
4
VCCO_4
VCCO_4
AH22
VCCO
4
VCCO_4
VCCO_4
AF24
VCCO
4
IO_L22P_4
IO_L22P_4
AK19
I/O
4
VCCO_4
VCCO_4
AH26
VCCO
4
IO_L23N_4
IO_L23N_4
AB18
I/O
5
IO
IO
AE6
I/O
4
IO_L23P_4
IO_L23P_4
AC18
I/O
5
IO
IO
AB10
I/O
4
IO_L24N_4
IO_L24N_4
AE18
I/O
5
IO
IO
AA11
I/O
4
IO_L24P_4
IO_L24P_4
AF18
I/O
5
IO
IO
AA15
I/O
4
IO_L25N_4
IO_L25N_4
AJ18
I/O
5
IO
IO
AE15
I/O
4
IO_L25P_4
IO_L25P_4
AK18
I/O
5
IO/VREF_5
IO/VREF_5
AH4
VREF
4
IO_L26N_4
IO_L26N_4
AA17
I/O
5
IO/VREF_5
IO/VREF_5
AK15
VREF
4
IO_L26P_4/
VREF_4
IO_L26P_4/
VREF_4
AB17
VREF
5
IO_L01N_5/
RDWR_B
IO_L01N_5/
RDWR_B
AK4
DUAL
4
IO_L27N_4/
DIN/D0
IO_L27N_4/
DIN/D0
AD17
DUAL
5
IO_L01P_5/
CS_B
IO_L01P_5/
CS_B
AJ4
DUAL
4
IO_L27P_4/
D1
IO_L27P_4/
D1
AE17
DUAL
5
IO_L02N_5
IO_L02N_5
AK5
I/O
4
IO_L28N_4
IO_L28N_4
AH17
I/O
5
IO_L02P_5
IO_L02P_5
AJ5
I/O
4
IO_L28P_4
IO_L28P_4
AJ17
I/O
5
IO_L03N_5
IO_L03N_5
AF6
I/O
4
IO_L29N_4
IO_L29N_4
AB16
I/O
5
IO_L03P_5
IO_L03P_5
AG5
I/O
4
IO_L29P_4
IO_L29P_4
AC16
I/O
5
IO_L04N_5
IO_L04N_5
AJ6
I/O
4
IO_L30N_4/
D2
IO_L30N_4/
D2
AD16
DUAL
5
IO_L04P_5
IO_L04P_5
AH6
I/O
5
IO_L05N_5
IO_L05N_5
AE7
I/O
5
IO_L05P_5
IO_L05P_5
AD7
I/O
5
IO_L06N_5
IO_L06N_5
AH7
I/O
5
IO_L06P_5
IO_L06P_5
AG7
I/O
5
IO_L07N_5
IO_L07N_5
AK8
I/O
5
IO_L07P_5
IO_L07P_5
AJ8
I/O
5
IO_L08N_5
IO_L08N_5
AC9
I/O
5
IO_L08P_5
IO_L08P_5
AB9
I/O
5
IO_L09N_5
IO_L09N_5
AG9
I/O
5
IO_L09P_5
IO_L09P_5
AF9
I/O
5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
AK9
DCI
5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
AJ9
DCI
5
IO_L11N_5/
VREF_5
IO_L11N_5/
VREF_5
AE10
VREF
4
IO_L30P_4/
D3
IO_L30P_4/
D3
AE16
DUAL
4
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
AG16
DUAL
4
IO_L31P_4/
DOUT/BUSY
IO_L31P_4/
DOUT/BUSY
AH16
DUAL
4
IO_L32N_4/
GCLK1
IO_L32N_4/
GCLK1
AJ16
GCLK
4
IO_L32P_4/
GCLK0
IO_L32P_4/
GCLK0
AK16
GCLK
4
N.C. (‹)
IO_L33N_4
AH25
I/O
4
N.C. (‹)
IO_L33P_4
AJ25
I/O
4
N.C. (‹)
IO_L34N_4
AE25
I/O
4
N.C. (‹)
IO_L34P_4
AE24
I/O
4
N.C. (‹)
IO_L35N_4
AG24
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
75
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
FG900
Pin
Number
Type
Bank
Type
AE9
I/O
5
IO_L31P_5/
D5
IO_L31P_5/
D5
AF15
DUAL
5
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
AJ15
GCLK
5
IO_L32P_5/
GCLK2
IO_L32P_5/
GCLK2
AH15
GCLK
5
N.C. (‹)
IO_L35N_5
AK7
I/O
5
N.C. (‹)
IO_L35P_5
AJ7
I/O
5
N.C. (‹)
IO_L36N_5
AD8
I/O
5
N.C. (‹)
IO_L36P_5
AC8
I/O
5
N.C. (‹)
IO_L37N_5
AF8
I/O
5
N.C. (‹)
IO_L37P_5
AE8
I/O
5
N.C. (‹)
IO_L38N_5
AH8
I/O
5
N.C. (‹)
IO_L38P_5
AG8
I/O
5
VCCO_5
VCCO_5
AH5
VCCO
5
VCCO_5
VCCO_5
AF7
VCCO
5
VCCO_5
VCCO_5
AD9
VCCO
5
VCCO_5
VCCO_5
AH9
VCCO
5
VCCO_5
VCCO_5
AB11
VCCO
5
VCCO_5
VCCO_5
Y12
VCCO
5
VCCO_5
VCCO_5
Y13
VCCO
5
VCCO_5
VCCO_5
AD13
VCCO
5
VCCO_5
VCCO_5
AH13
VCCO
5
VCCO_5
VCCO_5
Y14
VCCO
6
IO
IO
AB6
I/O
6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
AH2
DCI
6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
AH1
DCI
I/O
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
5
IO_L11P_5
IO_L11P_5
5
IO_L12N_5
IO_L12N_5
AJ10
I/O
5
IO_L12P_5
IO_L12P_5
AH10
I/O
5
IO_L13N_5
IO_L13N_5
AD11
I/O
5
IO_L13P_5
IO_L13P_5
AD10
I/O
5
IO_L14N_5
IO_L14N_5
AF11
I/O
5
IO_L14P_5
IO_L14P_5
AE11
I/O
5
IO_L15N_5
IO_L15N_5
AH11
I/O
5
IO_L15P_5
IO_L15P_5
AG11
I/O
5
IO_L16N_5
IO_L16N_5
AK11
I/O
5
IO_L16P_5
IO_L16P_5
AJ11
I/O
5
IO_L17N_5
IO_L17N_5
AB12
I/O
5
IO_L17P_5
IO_L17P_5
AC11
I/O
5
IO_L18N_5
IO_L18N_5
AD12
I/O
5
IO_L18P_5
IO_L18P_5
AC12
I/O
5
IO_L19N_5
IO_L19N_5
AF12
I/O
5
IO_L19P_5/
VREF_5
IO_L19P_5/
VREF_5
AE12
VREF
5
IO_L20N_5
IO_L20N_5
AH12
I/O
5
IO_L20P_5
IO_L20P_5
AG12
I/O
5
IO_L21N_5
IO_L21N_5
AK12
I/O
5
IO_L21P_5
IO_L21P_5
AJ12
I/O
5
IO_L22N_5
IO_L22N_5
AA13
I/O
5
IO_L22P_5
IO_L22P_5
AA12
I/O
5
IO_L23N_5
IO_L23N_5
AC13
I/O
5
IO_L23P_5
IO_L23P_5
AB13
I/O
5
IO_L24N_5
IO_L24N_5
AG13
I/O
5
IO_L24P_5
IO_L24P_5
AF13
I/O
5
IO_L25N_5
IO_L25N_5
AK13
I/O
6
IO_L02N_6
IO_L02N_6
AG4
5
IO_L25P_5
IO_L25P_5
AJ13
I/O
6
IO_L02P_6
IO_L02P_6
AG3
I/O
5
IO_L26N_5
IO_L26N_5
AB14
I/O
6
VREF
IO_L26P_5
IO_L26P_5
AA14
I/O
IO_L03N_6/
VREF_6
AG2
5
IO_L03N_6/
VREF_6
5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
AE14
VREF
6
IO_L03P_6
IO_L03P_6
AG1
I/O
6
IO_L04N_6
IO_L04N_6
AF2
I/O
5
IO_L27P_5
IO_L27P_5
AE13
I/O
6
IO_L04P_6
IO_L04P_6
AF1
I/O
5
IO_L28N_5/
D6
IO_L28N_5/
D6
AJ14
DUAL
6
IO_L05N_6
IO_L05N_6
AF4
I/O
6
IO_L05P_6
IO_L05P_6
AE5
I/O
IO_L28P_5/
D7
IO_L28P_5/
D7
AH14
6
IO_L06N_6
IO_L06N_6
AE3
I/O
5
IO_L29N_5
IO_L29N_5
AC15
I/O
6
IO_L06P_6
IO_L06P_6
AE2
I/O
5
IO_L29P_5/
VREF_5
IO_L29P_5/
VREF_5
AB15
VREF
6
IO_L07N_6
IO_L07N_6
AD4
I/O
6
IO_L07P_6
IO_L07P_6
AD3
I/O
5
IO_L30N_5
IO_L30N_5
AD15
I/O
6
IO_L08N_6
IO_L08N_6
AD2
I/O
IO_L08P_6
IO_L08P_6
AD1
I/O
IO_L09N_6/
VREF_6
IO_L09N_6/
VREF_6
AD6
VREF
5
76
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
DUAL
5
IO_L30P_5
IO_L30P_5
AD14
I/O
6
5
IO_L31N_5/
D4
IO_L31N_5/
D4
AG15
DUAL
6
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
6
IO_L09P_6
IO_L09P_6
AC7
I/O
6
IO_L33P_6
IO_L33P_6
V1
I/O
6
IO_L10N_6
IO_L10N_6
AC6
I/O
6
IO_L10P_6
AC5
I/O
IO_L34N_6/
VREF_6
VREF
IO_L10P_6
IO_L34N_6/
VREF_6
U10
6
6
IO_L11N_6
IO_L11N_6
AC4
I/O
6
IO_L34P_6
IO_L34P_6
U9
I/O
6
IO_L11P_6
IO_L11P_6
AC3
I/O
6
IO_L35N_6
IO_L35N_6
U7
I/O
IO_L35P_6
IO_L35P_6
U6
I/O
6
IO_L13N_6
IO_L13N_6
AC2
I/O
6
6
IO_L13P_6/
VREF_6
IO_L13P_6/
VREF_6
AC1
VREF
6
N.C. (‹)
IO_L36N_6
U3
I/O
6
N.C. (‹)
IO_L36P_6
U2
I/O
6
IO_L14N_6
IO_L14N_6
AB5
I/O
6
IO_L37N_6
IO_L37N_6
T10
I/O
6
IO_L14P_6
IO_L14P_6
AB4
I/O
6
IO_L37P_6
IO_L37P_6
T9
I/O
6
IO_L15N_6
IO_L15N_6
AB2
I/O
6
IO_L38N_6
IO_L38N_6
T6
I/O
6
IO_L15P_6
IO_L15P_6
AB1
I/O
6
IO_L38P_6
IO_L38P_6
T5
I/O
6
IO_L16N_6
IO_L16N_6
AB8
I/O
6
IO_L39N_6
IO_L39N_6
T4
I/O
6
IO_L16P_6
IO_L16P_6
AA9
I/O
6
IO_L39P_6
IO_L39P_6
T3
I/O
6
IO_L17N_6
IO_L17N_6
AA7
I/O
6
IO_L40N_6
IO_L40N_6
T2
I/O
6
IO_L17P_6/
VREF_6
IO_L17P_6/
VREF_6
AA6
VREF
6
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
T1
VREF
6
IO_L19N_6
IO_L19N_6
AA3
I/O
6
N.C. (‹)
IO_L45N_6
Y4
I/O
6
IO_L19P_6
IO_L19P_6
AA2
I/O
6
N.C. (‹)
IO_L45P_6
Y3
I/O
6
IO_L20N_6
IO_L20N_6
AA10
I/O
6
N.C. (‹)
IO_L52N_6
T8
I/O
6
IO_L20P_6
IO_L20P_6
Y10
I/O
6
N.C. (‹)
IO_L52P_6
T7
I/O
6
IO_L21N_6
IO_L21N_6
Y8
I/O
6
VCCO_6
VCCO_6
V3
VCCO
6
IO_L21P_6
IO_L21P_6
Y7
I/O
6
VCCO_6
VCCO_6
AB3
VCCO
6
IO_L22N_6
IO_L22N_6
Y6
I/O
6
VCCO_6
VCCO_6
AF3
VCCO
6
IO_L22P_6
IO_L22P_6
Y5
I/O
6
VCCO_6
VCCO_6
AD5
VCCO
6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
Y2
VREF
6
VCCO_6
VCCO_6
V7
VCCO
6
VCCO_6
VCCO_6
AB7
VCCO
6
IO_L24P_6
IO_L24P_6
Y1
I/O
6
VCCO_6
VCCO_6
Y9
VCCO
6
N.C. (‹)
IO_L25N_6
W9
I/O
6
VCCO_6
VCCO_6
U11
VCCO
6
N.C. (‹)
IO_L25P_6
W8
I/O
6
VCCO_6
VCCO_6
V11
VCCO
6
IO_L26N_6
IO_L26N_6
W7
I/O
6
VCCO_6
VCCO_6
W11
VCCO
6
IO_L26P_6
IO_L26P_6
W6
I/O
7
IO
IO
J6
I/O
6
IO_L27N_6
IO_L27N_6
W4
I/O
7
IO_L27P_6
W3
I/O
IO_L01N_7/
VRP_7
DCI
IO_L27P_6
IO_L01N_7/
VRP_7
C1
6
6
IO_L28N_6
IO_L28N_6
W2
I/O
7
IO_L28P_6
W1
I/O
IO_L01P_7/
VRN_7
DCI
IO_L28P_6
IO_L01P_7/
VRN_7
C2
6
6
IO_L29N_6
IO_L29N_6
W10
I/O
7
IO_L02N_7
IO_L02N_7
D3
I/O
6
IO_L29P_6
IO_L29P_6
V10
I/O
7
IO_L02P_7
IO_L02P_7
D4
I/O
V9
I/O
7
IO_L03N_7/
VREF_7
IO_L03N_7/
VREF_7
D1
VREF
7
IO_L03P_7
IO_L03P_7
D2
I/O
7
IO_L04N_7
IO_L04N_7
E1
I/O
7
IO_L04P_7
IO_L04P_7
E2
I/O
7
IO_L05N_7
IO_L05N_7
F5
I/O
7
IO_L05P_7
IO_L05P_7
E4
I/O
7
IO_L06N_7
IO_L06N_7
F2
I/O
6
N.C. (‹)
IO_L30N_6
6
N.C. (‹)
IO_L30P_6
V8
I/O
6
IO_L31N_6
IO_L31N_6
W5
I/O
6
IO_L31P_6
IO_L31P_6
V6
I/O
6
IO_L32N_6
IO_L32N_6
V5
I/O
6
IO_L32P_6
IO_L32P_6
V4
I/O
6
IO_L33N_6
IO_L33N_6
V2
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
77
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
78
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
7
IO_L06P_7
IO_L06P_7
F3
I/O
7
IO_L29P_7
IO_L29P_7
N9
I/O
7
IO_L07N_7
IO_L07N_7
G3
I/O
7
IO_L31N_7
IO_L31N_7
N1
I/O
7
IO_L07P_7
IO_L07P_7
G4
I/O
7
IO_L31P_7
IO_L31P_7
N2
I/O
7
IO_L08N_7
IO_L08N_7
G1
I/O
7
IO_L32N_7
IO_L32N_7
P9
I/O
7
IO_L08P_7
IO_L08P_7
G2
I/O
7
IO_L32P_7
IO_L32P_7
P10
I/O
7
IO_L09N_7
IO_L09N_7
H7
I/O
7
IO_L33N_7
IO_L33N_7
P6
I/O
7
IO_L09P_7
IO_L09P_7
G6
I/O
7
IO_L33P_7
IO_L33P_7
P7
I/O
7
IO_L10N_7
IO_L10N_7
H5
I/O
7
IO_L34N_7
IO_L34N_7
P2
I/O
7
IO_L10P_7/
VREF_7
IO_L10P_7/
VREF_7
H6
VREF
7
IO_L34P_7
IO_L34P_7
P3
I/O
7
IO_L35N_7
IO_L35N_7
R9
I/O
7
IO_L11N_7
IO_L11N_7
H3
I/O
7
IO_L35P_7
IO_L35P_7
R10
I/O
7
IO_L11P_7
IO_L11P_7
H4
I/O
7
IO_L37N_7
IO_L37N_7
R7
I/O
7
IO_L13N_7
IO_L13N_7
H1
I/O
7
VREF
IO_L13P_7
IO_L13P_7
H2
I/O
IO_L37P_7/
VREF_7
R8
7
IO_L37P_7/
VREF_7
7
IO_L14N_7
IO_L14N_7
J4
I/O
7
IO_L38N_7
IO_L38N_7
R5
I/O
7
IO_L14P_7
IO_L14P_7
J5
I/O
7
IO_L38P_7
IO_L38P_7
R6
I/O
7
IO_L15N_7
IO_L15N_7
J1
I/O
7
IO_L39N_7
IO_L39N_7
R3
I/O
7
IO_L15P_7
IO_L15P_7
J2
I/O
7
IO_L39P_7
IO_L39P_7
R4
I/O
7
IO_L16N_7
IO_L16N_7
K9
I/O
7
IO_L16P_7/
VREF_7
J8
VREF
IO_L40N_7/
VREF_7
VREF
IO_L16P_7/
VREF_7
IO_L40N_7/
VREF_7
R1
7
7
IO_L40P_7
IO_L40P_7
R2
I/O
7
IO_L17N_7
IO_L17N_7
K6
I/O
7
N.C. (‹)
IO_L46N_7
M8
I/O
7
IO_L17P_7
IO_L17P_7
K7
I/O
7
N.C. (‹)
IO_L46P_7
M9
I/O
7
IO_L19N_7/
VREF_7
IO_L19N_7/
VREF_7
K2
VREF
7
N.C. (‹)
IO_L49N_7
N6
I/O
7
N.C. (‹)
IO_L49P_7
M5
I/O
7
IO_L19P_7
IO_L19P_7
K3
I/O
7
N.C. (‹)
IO_L50N_7
N4
I/O
7
IO_L20N_7
IO_L20N_7
L10
I/O
7
N.C. (‹)
IO_L50P_7
N5
I/O
7
IO_L20P_7
IO_L20P_7
K10
I/O
7
VCCO_7
VCCO_7
E3
VCCO
7
IO_L21N_7
IO_L21N_7
L7
I/O
7
VCCO_7
VCCO_7
J3
VCCO
7
IO_L21P_7
IO_L21P_7
L8
I/O
7
VCCO_7
VCCO_7
N3
VCCO
7
IO_L22N_7
IO_L22N_7
L5
I/O
7
VCCO_7
VCCO_7
G5
VCCO
7
IO_L22P_7
IO_L22P_7
L6
I/O
7
VCCO_7
VCCO_7
J7
VCCO
7
IO_L23N_7
IO_L23N_7
L3
I/O
7
VCCO_7
VCCO_7
N7
VCCO
7
IO_L23P_7
IO_L23P_7
L4
I/O
7
VCCO_7
VCCO_7
L9
VCCO
7
IO_L24N_7
IO_L24N_7
L1
I/O
7
VCCO_7
VCCO_7
M11
VCCO
7
IO_L24P_7
IO_L24P_7
L2
I/O
7
VCCO_7
VCCO_7
N11
VCCO
7
N.C. (‹)
IO_L25N_7
M6
I/O
7
VCCO_7
VCCO_7
P11
VCCO
7
N.C. (‹)
IO_L25P_7
M7
I/O
N/A
GND
GND
A1
GND
7
IO_L26N_7
IO_L26N_7
M3
I/O
N/A
GND
GND
B1
GND
7
IO_L26P_7
IO_L26P_7
M4
I/O
N/A
GND
GND
F1
GND
7
IO_L27N_7
IO_L27N_7
M1
I/O
N/A
GND
GND
K1
GND
7
IO_L27P_7/
VREF_7
IO_L27P_7/
VREF_7
M2
VREF
N/A
GND
GND
P1
GND
7
IO_L28N_7
IO_L28N_7
N10
I/O
N/A
GND
GND
U1
GND
7
IO_L28P_7
IO_L28P_7
M10
I/O
N/A
GND
GND
AA1
GND
7
IO_L29N_7
IO_L29N_7
N8
I/O
N/A
GND
GND
AE1
GND
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
XC3S4000
XC3S5000
Pin Name
XC3S2000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
N/A
GND
GND
AJ1
GND
N/A
GND
GND
P15
GND
N/A
GND
GND
AK1
GND
N/A
GND
GND
R15
GND
N/A
GND
GND
A2
GND
N/A
GND
GND
T15
GND
N/A
GND
GND
B2
GND
N/A
GND
GND
U15
GND
N/A
GND
GND
AJ2
GND
N/A
GND
GND
V15
GND
N/A
GND
GND
E5
GND
N/A
GND
GND
W15
GND
N/A
GND
GND
K5
GND
N/A
GND
GND
M16
GND
N/A
GND
GND
P5
GND
N/A
GND
GND
N16
GND
N/A
GND
GND
U5
GND
N/A
GND
GND
P16
GND
N/A
GND
GND
AA5
GND
N/A
GND
GND
R16
GND
N/A
GND
GND
AF5
GND
N/A
GND
GND
T16
GND
N/A
GND
GND
A6
GND
N/A
GND
GND
U16
GND
N/A
GND
GND
AK6
GND
N/A
GND
GND
V16
GND
N/A
GND
GND
K8
GND
N/A
GND
GND
W16
GND
N/A
GND
GND
P8
GND
N/A
GND
GND
A17
GND
N/A
GND
GND
U8
GND
N/A
GND
GND
E17
GND
N/A
GND
GND
AA8
GND
N/A
GND
GND
H17
GND
N/A
GND
GND
A10
GND
N/A
GND
GND
N17
GND
N/A
GND
GND
E10
GND
N/A
GND
GND
P17
GND
N/A
GND
GND
H10
GND
N/A
GND
GND
R17
GND
N/A
GND
GND
AC10
GND
N/A
GND
GND
T17
GND
N/A
GND
GND
AF10
GND
N/A
GND
GND
U17
GND
N/A
GND
GND
AK10
GND
N/A
GND
GND
V17
GND
N/A
GND
GND
R12
GND
N/A
GND
GND
AC17
GND
N/A
GND
GND
T12
GND
N/A
GND
GND
AF17
GND
N/A
GND
GND
N13
GND
N/A
GND
GND
AK17
GND
N/A
GND
GND
P13
GND
N/A
GND
GND
N18
GND
N/A
GND
GND
R13
GND
N/A
GND
GND
P18
GND
N/A
GND
GND
T13
GND
N/A
GND
GND
R18
GND
N/A
GND
GND
U13
GND
N/A
GND
GND
T18
GND
N/A
GND
GND
V13
GND
N/A
GND
GND
U18
GND
N/A
GND
GND
A14
GND
N/A
GND
GND
V18
GND
N/A
GND
GND
E14
GND
N/A
GND
GND
R19
GND
N/A
GND
GND
H14
GND
N/A
GND
GND
T19
GND
N/A
GND
GND
N14
GND
N/A
GND
GND
A21
GND
N/A
GND
GND
P14
GND
N/A
GND
GND
E21
GND
N/A
GND
GND
R14
GND
N/A
GND
GND
H21
GND
N/A
GND
GND
T14
GND
N/A
GND
GND
AC21
GND
N/A
GND
GND
U14
GND
N/A
GND
GND
AF21
GND
N/A
GND
GND
V14
GND
N/A
GND
GND
AK21
GND
N/A
GND
GND
AC14
GND
N/A
GND
GND
K23
GND
N/A
GND
GND
AF14
GND
N/A
GND
GND
P23
GND
N/A
GND
GND
AK14
GND
N/A
GND
GND
U23
GND
N/A
GND
GND
M15
GND
N/A
GND
GND
AA23
GND
N/A
GND
GND
N15
GND
N/A
GND
GND
A25
GND
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
79
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 34: FG900 Package Pinout (Continued)
Bank
80
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
Table 34: FG900 Package Pinout (Continued)
FG900
Pin
Number
Type
Bank
XC3S2000
Pin Name
XC3S4000
XC3S5000
Pin Name
FG900
Pin
Number
Type
AE27
VCCAUX
N/A
GND
GND
AK25
GND
N/A
VCCAUX
VCCAUX
N/A
GND
GND
E26
GND
N/A
VCCINT
VCCINT
L11
VCCINT
N/A
GND
GND
K26
GND
N/A
VCCINT
VCCINT
R11
VCCINT
N/A
GND
GND
P26
GND
N/A
VCCINT
VCCINT
T11
VCCINT
N/A
GND
GND
U26
GND
N/A
VCCINT
VCCINT
Y11
VCCINT
N/A
GND
GND
AA26
GND
N/A
VCCINT
VCCINT
M12
VCCINT
N/A
GND
GND
AF26
GND
N/A
VCCINT
VCCINT
N12
VCCINT
N/A
GND
GND
A29
GND
N/A
VCCINT
VCCINT
P12
VCCINT
N/A
GND
GND
B29
GND
N/A
VCCINT
VCCINT
U12
VCCINT
N/A
GND
GND
AJ29
GND
N/A
VCCINT
VCCINT
V12
VCCINT
N/A
GND
GND
AK29
GND
N/A
VCCINT
VCCINT
W12
VCCINT
N/A
GND
GND
A30
GND
N/A
VCCINT
VCCINT
M13
VCCINT
N/A
GND
GND
B30
GND
N/A
VCCINT
VCCINT
W13
VCCINT
N/A
GND
GND
F30
GND
N/A
VCCINT
VCCINT
M14
VCCINT
N/A
GND
GND
K30
GND
N/A
VCCINT
VCCINT
W14
VCCINT
N/A
GND
GND
P30
GND
N/A
VCCINT
VCCINT
L15
VCCINT
N/A
GND
GND
U30
GND
N/A
VCCINT
VCCINT
Y15
VCCINT
N/A
GND
GND
AA30
GND
N/A
VCCINT
VCCINT
L16
VCCINT
N/A
GND
GND
AE30
GND
N/A
VCCINT
VCCINT
Y16
VCCINT
N/A
GND
GND
AJ30
GND
N/A
VCCINT
VCCINT
M17
VCCINT
N/A
GND
GND
AK30
GND
N/A
VCCINT
VCCINT
W17
VCCINT
N/A
GND
GND
AK2
GND
N/A
VCCINT
VCCINT
M18
VCCINT
N/A
VCCAUX
VCCAUX
F4
VCCAUX
N/A
VCCINT
VCCINT
W18
VCCINT
N/A
VCCAUX
VCCAUX
K4
VCCAUX
N/A
VCCINT
VCCINT
M19
VCCINT
N/A
VCCAUX
VCCAUX
P4
VCCAUX
N/A
VCCINT
VCCINT
N19
VCCINT
N/A
VCCAUX
VCCAUX
U4
VCCAUX
N/A
VCCINT
VCCINT
P19
VCCINT
N/A
VCCAUX
VCCAUX
AA4
VCCAUX
N/A
VCCINT
VCCINT
U19
VCCINT
N/A
VCCAUX
VCCAUX
AE4
VCCAUX
N/A
VCCINT
VCCINT
V19
VCCINT
N/A
VCCAUX
VCCAUX
D6
VCCAUX
N/A
VCCINT
VCCINT
W19
VCCINT
N/A
VCCAUX
VCCAUX
AG6
VCCAUX
N/A
VCCINT
VCCINT
L20
VCCINT
N/A
VCCAUX
VCCAUX
D10
VCCAUX
N/A
VCCINT
VCCINT
R20
VCCINT
N/A
VCCAUX
VCCAUX
AG10
VCCAUX
N/A
VCCINT
VCCINT
T20
VCCINT
N/A
VCCAUX
VCCAUX
D14
VCCAUX
N/A
VCCINT
VCCINT
Y20
VCCINT
N/A
VCCAUX
VCCAUX
AG14
VCCAUX
VCCAUX CCLK
CCLK
AH28
CONFIG
N/A
VCCAUX
VCCAUX
D17
VCCAUX
VCCAUX DONE
DONE
AJ28
CONFIG
N/A
VCCAUX
VCCAUX
AG17
VCCAUX
VCCAUX HSWAP_EN
HSWAP_EN
A3
CONFIG
N/A
VCCAUX
VCCAUX
D21
VCCAUX
VCCAUX M0
M0
AJ3
CONFIG
N/A
VCCAUX
VCCAUX
AG21
VCCAUX
VCCAUX M1
M1
AH3
CONFIG
N/A
VCCAUX
VCCAUX
D25
VCCAUX
VCCAUX M2
M2
AK3
CONFIG
N/A
VCCAUX
VCCAUX
AG25
VCCAUX
VCCAUX PROG_B
PROG_B
B3
CONFIG
N/A
VCCAUX
VCCAUX
F27
VCCAUX
VCCAUX TCK
TCK
B28
JTAG
N/A
VCCAUX
VCCAUX
K27
VCCAUX
VCCAUX TDI
TDI
C3
JTAG
N/A
VCCAUX
VCCAUX
P27
VCCAUX
VCCAUX TDO
TDO
C28
JTAG
N/A
VCCAUX
VCCAUX
U27
VCCAUX
VCCAUX TMS
TMS
A28
JTAG
N/A
VCCAUX
VCCAUX
AA27
VCCAUX
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1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
User I/Os by Bank
Table 35 indicates how the available user-I/O pins are distributed between the eight I/O banks for the XC3S2000 in
the FG900 package. Similarly, Table 36 shows how the
available user-I/O pins are distributed between the eight I/O
banks for the XC3S4000 and XC3S5000 in the FG900
package.
Table 35: User I/Os Per Bank for XC3S2000 in FG900 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
71
62
0
2
5
2
1
71
62
0
2
5
2
2
69
61
0
2
6
0
3
71
62
0
2
7
0
4
72
57
6
2
5
2
5
71
55
6
2
6
2
6
69
60
0
2
7
0
7
71
62
0
2
7
0
Table 36: User I/Os Per Bank for XC3S4000 and XC3S5000 in FG900 Package
Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
79
70
0
2
5
2
1
79
70
0
2
5
2
2
79
71
0
2
6
0
3
79
70
0
2
7
0
4
80
65
6
2
5
2
5
79
63
6
2
6
2
6
79
70
0
2
7
0
7
79
70
0
2
7
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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1-800-255-7778
81
R
Spartan-3 FPGA Family: Pinout Descriptions
FG900 Footprint
1
Left Half of Package
(top view)
XC3S2000
(565 max. user I/O)
I/O: Unrestricted,
481 general-purpose user I/O
Bank 7
XC3S4000, XC3S5000
(633 max user I/O)
I/O: Unrestricted,
549 general-purpose user I/O
0
N.C.: No unconnected pins
in this package
All devices
DUAL: Configuration pin,
12 then possible user I/O
8
7
4
JTAG: Dedicated JTAG port
pins
VCCO: Output voltage
80 supply for bank
VCCAUX: Auxiliary voltage
24 supply (+2.5V)
120
GND: Ground
Bank 6
VCCINT: Internal core
32 voltage supply (+1.2V)
I/O
I/O
I/O
L38P_0
L35P_0
L09P_0
‹
‹
11
12
13
14
15
GND
I/O
L32P_0
GCLK6
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L35N_0
L38N_0
PROG_B L01N_0
L32N_0
L09N_0
L12P_0 L17N_0 L22N_0 L25N_0 L28P_0
VRP_0 L02N_0 L04P_0
‹
‹
GCLK7
I/O
I/O
L01N_7 L01P_7
VRP_7 VRN_7
TDI
GND
GND
I/O
I/O
I/O
L17P_0 L22P_0 L25P_0
I/O
IO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_0
VCCO_0
VCCO_0
L31P_0
VREF_0
L04N_0 L06P_0 L08P_0
L12N_0 L16P_0 L21P_0
L28N_0 VREF_0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L37P_0 VCCAUX
VCCAUX
L03N_7
L06N_0 L08N_0
L16N_0 L21N_0
‹
VREF_7 L03P_7 L02N_7 L02P_7 L03N_0
I/O
I/O
I/O
VCCO_7
L04N_7 L04P_7
L05P_7
GND
I/O
I/O
I/O
L37N_0
VCCO_0
L03P_0
L07P_0
‹
GND
I/O
I/O
I/O
I/O
L15P_0 L20P_0 L24P_0
VCCAUX
I/O
L31N_0
GND
I/O
I/O
IO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L05P_0
VCCAUX
L06N_7 L06P_7
L05N_7 L05N_0 VREF_0 L07N_0 VREF_0 L11P_0 L15N_0 L20N_0 L24N_0 L27P_0 L30P_0
GND
G
I/O
I/O
I/O
I/O
I/O
I/O
L36N_0
VCCO_7
L08N_7 L08P_7 L07N_7 L07P_7
L09P_7
‹
H
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L36P_0
L10P_7
L10P_0
L13N_7 L13P_7 L11N_7 L11P_7 L10N_7 VREF_7 L09N_7
‹
J
I/O
I/O
I/O
I/O
VCCO_7
L14N_7 L14P_7
L15N_7 L15P_7
I/O
I/O
VCCAUX
L19N_7
VREF_7 L19P_7
GND
GND
I/O
I/O
VCCO_0
I/O
I/O
I/O
I/O
I/O
VCCO_0
L11N_0 L14P_0 L19P_0
L27N_0 L30N_0
GND
I/O
I/O
I/O
L14N_0 L19N_0 L23P_0
GND
I/O
L29P_0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_0
VCCO_7 L16P_7
L26P_0
L18P_0 L23N_0 VREF_0 L29N_0
VREF_7 L10N_0 L13N_0
I/O
I/O
L17N_7 L17P_7
GND
I/O
I/O
I/O
I/O
L16N_7 L20P_7 L13P_0 L18N_0
I/O
L26N_0
I/O
I/O
L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_7
VCCINT VCCO_0 VCCO_0 VCCO_0 VCCINT
L20N_7
L24N_7 L24P_7 L23N_7 L23P_7 L22N_7 L22P_7 L21N_7 L21P_7
M
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L49P_7 L25N_7 L25P_7 L46N_7 L46P_7
VCCO_7 VCCINT VCCINT VCCINT
L27P_7
L28P_7
L27N_7 VREF_7 L26N_7 L26P_7
‹
‹
‹
‹
‹
GND
N
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_7 L50N_7 L50P_7 L49N_7 VCCO_7
VCCO_7 VCCINT
L31N_7 L31P_7
L29N_7 L29P_7 L28N_7
‹
‹
‹
I/O
I/O
VCCAUX
L34N_7 L34P_7
GND
GND
I/O
I/O
L33N_7 L33P_7
GND
I/O
I/O
VCCO_7 VCCINT
L32N_7 L32P_7
GND
GND
GND
GND
GND
GND
R
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCINT
L37P_7
L40N_7
VREF_7 L40P_7 L39N_7 L39P_7 L38N_7 L38P_7 L37N_7 VREF_7 L35N_7 L35P_7
GND
GND
GND
GND
T
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L52P_6 L52N_6
VCCINT
L40P_6
L37P_6 L37N_6
VREF_6 L40N_6 L39P_6 L39N_6 L38P_6 L38N_6
‹
‹
GND
GND
GND
GND
I/O
I/O
L34N_6 VCCO_6 VCCINT
L34P_6 VREF_6
GND
GND
GND
V
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_6
VCCO_6 L30P_6 L30N_6
VCCO_6 VCCINT
L33P_6 L33N_6
L32P_6 L32N_6 L31P_6
L29P_6
‹
‹
GND
GND
GND
W
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L25P_6 L25N_6
VCCO_6 VCCINT VCCINT VCCINT
L29N_6
L28P_6 L28N_6 L27P_6 L27N_6 L31N_6 L26P_6 L26N_6
‹
‹
Y
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_6
VCCINT VCCO_5 VCCO_5 VCCO_5 VCCINT
L24N_6 L45P_6 L45N_6
L20P_6
L24P_6 VREF_6
L22P_6 L22N_6 L21P_6 L21N_6
‹
‹
U
CONFIG: Dedicated
configuration pins
Bank 0
9
10
GND
DCI: User I/O or reference
16 resistor input for bank
8
GND
P
GCLK: User I/O or global
clock buffer input
7
B
K
VREF: User I/O or input
48 voltage reference for bank
6
I/O
HSWAP_
I/O
L01P_0
EN
VRN_0 L02P_0
F
N.C.: Unconnected pins for
5
GND
E
68 XC3S2000 (‹)
4
GND
D
VREF: User I/O or input
3
A
C
48 voltage reference for bank
2
A
A
A
B
I/O
I/O
L36P_6 L36N_6 VCCAUX
‹
‹
GND
I/O
I/O
VCCAUX
L19P_6 L19N_6
GND
A
E
GND
I/O
I/O
I/O
I/O
VCCO_6
L15P_6 L15N_6
L14P_6 L14N_6
I/O
A L13P_6
C VREF_6
A
D
GND
I/O
I/O
L35P_6 L35N_6
I/O
I/O
L17P_6
VREF_6 L17N_6
I/O
VCCO_6
GND
GND
I/O
I/O
L16P_6 L20N_6
I/O
I/O
L16N_6 L08P_5
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L36P_5
L08N_5
L13N_6 L11P_6 L11N_6 L10P_6 L10N_6 L09P_6
‹
I/O
GND
I/O
VCCO_5
I/O
I/O
I/O
L22P_5 L22N_5 L26P_5
GND
I/O
I/O
I/O
I/O
I/O
L29P_5
L17N_5 L23P_5 L26N_5 VREF_5
I/O
I/O
I/O
L17P_5 L18P_5 L23N_5
GND
I/O
L29N_5
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L36N_5 VCCO_5
VCCO_6 L09N_6
VCCO_5
L08P_6 L08N_6 L07P_6 L07N_6
L13P_5 L13N_5 L18N_5
L30P_5 L30N_5
VREF_6 L05P_5
‹
GND
I/O
I/O
VCCAUX I/O
L06P_6 L06N_6
L05P_6
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L37P_5
L27N_5
L19P_5
L11N_5
L11P_5 VREF_5 L14P_5 VREF_5 L27P_5 VREF_5
L05N_5
‹
I/O
I/O
I/O
VCCO_5 L37N_5
L03N_5
L09P_5
‹
I/O
A
F
I/O
I/O
I/O
VCCO_6
L04P_6 L04N_6
L05N_6
A
G
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L38P_5
VCCAUX L31N_5
L03N_6
L09N_5 VCCAUX L15P_5 L20P_5 L24N_5
L03P_6 VREF_6 L02P_6 L02N_6 L03P_5 VCCAUX L06P_5
D4
‹
A
H
I/O
I/O
L01P_6 L01N_6
VRN_6 VRP_6
GND
GND
I/O
I/O
I/O
L14N_5 L19N_5 L24P_5
GND
I/O
L31P_5
D5
M1
I/O
I/O
I/O
IO
I/O
I/O
I/O
I/O
I/O
L38N_5 VCCO_5
VCCO_5
VCCO_5 L28P_5 L32P_5
VREF_5
L04P_5 L06N_5
L12P_5 L15N_5 L20N_5
‹
D7
GCLK2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L35P_5
L28N_5 L32N_5
L10P_5
L01P_5
L07P_5 VRN_5 L12N_5 L16P_5 L21P_5 L25P_5
D6
CS_B L02P_5 L04N_5
‹
GCLK3
A
J
GND
GND
M0
A
K
GND
GND
M2
I/O
I/O
L01N_5
RDWR_B L02N_5
GND
I/O
I/O
I/O
L35N_5
L10N_5
L07N_5 VRP_5
‹
GND
Bank 5
I/O
I/O
I/O
L16N_5 L21N_5 L25N_5
GND
IO
VREF_5
DS099-4_13a_121103
Figure 15: FG900 Package Footprint (top view)
82
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
28
29
30
TMS
GND
GND
A
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L39P_1
L32N_1
L17N_1
L01P_1
L28N_1
L26P_1 L21P_1 VREF_1 L15P_1 L11P_1 L07P_1 L04N_1 L03P_1 VRN_1
‹
GCLK5
TCK
GND
GND
B
19
20
I/O
I/O
I/O
L39N_1
L26N_1 L21N_1
‹
GND
23
24
I/O
I/O
I/O
L15N_1 L11N_1 L07N_1
25
GND
26
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_1
VCCO_1 L10N_1 L06N_1
L32P_1
VCCO_1
L25N_1 L20N_1 L17P_1
GCLK4 L28P_1
VREF_1 VREF_1 L04P_1
27
I/O
I/O
L01N_2 L01P_2
VRP_2 VRN_2
C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L31N_1 VCCAUX L38N_1
L03N_2
L25P_1 L20P_1 VCCAUX L14N_1 L10P_1 L06P_1 VCCAUX L02N_1 L02N_2 L02P_2 VREF_2 L03P_2
VREF_1
‹
D
I/O
L31P_1
I/O
GND
I/O
L27N_1
I/O
I/O
I/O
L38P_1
L24N_1 L19N_1
‹
I/O
GND
I/O
I/O
VCCO_1
L14P_1 L13P_1
I/O
GND
I/O
L02P_1
TDO
I/O
I/O
I/O
L41N_2 VCCO_2
L04N_2 L04P_2
‹
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L41P_2 VCCAUX
L24P_1 L19P_1 L16N_1 L13N_1 L09N_1 L05N_1 L05P_1
L05N_2 L05P_2
‹
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCO_1
VCCO_2
VCCO_1
L30N_1 L27P_1
L23N_1 L18N_1 L16P_1
L09P_1 L08P_1 L08N_2
L06N_2 L06P_2 L07N_2 L07P_2
I/O
L30P_1
GND
I/O
I/O
I/O
L37N_1
L23P_1 L18P_1
‹
I/O
IO
I/O
I/O
L37P_1
VCCO_1
L22N_1
L29N_1 VREF_1
‹
I/O
I/O
I/O
I/O
L40N_1 L40P_1
L22P_1
L29P_1
‹
‹
I/O
GND
I/O
E
F
G
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L09N_2
L12N_1 L08N_1 L08P_2 VREF_2 L09P_2 L10N_2 L10P_2 L12N_2 L12P_2
H
I/O
I/O
I/O
I/O
L13P_2
L13N_2 VREF_2 VCCO_2 L14N_2 L14P_2
J
I/O
I/O
VCCAUX L45N_2 L45P_2
‹
‹
K
I/O
I/O
L12P_1 L15N_2 VCCO_2
I/O
I/O
L46N_2
L15P_2
‹
GND
I/O
I/O
I/O
L16N_2 L16P_2
GND
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCINT VCCO_1 VCCO_1 VCCO_1 VCCINT L46P_2 VCCO_2 L47N_2 L47P_2
L19N_2 L19P_2 L20N_2 L20P_2 L21N_2 L21P_2
‹
‹
‹
L
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L50N_2 L50P_2
VCCINT VCCINT VCCINT VCCO_2
L23N_2
L26N_2 L22N_2 L22P_2 VREF_2 L23P_2 L28N_2 L24N_2 L24P_2
‹
‹
M
N
GND
GND
GND
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCINT VCCO_2
L26P_2 L27N_2 L27P_2 VCCO_2 L28P_2 L29N_2 L29P_2 VCCO_2 L31N_2 L31P_2
GND
GND
GND
VCCINT VCCO_2
GND
GND
GND
GND
VCCINT
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L40P_2
L35N_2 L35P_2 L37N_2 L37P_2 L38N_2 L38P_2 L39N_2 L39P_2 L40N_2 VREF_2
R
GND
GND
GND
GND
VCCINT
I/O
I/O
I/O
I/O
I/O
I/O
L35P_3 L35N_3 L37P_3 L37N_3 L38P_3 L38N_3
I/O
I/O
I/O
I/O
L40N_3
L39P_3 L39N_3 L40P_3 VREF_3
T
GND
GND
GND
GND
GND
I/O
I/O
VCCINT VCCO_3
L32P_3 L32N_3
GND
GND
I/O
I/O
L33N_2 L33P_2
I/O
I/O
L33P_3 L33N_3
GND
GND
I/O
I/O
VCCAUX L34N_2 L34P_2
VREF_2
I/O
I/O
VCCAUX L34P_3
VREF_3 L34N_3
GND
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L50P_3 L50N_3 VCCO_3
VCCO_3
L31P_3 L31N_3
L27N_3 L28P_3 L28N_3
L29N_3
‹
‹
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L48P_3 L48N_3
L46P_3 L46N_3 L47P_3 L47N_3
VCCINT VCCINT VCCINT VCCO_3
L26P_3 L26N_3
L29P_3
L27P_3
‹
‹
‹
‹
‹
‹
GND
GND
VCCINT VCCO_3
VCCINT VCCO_4 VCCO_4 VCCO_4 VCCINT
I/O
I/O
I/O
L32N_2 L32P_2
I/O
L26N_4
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L23P_3
L20N_3 VCCO_3 L21P_3 L21N_3 L22P_3 L22N_3 VREF_3 L23N_3 L24P_3 L24N_3
I/O
I/O
I/O
I/O
L18N_4 L13P_4 L20P_3 L16N_3
GND
I/O
I/O
L17P_3
VREF_3 L17N_3
GND
VCCAUX
I/O
I/O
L19P_3 L19N_3
GND
P
U
V
W
Y
A
A
I/O
I/O
I/O
I/O
I/O
VCCO_4
L26P_4
L13N_4
L29N_4 VREF_4 L23N_4 L18P_4
I/O
I/O
L08N_4 L16P_3 VCCO_3
I/O
I/O
I/O
L14N_3 VCCO_3 L15P_3 L15N_3
A
B
I/O
L29P_4
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L13N_3
L08P_4 L04P_4 L09N_3 L10P_3 L10N_3 L11P_3 L11N_3 L13P_3 VREF_3
A
C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L09P_3
L30N_4 L27N_4 VCCO_4
L04N_4 VREF_3 VCCO_3 L07P_3 L07N_3 L08P_3 L08N_3
L19P_4 L14P_4 L11N_4 VCCO_4
DIN
D2
D0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L34P_4 L34N_4
GND
I/O
VCCAUX
L30P_4 L27P_4
L05N_3
L06P_3 L06N_3
L05N_4
L24N_4 L20N_4 L15N_4 L11P_4
D3
D1
‹
‹
A
D
I/O
VREF_4
GND
GND
I/O
L31N_4 VCCAUX
INIT_B
I/O
I/O
I/O
L23P_4 L19N_4 L14N_4
I/O
I/O
I/O
L24P_4 L20P_4 L15P_4
I/O
GND
GND
I/O
I/O
I/O
I/O
L09N_4 L05P_4 VCCO_4 L03P_4
I/O
L14P_3
GND
I/O
I/O
I/O
I/O
I/O
I/O
VCCAUX
L06N_4 L35N_4 VCCAUX
L03N_4
L21N_4 L16N_4
L09P_4 VREF_4
‹
I/O
L32P_4
GCLK0
GND
I/O
I/O
I/O
L25P_4 L22P_4 L17P_4
GND
I/O
I/O
I/O
L38P_4
L10P_4 L07P_4
‹
Bank 4
DS099-4 (v1.5) July 13, 2004
Product Specification
GND
A
E
I/O
I/O
I/O
VCCO_3
L05P_3
L04P_3 L04N_3
A
F
I/O
I/O
I/O
I/O
L02N_3
L02P_3 VREF_3 L03P_3 L03N_3
A
G
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L31P_4
L35P_4 L33N_4 VCCO_4
I/O
DOUT L28N_4 VCCO_4 L21P_4 L16P_4 L12N_4 VCCO_4 L06P_4
‹
‹
BUSY
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
L38N_4 L33P_4
L01N_4
L32N_4
L22N_4
L02N_4 VRP_4
L28P_4 L25N_4 VREF_4 L17N_4 L12P_4 L10N_4 L07N_4
‹
‹
GCLK1
CCLK
DONE
I/O
IO
I/O
L01P_4
L02P_4 VRN_4 VREF_4
I/O
I/O
L01P_3 L01N_3
VRN_3 VRP_3
Right Half of Package
(top view)
Bank 2
GND
18
Bank 1
21
22
I/O
I/O
L01N_1
L03N_1 VRP_1
I/O
17
Bank 3
16
Spartan-3 FPGA Family: Pinout Descriptions
A
H
GND
GND
A
J
GND
GND
A
K
DS099-4_13b_121103
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1-800-255-7778
83
R
Spartan-3 FPGA Family: Pinout Descriptions
FG1156: 1156-lead Fine-pitch Ball Grid
Array
The 1,156-lead fine-pitch ball grid array package, FG1156,
supports two different Spartan-3 devices, namely the
XC3S4000, and the XC3S5000. The XC3S2000, however,
has fewer I/O pins, which consequently results in 73 unconnected pins on the FG1156 package, labeled as “N.C.” In
Table 37 and Figure 16, these unconnected pins are indicated with a black diamond symbol (‹).
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
I/O
0
IO
IO
L16
0
IO
IO
L17
I/O
0
IO/VREF_0
IO/VREF_0
D5
VREF
0
IO/VREF_0
IO/VREF_0
E10
VREF
0
IO/VREF_0
IO/VREF_0
J14
VREF
0
IO/VREF_0
IO/VREF_0
L15
VREF
All the package pins appear in Table 37 and are sorted by
bank number, then by pin name. Pairs of pins that form a differential I/O pair appear together in the table. The table also
shows the pin number for each pin and the pin type, as
defined earlier.
0
IO_L01N_0/
VRP_0
IO_L01N_0/
VRP_0
B3
DCI
0
IO_L01P_0/
VRN_0
IO_L01P_0/
VRN_0
A3
DCI
0
IO_L02N_0
IO_L02N_0
B4
I/O
If there is a difference between the XC3S2000 and
XC3S5000 pinouts, then that difference is highlighted in
Table 37. If the table entry is shaded grey, then there is an
unconnected pin on the XC3S2000 that maps to a user-I/O
pin on the XC3S4000 and XC3S5000. If the table entry is
shaded tan, which only occurs on ball L29 in I/O Bank 2,
then the unconnected pin on XC3S4000 maps to a
VREF-type pin on the XC3S5000. If the other VREF_2 pins
all connect to a voltage reference to support a special I/O
standard, then also connect the N.C. pin on the XC3S4000
to the same VREF_2 voltage. This provides maximum flexibility as you could potentially migrate a design from the
XC3S4000 to the XC3S5000 FPGA without changing the
printed circuit board.
0
IO_L02P_0
IO_L02P_0
A4
I/O
0
IO_L03N_0
IO_L03N_0
C5
I/O
0
IO_L03P_0
IO_L03P_0
B5
I/O
0
IO_L04N_0
IO_L04N_0
D6
I/O
0
IO_L04P_0
IO_L04P_0
C6
I/O
0
IO_L05N_0
IO_L05N_0
B6
I/O
0
IO_L05P_0/
VREF_0
IO_L05P_0/
VREF_0
A6
VREF
0
IO_L06N_0
IO_L06N_0
F7
I/O
0
IO_L06P_0
IO_L06P_0
E7
I/O
0
IO_L07N_0
IO_L07N_0
G9
I/O
0
IO_L07P_0
IO_L07P_0
F9
I/O
Pinout Table
0
IO_L08N_0
IO_L08N_0
D9
I/O
Table 37: FG1156 Package Pinout
0
IO_L08P_0
IO_L08P_0
C9
I/O
0
IO_L09N_0
IO_L09N_0
J10
I/O
0
IO_L09P_0
IO_L09P_0
H10
I/O
The XC3S5000 has a single unconnected package pin, ball
AK31, which is also unconnected for the XC3S4000.
Bank
84
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
0
IO_L10N_0
IO_L10N_0
G10
I/O
0
IO
IO
B9
I/O
0
IO_L10P_0
IO_L10P_0
F10
I/O
0
IO
IO
E17
I/O
0
IO_L11N_0
IO_L11N_0
L12
I/O
0
IO
IO
F6
I/O
0
IO_L11P_0
IO_L11P_0
K12
I/O
0
IO
IO
F8
I/O
0
IO_L12N_0
IO_L12N_0
J12
I/O
0
IO
IO
G12
I/O
0
IO_L12P_0
IO_L12P_0
H12
I/O
0
IO
IO
H8
I/O
0
IO_L13N_0
IO_L13N_0
F12
I/O
0
IO
IO
H9
I/O
0
IO_L13P_0
IO_L13P_0
E12
I/O
0
IO
IO
J11
I/O
0
IO_L14N_0
IO_L14N_0
D12
I/O
0
N.C. (‹)
IO
J9
I/O
0
IO_L14P_0
IO_L14P_0
C12
I/O
0
N.C. (‹)
IO
K11
I/O
0
IO_L15N_0
IO_L15N_0
B12
I/O
0
IO
IO
K13
I/O
0
IO_L15P_0
IO_L15P_0
A12
I/O
0
IO
IO
K16
I/O
0
IO_L16N_0
IO_L16N_0
H13
I/O
0
IO
IO
K17
I/O
0
IO_L16P_0
IO_L16P_0
G13
I/O
0
IO
IO
L13
I/O
0
IO_L17N_0
IO_L17N_0
D13
I/O
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1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
C13
I/O
0
IO_L36P_0
XC3S4000
Pin Name
FG1156
Pin
Number
Type
IO_L36P_0
A8
I/O
XC3S5000
Pin Name
0
IO_L17P_0
IO_L17P_0
0
IO_L18N_0
IO_L18N_0
L14
I/O
0
IO_L37N_0
IO_L37N_0
D10
I/O
0
IO_L18P_0
IO_L18P_0
K14
I/O
0
IO_L37P_0
IO_L37P_0
C10
I/O
0
IO_L19N_0
IO_L19N_0
H14
I/O
0
IO_L38N_0
IO_L38N_0
B10
I/O
0
IO_L19P_0
IO_L19P_0
G14
I/O
0
IO_L38P_0
IO_L38P_0
A10
I/O
0
IO_L20N_0
IO_L20N_0
F14
I/O
0
N.C. (‹)
IO_L39N_0
G11
I/O
0
IO_L20P_0
IO_L20P_0
E14
I/O
0
N.C. (‹)
IO_L39P_0
F11
I/O
0
IO_L21N_0
IO_L21N_0
D14
I/O
0
N.C. (‹)
IO_L40N_0
B11
I/O
0
IO_L21P_0
IO_L21P_0
C14
I/O
0
N.C. (‹)
IO_L40P_0
A11
I/O
0
IO_L22N_0
IO_L22N_0
B14
I/O
0
VCCO_0
VCCO_0
B13
VCCO
0
IO_L22P_0
IO_L22P_0
A14
I/O
0
VCCO_0
VCCO_0
C4
VCCO
0
IO_L23N_0
IO_L23N_0
K15
I/O
0
VCCO_0
VCCO_0
C8
VCCO
0
IO_L23P_0
IO_L23P_0
J15
I/O
0
VCCO_0
VCCO_0
D11
VCCO
0
IO_L24N_0
IO_L24N_0
G15
I/O
0
VCCO_0
VCCO_0
D16
VCCO
0
IO_L24P_0
IO_L24P_0
F15
I/O
0
VCCO_0
VCCO_0
F13
VCCO
0
IO_L25N_0
IO_L25N_0
D15
I/O
0
VCCO_0
VCCO_0
G8
VCCO
0
IO_L25P_0
IO_L25P_0
C15
I/O
0
VCCO_0
VCCO_0
H11
VCCO
0
IO_L26N_0
IO_L26N_0
B15
I/O
0
VCCO_0
VCCO_0
H15
VCCO
0
IO_L26P_0/
VREF_0
IO_L26P_0/
VREF_0
A15
VREF
0
VCCO_0
VCCO_0
M13
VCCO
0
VCCO_0
VCCO_0
M14
VCCO
0
IO_L27N_0
IO_L27N_0
G16
I/O
0
VCCO_0
VCCO_0
M15
VCCO
0
IO_L27P_0
IO_L27P_0
F16
I/O
0
VCCO_0
VCCO_0
M16
VCCO
0
IO_L28N_0
IO_L28N_0
C16
I/O
1
IO
IO
B26
I/O
0
IO_L28P_0
IO_L28P_0
B16
I/O
1
IO
IO
A18
I/O
0
IO_L29N_0
IO_L29N_0
J17
I/O
1
IO
IO
C23
I/O
0
IO_L29P_0
IO_L29P_0
H17
I/O
1
IO
IO
E21
I/O
0
IO_L30N_0
IO_L30N_0
G17
I/O
1
IO
IO
E25
I/O
0
IO_L30P_0
IO_L30P_0
F17
I/O
1
IO
IO
F18
I/O
0
IO_L31N_0
IO_L31N_0
D17
I/O
1
IO
IO
F27
I/O
0
IO_L31P_0/
VREF_0
IO_L31P_0/
VREF_0
C17
VREF
1
IO
IO
F29
I/O
0
IO_L32N_0/
GCLK7
IO_L32N_0/
GCLK7
B17
GCLK
1
IO
IO
H23
I/O
1
IO
IO
H26
I/O
1
N.C. (‹)
IO
J26
I/O
1
IO
IO
K19
I/O
0
IO_L32P_0/
GCLK6
IO_L32P_0/
GCLK6
A17
0
N.C. (‹)
IO_L33N_0
D7
I/O
1
IO
IO
L19
I/O
0
N.C. (‹)
IO_L33P_0
C7
I/O
1
IO
IO
L20
I/O
0
N.C. (‹)
IO_L34N_0
B7
I/O
1
IO
IO
L21
I/O
0
N.C. (‹)
IO_L34P_0
A7
I/O
1
N.C. (‹)
IO
L23
I/O
0
IO_L35N_0
IO_L35N_0
E8
I/O
1
IO
IO
L24
I/O
0
IO_L35P_0
IO_L35P_0
D8
I/O
1
IO/VREF_1
IO/VREF_1
D30
VREF
0
IO_L36N_0
IO_L36N_0
B8
I/O
1
IO/VREF_1
IO/VREF_1
K21
VREF
DS099-4 (v1.5) July 13, 2004
Product Specification
GCLK
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R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S5000
Pin Name
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
1
IO/VREF_1
IO/VREF_1
L18
VREF
1
IO_L19N_1
IO_L19N_1
A23
I/O
1
IO_L01N_1/
VRP_1
IO_L01N_1/
VRP_1
A32
DCI
1
IO_L19P_1
IO_L19P_1
B23
I/O
1
IO_L20N_1
IO_L20N_1
K22
I/O
1
IO_L01P_1/
VRN_1
IO_L01P_1/
VRN_1
B32
DCI
1
IO_L20P_1
IO_L20P_1
L22
I/O
1
IO_L02N_1
IO_L02N_1
A31
I/O
1
IO_L21N_1
IO_L21N_1
G22
I/O
1
IO_L02P_1
IO_L02P_1
B31
I/O
1
IO_L21P_1
IO_L21P_1
H22
I/O
1
IO_L03N_1
IO_L03N_1
B30
I/O
1
IO_L22N_1
IO_L22N_1
C22
I/O
1
IO_L22P_1
IO_L22P_1
D22
I/O
1
IO_L23N_1
IO_L23N_1
H21
I/O
1
IO_L23P_1
IO_L23P_1
J21
I/O
1
IO_L24N_1
IO_L24N_1
F21
I/O
1
IO_L24P_1
IO_L24P_1
G21
I/O
1
IO_L25N_1
IO_L25N_1
C21
I/O
1
IO_L25P_1
IO_L25P_1
D21
I/O
1
IO_L03P_1
IO_L03P_1
C30
I/O
1
IO_L04N_1
IO_L04N_1
C29
I/O
1
IO_L04P_1
IO_L04P_1
D29
I/O
1
IO_L05N_1
IO_L05N_1
A29
I/O
1
IO_L05P_1
IO_L05P_1
B29
I/O
1
86
XC3S4000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
IO_L06N_1/
VREF_1
IO_L06N_1/
VREF_1
E28
VREF
1
IO_L06P_1
IO_L06P_1
F28
I/O
1
IO_L26N_1
IO_L26N_1
A21
I/O
1
IO_L07N_1
IO_L07N_1
D27
I/O
1
IO_L26P_1
IO_L26P_1
B21
I/O
1
IO_L07P_1
IO_L07P_1
E27
I/O
1
IO_L27N_1
IO_L27N_1
F19
I/O
IO_L27P_1
IO_L27P_1
G19
I/O
1
IO_L08N_1
IO_L08N_1
A27
I/O
1
1
IO_L08P_1
IO_L08P_1
B27
I/O
1
IO_L28N_1
IO_L28N_1
B19
I/O
1
IO_L09N_1
IO_L09N_1
F26
I/O
1
IO_L28P_1
IO_L28P_1
C19
I/O
1
IO_L09P_1
IO_L09P_1
G26
I/O
1
IO_L29N_1
IO_L29N_1
J18
I/O
1
IO_L10N_1/
VREF_1
IO_L10N_1/
VREF_1
C26
VREF
1
IO_L29P_1
IO_L29P_1
K18
I/O
1
IO_L30N_1
IO_L30N_1
G18
I/O
1
IO_L10P_1
IO_L10P_1
D26
I/O
1
IO_L30P_1
IO_L30P_1
H18
I/O
1
IO_L11N_1
IO_L11N_1
H25
I/O
1
IO_L11P_1
J25
I/O
IO_L31N_1/
VREF_1
VREF
IO_L11P_1
IO_L31N_1/
VREF_1
D18
1
1
IO_L12N_1
IO_L12N_1
F25
I/O
1
IO_L31P_1
IO_L31P_1
E18
I/O
1
IO_L32N_1/
GCLK5
IO_L32N_1/
GCLK5
B18
GCLK
1
IO_L32P_1/
GCLK4
IO_L32P_1/
GCLK4
C18
GCLK
1
IO_L12P_1
IO_L12P_1
G25
I/O
1
IO_L13N_1
IO_L13N_1
C25
I/O
1
IO_L13P_1
IO_L13P_1
D25
I/O
1
IO_L14N_1
IO_L14N_1
A25
I/O
1
N.C. (‹)
IO_L33N_1
C28
I/O
1
IO_L14P_1
IO_L14P_1
B25
I/O
1
N.C. (‹)
IO_L33P_1
D28
I/O
1
IO_L15N_1
IO_L15N_1
A24
I/O
1
N.C. (‹)
IO_L34N_1
A28
I/O
1
IO_L15P_1
IO_L15P_1
B24
I/O
1
N.C. (‹)
IO_L34P_1
B28
I/O
1
IO_L16N_1
IO_L16N_1
J23
I/O
1
N.C. (‹)
IO_L35N_1
J24
I/O
1
IO_L16P_1
IO_L16P_1
K23
I/O
1
N.C. (‹)
IO_L35P_1
K24
I/O
1
IO_L17N_1/
VREF_1
IO_L17N_1/
VREF_1
F23
VREF
1
N.C. (‹)
IO_L36N_1
F24
I/O
1
IO_L17P_1
IO_L17P_1
G23
I/O
1
N.C. (‹)
IO_L36P_1
G24
I/O
1
IO_L18N_1
IO_L18N_1
D23
I/O
1
IO_L37N_1
IO_L37N_1
J20
I/O
1
IO_L18P_1
IO_L18P_1
E23
I/O
1
IO_L37P_1
IO_L37P_1
K20
I/O
1
IO_L38N_1
IO_L38N_1
F20
I/O
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
2
IO_L09N_2/
VREF_2
XC3S4000
Pin Name
FG1156
Pin
Number
Type
IO_L09N_2/
VREF_2
H31
VREF
XC3S5000
Pin Name
1
IO_L38P_1
IO_L38P_1
G20
I/O
1
IO_L39N_1
IO_L39N_1
C20
I/O
1
IO_L39P_1
IO_L39P_1
D20
I/O
2
IO_L09P_2
IO_L09P_2
J31
I/O
1
IO_L40N_1
IO_L40N_1
A20
I/O
2
IO_L10N_2
IO_L10N_2
J32
I/O
1
IO_L40P_1
IO_L40P_1
B20
I/O
2
IO_L10P_2
IO_L10P_2
J33
I/O
1
VCCO_1
VCCO_1
B22
VCCO
2
IO_L11N_2
IO_L11N_2
J27
I/O
1
VCCO_1
VCCO_1
C27
VCCO
2
IO_L11P_2
IO_L11P_2
K26
I/O
IO_L12N_2
IO_L12N_2
K27
I/O
1
VCCO_1
VCCO_1
C31
VCCO
2
1
VCCO_1
VCCO_1
D19
VCCO
2
IO_L12P_2
IO_L12P_2
K28
I/O
1
VCCO_1
VCCO_1
D24
VCCO
2
IO_L13N_2
IO_L13N_2
K29
I/O
1
VCCO_1
VCCO_1
F22
VCCO
2
IO_L13P_2/
VREF_2
IO_L13P_2/
VREF_2
K30
VREF
1
VCCO_1
VCCO_1
G27
VCCO
2
IO_L14N_2
IO_L14N_2
K31
I/O
1
VCCO_1
VCCO_1
H20
VCCO
2
IO_L14P_2
IO_L14P_2
K32
I/O
1
VCCO_1
VCCO_1
H24
VCCO
2
IO_L15N_2
IO_L15N_2
K33
I/O
1
VCCO_1
VCCO_1
M19
VCCO
2
IO_L15P_2
IO_L15P_2
K34
I/O
1
VCCO_1
VCCO_1
M20
VCCO
2
IO_L16N_2
IO_L16N_2
L25
I/O
1
VCCO_1
VCCO_1
M21
VCCO
2
IO_L16P_2
IO_L16P_2
L26
I/O
1
VCCO_1
VCCO_1
M22
VCCO
2
N.C. (‹)
IO_L17N_2
L28
I/O
2
IO
IO
G33
I/O
2
N.C. (‹)
VREF
IO
IO
G34
I/O
IO_L17P_2/
VREF_2
L29
2
2
IO
IO
U25
I/O
2
IO_L19N_2
IO_L19N_2
M29
I/O
2
IO
IO
U26
I/O
2
IO_L19P_2
IO_L19P_2
M30
I/O
2
IO_L01N_2/
VRP_2
IO_L01N_2/
VRP_2
C33
DCI
2
IO_L20N_2
IO_L20N_2
M31
I/O
2
IO_L20P_2
IO_L20P_2
M32
I/O
2
IO_L01P_2/
VRN_2
IO_L01P_2/
VRN_2
C34
DCI
2
IO_L21N_2
IO_L21N_2
M26
I/O
IO_L21P_2
IO_L21P_2
N25
I/O
2
IO_L02N_2
IO_L02N_2
D33
I/O
2
2
IO_L02P_2
IO_L02P_2
D34
I/O
2
IO_L22N_2
IO_L22N_2
N27
I/O
2
IO_L03N_2/
VREF_2
IO_L03N_2/
VREF_2
E32
VREF
2
IO_L22P_2
IO_L22P_2
N28
I/O
2
VREF
IO_L03P_2
IO_L03P_2
E33
I/O
IO_L23N_2/
VREF_2
N31
2
IO_L23N_2/
VREF_2
2
IO_L04N_2
IO_L04N_2
F31
I/O
2
IO_L23P_2
IO_L23P_2
N32
I/O
2
IO_L04P_2
IO_L04P_2
F32
I/O
2
IO_L24N_2
IO_L24N_2
N24
I/O
2
IO_L05N_2
IO_L05N_2
G29
I/O
2
IO_L24P_2
IO_L24P_2
P24
I/O
2
IO_L05P_2
IO_L05P_2
G30
I/O
2
IO_L26N_2
IO_L26N_2
P29
I/O
2
IO_L06N_2
IO_L06N_2
H29
I/O
2
IO_L26P_2
IO_L26P_2
P30
I/O
IO_L27N_2
IO_L27N_2
P31
I/O
2
IO_L06P_2
IO_L06P_2
H30
I/O
2
2
IO_L07N_2
IO_L07N_2
H33
I/O
2
IO_L27P_2
IO_L27P_2
P32
I/O
2
IO_L07P_2
IO_L07P_2
H34
I/O
2
IO_L28N_2
IO_L28N_2
P33
I/O
2
IO_L08N_2
IO_L08N_2
J28
I/O
2
IO_L28P_2
IO_L28P_2
P34
I/O
2
IO_L08P_2
IO_L08P_2
J29
I/O
2
IO_L29N_2
IO_L29N_2
R24
I/O
2
IO_L29P_2
IO_L29P_2
R25
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
87
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
88
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
2
IO_L30N_2
IO_L30N_2
R28
I/O
2
VCCO_2
VCCO_2
H32
VCCO
2
IO_L30P_2
IO_L30P_2
R29
I/O
2
VCCO_2
VCCO_2
L27
VCCO
2
IO_L31N_2
IO_L31N_2
R31
I/O
2
VCCO_2
VCCO_2
L31
VCCO
2
IO_L31P_2
IO_L31P_2
R32
I/O
2
VCCO_2
VCCO_2
N23
VCCO
2
IO_L32N_2
IO_L32N_2
R33
I/O
2
VCCO_2
VCCO_2
N29
VCCO
2
IO_L32P_2
IO_L32P_2
R34
I/O
2
VCCO_2
VCCO_2
N33
VCCO
2
IO_L33N_2
IO_L33N_2
R26
I/O
2
VCCO_2
VCCO_2
P23
VCCO
2
IO_L33P_2
IO_L33P_2
T25
I/O
2
VCCO_2
VCCO_2
R23
VCCO
2
IO_L34N_2/
VREF_2
IO_L34N_2/
VREF_2
T28
VREF
2
VCCO_2
VCCO_2
R27
VCCO
2
VCCO_2
VCCO_2
T23
VCCO
2
IO_L34P_2
IO_L34P_2
T29
I/O
2
VCCO_2
VCCO_2
T31
VCCO
2
IO_L35N_2
IO_L35N_2
T32
I/O
3
IO
IO
AH33
I/O
2
IO_L35P_2
IO_L35P_2
T33
I/O
3
IO
IO
AH34
I/O
2
IO_L37N_2
IO_L37N_2
U27
I/O
3
IO
IO
V25
I/O
2
IO_L37P_2
IO_L37P_2
U28
I/O
3
IO
IO
V26
I/O
2
IO_L38N_2
IO_L38N_2
U29
I/O
3
IO_L38P_2
U30
I/O
IO_L01N_3/
VRP_3
DCI
IO_L38P_2
IO_L01N_3/
VRP_3
AM34
2
2
IO_L39N_2
IO_L39N_2
U31
I/O
3
DCI
IO_L39P_2
IO_L39P_2
U32
I/O
IO_L01P_3/
VRN_3
AM33
2
IO_L01P_3/
VRN_3
2
IO_L40N_2
IO_L40N_2
U33
I/O
3
IO_L02N_3/
VREF_3
IO_L02N_3/
VREF_3
AL34
VREF
2
IO_L40P_2/
VREF_2
IO_L40P_2/
VREF_2
U34
VREF
3
IO_L02P_3
IO_L02P_3
AL33
I/O
2
IO_L41N_2
IO_L41N_2
F33
I/O
3
IO_L03N_3
IO_L03N_3
AK33
I/O
2
IO_L41P_2
IO_L41P_2
F34
I/O
3
IO_L03P_3
IO_L03P_3
AK32
I/O
2
N.C. (‹)
IO_L42N_2
G31
I/O
3
IO_L04N_3
IO_L04N_3
AJ32
I/O
2
N.C. (‹)
IO_L42P_2
G32
I/O
3
IO_L04P_3
IO_L04P_3
AJ31
I/O
IO_L05N_3
IO_L05N_3
AJ34
I/O
2
IO_L45N_2
IO_L45N_2
L33
I/O
3
2
IO_L45P_2
IO_L45P_2
L34
I/O
3
IO_L05P_3
IO_L05P_3
AJ33
I/O
2
IO_L46N_2
IO_L46N_2
M24
I/O
3
IO_L06N_3
IO_L06N_3
AH30
I/O
2
IO_L46P_2
IO_L46P_2
M25
I/O
3
IO_L06P_3
IO_L06P_3
AH29
I/O
2
IO_L47N_2
IO_L47N_2
M27
I/O
3
IO_L07N_3
IO_L07N_3
AG30
I/O
IO_L07P_3
IO_L07P_3
AG29
I/O
2
IO_L47P_2
IO_L47P_2
M28
I/O
3
2
IO_L48N_2
IO_L48N_2
M33
I/O
3
IO_L08N_3
IO_L08N_3
AG34
I/O
2
IO_L48P_2
IO_L48P_2
M34
I/O
3
IO_L08P_3
IO_L08P_3
AG33
I/O
2
N.C. (‹)
IO_L49N_2
P25
I/O
3
IO_L09N_3
IO_L09N_3
AF29
I/O
2
N.C. (‹)
IO_L49P_2
P26
I/O
3
IO_L09P_3/
VREF_3
IO_L09P_3/
VREF_3
AF28
VREF
2
IO_L50N_2
IO_L50N_2
P27
I/O
3
IO_L10N_3
IO_L10N_3
AF31
I/O
2
IO_L50P_2
IO_L50P_2
P28
I/O
3
IO_L10P_3
IO_L10P_3
AG31
I/O
2
N.C. (‹)
IO_L51N_2
T24
I/O
3
IO_L11N_3
IO_L11N_3
AF33
I/O
2
N.C. (‹)
IO_L51P_2
U24
I/O
3
IO_L11P_3
IO_L11P_3
AF32
I/O
2
VCCO_2
VCCO_2
D32
VCCO
3
IO_L12N_3
IO_L12N_3
AE26
I/O
2
VCCO_2
VCCO_2
H28
VCCO
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
3
IO_L12P_3
IO_L12P_3
AF27
I/O
3
IO_L34N_3
IO_L34N_3
W29
I/O
3
IO_L13N_3/
VREF_3
IO_L13N_3/
VREF_3
AE28
VREF
3
IO_L34P_3/
VREF_3
IO_L34P_3/
VREF_3
W28
VREF
3
IO_L13P_3
IO_L13P_3
AE27
I/O
3
IO_L35N_3
IO_L35N_3
W33
I/O
3
IO_L14N_3
IO_L14N_3
AE30
I/O
3
IO_L35P_3
IO_L35P_3
W32
I/O
3
IO_L14P_3
IO_L14P_3
AE29
I/O
3
IO_L37N_3
IO_L37N_3
V28
I/O
3
IO_L15N_3
IO_L15N_3
AE32
I/O
3
IO_L37P_3
IO_L37P_3
V27
I/O
3
IO_L15P_3
IO_L15P_3
AE31
I/O
3
IO_L38N_3
IO_L38N_3
V30
I/O
3
IO_L16N_3
IO_L16N_3
AE34
I/O
3
IO_L38P_3
IO_L38P_3
V29
I/O
3
IO_L16P_3
IO_L16P_3
AE33
I/O
3
IO_L39N_3
IO_L39N_3
V32
I/O
3
IO_L17N_3
IO_L17N_3
AD26
I/O
3
IO_L39P_3
IO_L39P_3
V31
I/O
3
IO_L17P_3/
VREF_3
IO_L17P_3/
VREF_3
AD25
VREF
3
IO_L40N_3/
VREF_3
IO_L40N_3/
VREF_3
V34
VREF
3
IO_L19N_3
IO_L19N_3
AD34
I/O
3
IO_L40P_3
IO_L40P_3
V33
I/O
3
IO_L19P_3
IO_L19P_3
AD33
I/O
3
N.C. (‹)
IO_L41N_3
AH32
I/O
3
IO_L20N_3
IO_L20N_3
AC25
I/O
3
N.C. (‹)
IO_L41P_3
AH31
I/O
3
IO_L20P_3
IO_L20P_3
AC24
I/O
3
N.C. (‹)
IO_L44N_3
AD29
I/O
3
IO_L21N_3
IO_L21N_3
AC28
I/O
3
N.C. (‹)
IO_L44P_3
AD28
I/O
3
IO_L21P_3
IO_L21P_3
AC27
I/O
3
IO_L45N_3
IO_L45N_3
AC34
I/O
3
IO_L22N_3
IO_L22N_3
AC30
I/O
3
IO_L45P_3
IO_L45P_3
AC33
I/O
3
IO_L22P_3
IO_L22P_3
AC29
I/O
3
IO_L46N_3
IO_L46N_3
AB28
I/O
3
IO_L23N_3
IO_L23N_3
AC32
I/O
3
IO_L46P_3
IO_L46P_3
AB27
I/O
3
IO_L23P_3/
VREF_3
IO_L23P_3/
VREF_3
AC31
VREF
3
IO_L47N_3
IO_L47N_3
AB32
I/O
3
IO_L47P_3
IO_L47P_3
AB31
I/O
3
IO_L24N_3
IO_L24N_3
AB25
I/O
3
IO_L48N_3
IO_L48N_3
AA24
I/O
3
IO_L24P_3
IO_L24P_3
AC26
I/O
3
IO_L48P_3
IO_L48P_3
AB24
I/O
3
IO_L26N_3
IO_L26N_3
AA28
I/O
3
N.C. (‹)
IO_L49N_3
AA26
I/O
3
IO_L26P_3
IO_L26P_3
AA27
I/O
3
N.C. (‹)
IO_L49P_3
AA25
I/O
3
IO_L27N_3
IO_L27N_3
AA30
I/O
3
IO_L50N_3
IO_L50N_3
Y25
I/O
3
IO_L27P_3
IO_L27P_3
AA29
I/O
3
IO_L50P_3
IO_L50P_3
Y24
I/O
3
IO_L28N_3
IO_L28N_3
AA32
I/O
3
N.C. (‹)
IO_L51N_3
V24
I/O
3
IO_L28P_3
IO_L28P_3
AA31
I/O
3
N.C. (‹)
IO_L51P_3
W24
I/O
3
IO_L29N_3
IO_L29N_3
AA34
I/O
3
VCCO_3
VCCO_3
AA23
VCCO
3
IO_L29P_3
IO_L29P_3
AA33
I/O
3
VCCO_3
VCCO_3
AB23
VCCO
3
IO_L30N_3
IO_L30N_3
Y29
I/O
3
VCCO_3
VCCO_3
AB29
VCCO
3
IO_L30P_3
IO_L30P_3
Y28
I/O
3
VCCO_3
VCCO_3
AB33
VCCO
3
IO_L31N_3
IO_L31N_3
Y32
I/O
3
VCCO_3
VCCO_3
AD27
VCCO
3
IO_L31P_3
IO_L31P_3
Y31
I/O
3
VCCO_3
VCCO_3
AD31
VCCO
3
IO_L32N_3
IO_L32N_3
Y34
I/O
3
VCCO_3
VCCO_3
AG28
VCCO
3
IO_L32P_3
IO_L32P_3
Y33
I/O
3
VCCO_3
VCCO_3
AG32
VCCO
3
IO_L33N_3
IO_L33N_3
W25
I/O
3
VCCO_3
VCCO_3
AL32
VCCO
3
IO_L33P_3
IO_L33P_3
Y26
I/O
3
VCCO_3
VCCO_3
W23
VCCO
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
89
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
90
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
3
VCCO_3
VCCO_3
W31
VCCO
4
IO_L09N_4
IO_L09N_4
AL25
I/O
3
VCCO_3
VCCO_3
Y23
VCCO
4
IO_L09P_4
IO_L09P_4
AM25
I/O
3
VCCO_3
VCCO_3
Y27
VCCO
4
IO_L10N_4
IO_L10N_4
AN25
I/O
4
IO
IO
AD18
I/O
4
IO_L10P_4
IO_L10P_4
AP25
I/O
4
IO
IO
AD19
I/O
4
IO_L11N_4
IO_L11N_4
AD23
I/O
4
IO
IO
AD20
I/O
4
IO_L11P_4
IO_L11P_4
AE23
I/O
4
IO
IO
AD22
I/O
4
IO_L12N_4
IO_L12N_4
AF23
I/O
4
IO
IO
AE18
I/O
4
IO_L12P_4
IO_L12P_4
AG23
I/O
4
IO
IO
AE19
I/O
4
IO_L13N_4
IO_L13N_4
AJ23
I/O
4
IO
IO
AE22
I/O
4
IO_L13P_4
IO_L13P_4
AK23
I/O
4
N.C. (‹)
IO
AE24
I/O
4
IO_L14N_4
IO_L14N_4
AL23
I/O
4
IO
IO
AF24
I/O
4
IO_L14P_4
IO_L14P_4
AM23
I/O
4
N.C. (‹)
IO
AF26
I/O
4
IO_L15N_4
IO_L15N_4
AN23
I/O
4
IO
IO
AG26
I/O
4
IO_L15P_4
IO_L15P_4
AP23
I/O
4
IO
IO
AG27
I/O
4
IO_L16N_4
IO_L16N_4
AG22
I/O
4
IO
IO
AJ27
I/O
4
IO_L16P_4
IO_L16P_4
AH22
I/O
4
IO
IO
AJ29
I/O
4
IO_L17N_4
IO_L17N_4
AL22
I/O
4
IO
IO
AK25
I/O
4
IO_L17P_4
IO_L17P_4
AM22
I/O
4
IO
IO
AN26
I/O
4
IO_L18N_4
IO_L18N_4
AD21
I/O
4
IO/VREF_4
IO/VREF_4
AF21
VREF
4
IO_L18P_4
IO_L18P_4
AE21
I/O
4
IO/VREF_4
IO/VREF_4
AH23
VREF
4
IO_L19N_4
IO_L19N_4
AG21
I/O
4
IO/VREF_4
IO/VREF_4
AK18
VREF
4
IO_L19P_4
IO_L19P_4
AH21
I/O
4
IO/VREF_4
IO/VREF_4
AL30
VREF
4
IO_L20N_4
IO_L20N_4
AJ21
I/O
4
IO_L01N_4/
VRP_4
IO_L01N_4/
VRP_4
AN32
DCI
4
IO_L20P_4
IO_L20P_4
AK21
I/O
4
IO_L21N_4
IO_L21N_4
AL21
I/O
4
IO_L01P_4/
VRN_4
IO_L01P_4/
VRN_4
AP32
DCI
4
IO_L21P_4
IO_L21P_4
AM21
I/O
4
IO_L02N_4
IO_L02N_4
AN31
I/O
4
IO_L22N_4/
VREF_4
IO_L22N_4/
VREF_4
AN21
VREF
4
IO_L02P_4
IO_L02P_4
AP31
I/O
4
IO_L22P_4
IO_L22P_4
AP21
I/O
4
IO_L03N_4
IO_L03N_4
AM30
I/O
4
IO_L23N_4
IO_L23N_4
AE20
I/O
4
IO_L03P_4
IO_L03P_4
AN30
I/O
4
IO_L23P_4
IO_L23P_4
AF20
I/O
4
IO_L04N_4
IO_L04N_4
AN27
I/O
4
IO_L24N_4
IO_L24N_4
AH20
I/O
4
IO_L04P_4
IO_L04P_4
AP27
I/O
4
IO_L24P_4
IO_L24P_4
AJ20
I/O
4
IO_L05N_4
IO_L05N_4
AH26
I/O
4
IO_L25N_4
IO_L25N_4
AL20
I/O
4
IO_L05P_4
IO_L05P_4
AJ26
I/O
4
IO_L25P_4
IO_L25P_4
AM20
I/O
4
IO_L06N_4/
VREF_4
IO_L06N_4/
VREF_4
AL26
VREF
4
IO_L26N_4
IO_L26N_4
AN20
I/O
4
IO_L06P_4
IO_L06P_4
AM26
I/O
4
IO_L26P_4/
VREF_4
IO_L26P_4/
VREF_4
AP20
VREF
4
IO_L07N_4
IO_L07N_4
AF25
I/O
4
IO_L07P_4
AG25
I/O
IO_L27N_4/
DIN/D0
DUAL
IO_L07P_4
IO_L27N_4/
DIN/D0
AH19
4
4
IO_L08N_4
IO_L08N_4
AH25
I/O
4
IO_L08P_4
AJ25
I/O
IO_L27P_4/
D1
DUAL
IO_L08P_4
IO_L27P_4/
D1
AJ19
4
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
4
4
IO_L28N_4
IO_L28N_4
AM19
I/O
4
IO_L28P_4
IO_L28P_4
AN19
I/O
4
IO_L29N_4
IO_L29N_4
AF18
I/O
4
IO_L29P_4
IO_L29P_4
AG18
I/O
4
IO_L30N_4/
D2
IO_L30N_4/
D2
AH18
DUAL
4
IO_L30P_4/
D3
IO_L30P_4/
D3
AJ18
DUAL
4
IO_L31N_4/
INIT_B
IO_L31N_4/
INIT_B
AL18
DUAL
4
IO_L31P_4/
DOUT/BUSY
IO_L31P_4/
DOUT/BUSY
AM18
DUAL
4
IO_L32N_4/
GCLK1
IO_L32N_4/
GCLK1
AN18
GCLK
4
IO_L32P_4/
GCLK0
IO_L32P_4/
GCLK0
AP18
GCLK
4
IO_L33N_4
IO_L33N_4
AL29
I/O
4
IO_L33P_4
IO_L33P_4
AM29
I/O
4
IO_L34N_4
IO_L34N_4
AN29
I/O
4
IO_L34P_4
IO_L34P_4
AP29
I/O
4
IO_L35N_4
IO_L35N_4
AJ28
I/O
4
IO_L35P_4
IO_L35P_4
AK28
I/O
4
N.C. (‹)
IO_L36N_4
AL28
I/O
4
N.C. (‹)
IO_L36P_4
AM28
I/O
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
VCCO_4
VCCO_4
AM31
VCCO
4
VCCO_4
VCCO_4
AN22
VCCO
5
IO
IO
AD11
I/O
5
N.C. (‹)
IO
AD12
I/O
5
IO
IO
AD14
I/O
5
IO
IO
AD15
I/O
5
IO
IO
AD16
I/O
5
IO
IO
AD17
I/O
5
IO
IO
AE14
I/O
5
IO
IO
AE16
I/O
5
N.C. (‹)
IO
AF9
I/O
5
IO
IO
AG9
I/O
5
IO
IO
AG12
I/O
5
IO
IO
AJ6
I/O
5
IO
IO
AJ17
I/O
5
IO
IO
AK10
I/O
5
IO
IO
AK14
I/O
5
IO
IO
AM12
I/O
5
IO
IO
AN9
I/O
5
IO/VREF_5
IO/VREF_5
AJ8
VREF
5
IO/VREF_5
IO/VREF_5
AL5
VREF
5
IO/VREF_5
IO/VREF_5
AP17
VREF
5
IO_L01N_5/
RDWR_B
IO_L01N_5/
RDWR_B
AP3
DUAL
5
IO_L01P_5/
CS_B
IO_L01P_5/
CS_B
AN3
DUAL
4
N.C. (‹)
IO_L37N_4
AN28
I/O
4
N.C. (‹)
IO_L37P_4
AP28
I/O
4
IO_L38N_4
IO_L38N_4
AK27
I/O
4
IO_L38P_4
IO_L38P_4
AL27
I/O
5
IO_L02N_5
IO_L02N_5
AP4
I/O
4
N.C. (‹)
IO_L39N_4
AH24
I/O
5
IO_L02P_5
IO_L02P_5
AN4
I/O
4
N.C. (‹)
IO_L39P_4
AJ24
I/O
5
IO_L03N_5
IO_L03N_5
AN5
I/O
4
N.C. (‹)
IO_L40N_4
AN24
I/O
5
IO_L03P_5
IO_L03P_5
AM5
I/O
4
N.C. (‹)
IO_L40P_4
AP24
I/O
5
IO_L04N_5
IO_L04N_5
AM6
I/O
4
VCCO_4
VCCO_4
AC19
VCCO
5
IO_L04P_5
IO_L04P_5
AL6
I/O
4
VCCO_4
VCCO_4
AC20
VCCO
5
IO_L05N_5
IO_L05N_5
AP6
I/O
4
VCCO_4
VCCO_4
AC21
VCCO
5
IO_L05P_5
IO_L05P_5
AN6
I/O
4
VCCO_4
VCCO_4
AC22
VCCO
5
IO_L06N_5
IO_L06N_5
AK7
I/O
4
VCCO_4
VCCO_4
AG20
VCCO
5
IO_L06P_5
IO_L06P_5
AJ7
I/O
4
VCCO_4
VCCO_4
AG24
VCCO
5
IO_L07N_5
IO_L07N_5
AG10
I/O
4
VCCO_4
VCCO_4
AH27
VCCO
5
IO_L07P_5
IO_L07P_5
AF10
I/O
4
VCCO_4
VCCO_4
AJ22
VCCO
5
IO_L08N_5
IO_L08N_5
AJ10
I/O
4
VCCO_4
VCCO_4
AL19
VCCO
5
IO_L08P_5
IO_L08P_5
AH10
I/O
4
VCCO_4
VCCO_4
AL24
VCCO
5
IO_L09N_5
IO_L09N_5
AM10
I/O
4
VCCO_4
VCCO_4
AM27
VCCO
5
IO_L09P_5
IO_L09P_5
AL10
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
91
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
92
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
5
IO_L10N_5/
VRP_5
IO_L10N_5/
VRP_5
AP10
DCI
5
IO_L28P_5/
D7
IO_L28P_5/
D7
AM16
DUAL
5
IO_L10P_5/
VRN_5
IO_L10P_5/
VRN_5
AN10
DCI
5
IO_L29N_5
IO_L29N_5
AF17
I/O
5
IO_L11N_5/
VREF_5
AP11
VREF
IO_L29P_5/
VREF_5
VREF
IO_L11N_5/
VREF_5
IO_L29P_5/
VREF_5
AE17
5
5
IO_L30N_5
IO_L30N_5
AH17
I/O
5
IO_L11P_5
IO_L11P_5
AN11
I/O
5
IO_L30P_5
IO_L30P_5
AG17
I/O
5
IO_L12N_5
IO_L12N_5
AF12
I/O
5
IO_L12P_5
AE12
I/O
IO_L31N_5/
D4
DUAL
IO_L12P_5
IO_L31N_5/
D4
AL17
5
5
IO_L13N_5
IO_L13N_5
AJ12
I/O
5
DUAL
IO_L13P_5
IO_L13P_5
AH12
I/O
IO_L31P_5/
D5
AK17
5
IO_L31P_5/
D5
5
IO_L14N_5
IO_L14N_5
AL12
I/O
5
IO_L32N_5/
GCLK3
IO_L32N_5/
GCLK3
AN17
GCLK
5
IO_L14P_5
IO_L14P_5
AK12
I/O
5
IO_L15N_5
AP12
I/O
IO_L32P_5/
GCLK2
GCLK
IO_L15N_5
IO_L32P_5/
GCLK2
AM17
5
5
IO_L15P_5
IO_L15P_5
AN12
I/O
5
N.C. (‹)
IO_L33N_5
AM7
I/O
5
IO_L16N_5
IO_L16N_5
AE13
I/O
5
N.C. (‹)
IO_L33P_5
AL7
I/O
5
IO_L16P_5
IO_L16P_5
AD13
I/O
5
N.C. (‹)
IO_L34N_5
AP7
I/O
5
IO_L17N_5
IO_L17N_5
AH13
I/O
5
N.C. (‹)
IO_L34P_5
AN7
I/O
5
IO_L17P_5
IO_L17P_5
AG13
I/O
5
IO_L35N_5
IO_L35N_5
AL8
I/O
5
IO_L18N_5
IO_L18N_5
AM13
I/O
5
IO_L35P_5
IO_L35P_5
AK8
I/O
5
IO_L18P_5
IO_L18P_5
AL13
I/O
5
IO_L36N_5
IO_L36N_5
AP8
I/O
5
IO_L19N_5
IO_L19N_5
AG14
I/O
5
IO_L36P_5
IO_L36P_5
AN8
I/O
5
IO_L19P_5/
VREF_5
IO_L19P_5/
VREF_5
AF14
VREF
5
IO_L37N_5
IO_L37N_5
AJ9
I/O
5
IO_L37P_5
IO_L37P_5
AH9
I/O
5
IO_L20N_5
IO_L20N_5
AJ14
I/O
5
IO_L38N_5
IO_L38N_5
AM9
I/O
5
IO_L20P_5
IO_L20P_5
AH14
I/O
5
IO_L38P_5
IO_L38P_5
AL9
I/O
5
IO_L21N_5
IO_L21N_5
AM14
I/O
5
N.C. (‹)
IO_L39N_5
AF11
I/O
5
IO_L21P_5
IO_L21P_5
AL14
I/O
5
N.C. (‹)
IO_L39P_5
AE11
I/O
5
IO_L22N_5
IO_L22N_5
AP14
I/O
5
N.C. (‹)
IO_L40N_5
AJ11
I/O
5
IO_L22P_5
IO_L22P_5
AN14
I/O
5
N.C. (‹)
IO_L40P_5
AH11
I/O
5
IO_L23N_5
IO_L23N_5
AF15
I/O
5
VCCO_5
VCCO_5
AC13
VCCO
5
IO_L23P_5
IO_L23P_5
AE15
I/O
5
VCCO_5
VCCO_5
AC14
VCCO
5
IO_L24N_5
IO_L24N_5
AJ15
I/O
5
VCCO_5
VCCO_5
AC15
VCCO
5
IO_L24P_5
IO_L24P_5
AH15
I/O
5
VCCO_5
VCCO_5
AC16
VCCO
5
IO_L25N_5
IO_L25N_5
AM15
I/O
5
VCCO_5
VCCO_5
AG11
VCCO
5
IO_L25P_5
IO_L25P_5
AL15
I/O
5
VCCO_5
VCCO_5
AG15
VCCO
5
IO_L26N_5
IO_L26N_5
AP15
I/O
5
VCCO_5
VCCO_5
AH8
VCCO
5
IO_L26P_5
IO_L26P_5
AN15
I/O
5
VCCO_5
VCCO_5
AJ13
VCCO
5
IO_L27N_5/
VREF_5
IO_L27N_5/
VREF_5
AJ16
VREF
5
VCCO_5
VCCO_5
AL11
VCCO
VCCO_5
VCCO_5
AL16
VCCO
5
IO_L27P_5
IO_L27P_5
AH16
I/O
5
5
IO_L28N_5/
D6
IO_L28N_5/
D6
AN16
DUAL
5
VCCO_5
VCCO_5
AM4
VCCO
5
VCCO_5
VCCO_5
AM8
VCCO
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
FG1156
Pin
Number
Type
Bank
Type
AN13
VCCO
6
IO_L17N_6
IO_L17N_6
AD10
I/O
6
IO_L17P_6/
VREF_6
IO_L17P_6/
VREF_6
AD9
VREF
XC3S4000
Pin Name
XC3S5000
Pin Name
5
VCCO_5
VCCO_5
6
IO
IO
AH1
I/O
6
IO
IO
AH2
I/O
6
IO
IO
V9
I/O
6
IO_L19N_6
IO_L19N_6
AD2
I/O
6
IO
IO
V10
I/O
6
IO_L19P_6
IO_L19P_6
AD1
I/O
6
IO_L01N_6/
VRP_6
IO_L01N_6/
VRP_6
AM2
DCI
6
IO_L20N_6
IO_L20N_6
AC11
I/O
6
IO_L20P_6
IO_L20P_6
AC10
I/O
6
IO_L01P_6/
VRN_6
IO_L01P_6/
VRN_6
AM1
DCI
6
IO_L21N_6
IO_L21N_6
AC8
I/O
6
IO_L21P_6
IO_L21P_6
AC7
I/O
6
IO_L02N_6
IO_L02N_6
AL2
I/O
6
IO_L22N_6
IO_L22N_6
AC6
I/O
6
IO_L02P_6
IO_L02P_6
AL1
I/O
6
IO_L22P_6
IO_L22P_6
AC5
I/O
6
IO_L03N_6/
VREF_6
IO_L03N_6/
VREF_6
AK3
VREF
6
IO_L23N_6
IO_L23N_6
AC2
I/O
6
IO_L23P_6
IO_L23P_6
AC1
I/O
6
IO_L24N_6/
VREF_6
IO_L24N_6/
VREF_6
AC9
VREF
6
IO_L03P_6
IO_L03P_6
AK2
I/O
6
IO_L04N_6
IO_L04N_6
AJ4
I/O
6
IO_L04P_6
IO_L04P_6
AJ3
I/O
6
IO_L24P_6
IO_L24P_6
AB10
I/O
6
IO_L05N_6
IO_L05N_6
AJ2
I/O
6
IO_L25N_6
IO_L25N_6
AB8
I/O
6
IO_L05P_6
IO_L05P_6
AJ1
I/O
6
IO_L25P_6
IO_L25P_6
AB7
I/O
6
IO_L06N_6
IO_L06N_6
AH6
I/O
6
IO_L26N_6
IO_L26N_6
AB4
I/O
6
IO_L06P_6
IO_L06P_6
AH5
I/O
6
IO_L26P_6
IO_L26P_6
AB3
I/O
6
IO_L07N_6
IO_L07N_6
AG6
I/O
6
IO_L27N_6
IO_L27N_6
AB11
I/O
6
IO_L07P_6
IO_L07P_6
AG5
I/O
6
IO_L27P_6
IO_L27P_6
AA11
I/O
6
IO_L08N_6
IO_L08N_6
AG2
I/O
6
IO_L28N_6
IO_L28N_6
AA8
I/O
6
IO_L08P_6
IO_L08P_6
AG1
I/O
6
IO_L28P_6
IO_L28P_6
AA7
I/O
6
IO_L09N_6/
VREF_6
IO_L09N_6/
VREF_6
AF7
VREF
6
IO_L29N_6
IO_L29N_6
AA6
I/O
6
IO_L09P_6
IO_L09P_6
AF6
I/O
6
IO_L29P_6
IO_L29P_6
AA5
I/O
6
IO_L30N_6
IO_L30N_6
AA4
I/O
6
IO_L30P_6
IO_L30P_6
AA3
I/O
6
IO_L31N_6
IO_L31N_6
AA2
I/O
6
IO_L31P_6
IO_L31P_6
AA1
I/O
6
IO_L32N_6
IO_L32N_6
Y11
I/O
6
IO_L32P_6
IO_L32P_6
Y10
I/O
6
IO_L33N_6
IO_L33N_6
Y4
I/O
6
IO_L33P_6
IO_L33P_6
Y3
I/O
6
IO_L34N_6/
VREF_6
IO_L34N_6/
VREF_6
Y2
VREF
6
IO_L34P_6
IO_L34P_6
Y1
I/O
6
IO_L35N_6
IO_L35N_6
Y9
I/O
6
IO_L35P_6
IO_L35P_6
W10
I/O
6
IO_L36N_6
IO_L36N_6
W7
I/O
6
IO_L36P_6
IO_L36P_6
W6
I/O
6
IO_L37N_6
IO_L37N_6
W3
I/O
6
IO_L10N_6
IO_L10N_6
AG4
I/O
6
IO_L10P_6
IO_L10P_6
AF4
I/O
6
IO_L11N_6
IO_L11N_6
AF3
I/O
6
IO_L11P_6
IO_L11P_6
AF2
I/O
6
IO_L12N_6
IO_L12N_6
AF8
I/O
6
IO_L12P_6
IO_L12P_6
AE9
I/O
6
IO_L13N_6
IO_L13N_6
AE8
I/O
6
IO_L13P_6/
VREF_6
IO_L13P_6/
VREF_6
AE7
VREF
6
IO_L14N_6
IO_L14N_6
AE6
I/O
6
IO_L14P_6
IO_L14P_6
AE5
I/O
6
IO_L15N_6
IO_L15N_6
AE4
I/O
6
IO_L15P_6
IO_L15P_6
AE3
I/O
6
IO_L16N_6
IO_L16N_6
AE2
I/O
6
IO_L16P_6
IO_L16P_6
AE1
I/O
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
93
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
94
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
7
IO_L01P_7/
VRN_7
XC3S4000
Pin Name
FG1156
Pin
Number
Type
IO_L01P_7/
VRN_7
C2
DCI
XC3S5000
Pin Name
6
IO_L37P_6
IO_L37P_6
W2
I/O
6
IO_L38N_6
IO_L38N_6
V6
I/O
6
IO_L38P_6
IO_L38P_6
V5
I/O
7
IO_L02N_7
IO_L02N_7
D1
I/O
6
IO_L39N_6
IO_L39N_6
V4
I/O
7
IO_L02P_7
IO_L02P_7
D2
I/O
6
IO_L39P_6
IO_L39P_6
V3
I/O
7
IO_L03N_7/
VREF_7
IO_L03N_7/
VREF_7
E2
VREF
6
IO_L40N_6
IO_L40N_6
V2
I/O
7
IO_L03P_7
IO_L03P_7
E3
I/O
6
IO_L40P_6/
VREF_6
IO_L40P_6/
VREF_6
V1
VREF
7
IO_L04N_7
IO_L04N_7
F3
I/O
6
N.C. (‹)
IO_L41N_6
AH4
I/O
7
IO_L04P_7
IO_L04P_7
F4
I/O
6
N.C. (‹)
IO_L41P_6
AH3
I/O
7
IO_L05N_7
IO_L05N_7
F1
I/O
6
N.C. (‹)
IO_L44N_6
AD7
I/O
7
IO_L05P_7
IO_L05P_7
F2
I/O
IO_L06N_7
IO_L06N_7
G5
I/O
6
N.C. (‹)
IO_L44P_6
AD6
I/O
7
6
IO_L45N_6
IO_L45N_6
AC4
I/O
7
IO_L06P_7
IO_L06P_7
G6
I/O
6
IO_L45P_6
IO_L45P_6
AC3
I/O
7
IO_L07N_7
IO_L07N_7
H5
I/O
6
N.C. (‹)
IO_L46N_6
AA10
I/O
7
IO_L07P_7
IO_L07P_7
H6
I/O
6
N.C. (‹)
IO_L46P_6
AA9
I/O
7
IO_L08N_7
IO_L08N_7
H1
I/O
IO_L08P_7
IO_L08P_7
H2
I/O
6
IO_L48N_6
IO_L48N_6
Y7
I/O
7
6
IO_L48P_6
IO_L48P_6
Y6
I/O
7
IO_L09N_7
IO_L09N_7
J6
I/O
6
N.C. (‹)
IO_L49N_6
W11
I/O
7
IO_L09P_7
IO_L09P_7
J7
I/O
6
N.C. (‹)
IO_L49P_6
V11
I/O
7
IO_L10N_7
IO_L10N_7
J4
I/O
6
IO_L52N_6
IO_L52N_6
V8
I/O
7
IO_L10P_7/
VREF_7
IO_L10P_7/
VREF_7
H4
VREF
6
IO_L52P_6
IO_L52P_6
V7
I/O
7
IO_L11N_7
IO_L11N_7
J2
I/O
6
VCCO_6
VCCO_6
AA12
VCCO
7
IO_L11P_7
IO_L11P_7
J3
I/O
6
VCCO_6
VCCO_6
AB12
VCCO
7
IO_L12N_7
IO_L12N_7
K9
I/O
6
VCCO_6
VCCO_6
AB2
VCCO
7
IO_L12P_7
IO_L12P_7
J8
I/O
6
VCCO_6
VCCO_6
AB6
VCCO
7
IO_L13N_7
IO_L13N_7
K7
I/O
6
VCCO_6
VCCO_6
AD4
VCCO
7
IO_L13P_7
IO_L13P_7
K8
I/O
6
VCCO_6
VCCO_6
AD8
VCCO
7
IO_L14N_7
IO_L14N_7
K5
I/O
6
VCCO_6
VCCO_6
AG3
VCCO
7
IO_L14P_7
IO_L14P_7
K6
I/O
6
VCCO_6
VCCO_6
AG7
VCCO
7
IO_L15N_7
IO_L15N_7
K3
I/O
6
VCCO_6
VCCO_6
AL3
VCCO
7
IO_L15P_7
IO_L15P_7
K4
I/O
6
VCCO_6
VCCO_6
W12
VCCO
7
IO_L16N_7
IO_L16N_7
K1
I/O
6
VCCO_6
VCCO_6
W4
VCCO
7
VCCO_6
Y12
VCCO
IO_L16P_7/
VREF_7
VREF
VCCO_6
IO_L16P_7/
VREF_7
K2
6
6
VCCO_6
VCCO_6
Y8
VCCO
7
IO_L17N_7
IO_L17N_7
L9
I/O
7
IO
IO
G1
I/O
7
IO_L17P_7
IO_L17P_7
L10
I/O
7
IO
IO
G2
I/O
7
IO
U10
I/O
IO_L19N_7/
VREF_7
VREF
IO
IO_L19N_7/
VREF_7
L1
7
7
IO
IO
U9
I/O
7
IO_L19P_7
IO_L19P_7
L2
I/O
7
IO_L01N_7/
VRP_7
IO_L01N_7/
VRP_7
C1
DCI
7
IO_L20N_7
IO_L20N_7
M10
I/O
7
IO_L20P_7
IO_L20P_7
M11
I/O
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
7
IO_L21N_7
IO_L21N_7
M7
I/O
7
N.C. (‹)
IO_L41P_7
G4
I/O
7
IO_L21P_7
IO_L21P_7
M8
I/O
7
N.C. (‹)
IO_L44N_7
L6
I/O
7
IO_L22N_7
IO_L22N_7
M5
I/O
7
N.C. (‹)
IO_L44P_7
L7
I/O
7
IO_L22P_7
IO_L22P_7
M6
I/O
7
IO_L45N_7
IO_L45N_7
M1
I/O
7
IO_L23N_7
IO_L23N_7
M3
I/O
7
IO_L45P_7
IO_L45P_7
M2
I/O
7
IO_L23P_7
IO_L23P_7
M4
I/O
7
IO_L46N_7
IO_L46N_7
N7
I/O
7
IO_L24N_7
IO_L24N_7
N10
I/O
7
IO_L46P_7
IO_L46P_7
N8
I/O
7
IO_L24P_7
IO_L24P_7
M9
I/O
7
N.C. (‹)
IO_L47N_7
P9
I/O
7
IO_L25N_7
IO_L25N_7
N3
I/O
7
N.C. (‹)
IO_L47P_7
P10
I/O
7
IO_L25P_7
IO_L25P_7
N4
I/O
7
IO_L49N_7
IO_L49N_7
P1
I/O
7
IO_L26N_7
IO_L26N_7
P11
I/O
7
IO_L49P_7
IO_L49P_7
P2
I/O
7
IO_L26P_7
IO_L26P_7
N11
I/O
7
IO_L50N_7
IO_L50N_7
R10
I/O
7
IO_L27N_7
IO_L27N_7
P7
I/O
7
IO_L50P_7
IO_L50P_7
R11
I/O
7
IO_L27P_7/
VREF_7
IO_L27P_7/
VREF_7
P8
VREF
7
N.C. (‹)
IO_L51N_7
U11
I/O
7
N.C. (‹)
IO_L51P_7
T11
I/O
7
IO_L28N_7
IO_L28N_7
P5
I/O
7
VCCO_7
VCCO_7
D3
VCCO
7
IO_L28P_7
IO_L28P_7
P6
I/O
7
VCCO_7
VCCO_7
H3
VCCO
7
IO_L29N_7
IO_L29N_7
P3
I/O
7
VCCO_7
VCCO_7
H7
VCCO
7
IO_L29P_7
IO_L29P_7
P4
I/O
7
VCCO_7
VCCO_7
L4
VCCO
7
IO_L30N_7
IO_L30N_7
R6
I/O
7
VCCO_7
VCCO_7
L8
VCCO
7
IO_L30P_7
IO_L30P_7
R7
I/O
7
VCCO_7
VCCO_7
N12
VCCO
7
IO_L31N_7
IO_L31N_7
R3
I/O
7
VCCO_7
VCCO_7
N2
VCCO
7
IO_L31P_7
IO_L31P_7
R4
I/O
7
VCCO_7
VCCO_7
N6
VCCO
7
IO_L32N_7
IO_L32N_7
R1
I/O
7
VCCO_7
VCCO_7
P12
VCCO
7
IO_L32P_7
IO_L32P_7
R2
I/O
7
VCCO_7
VCCO_7
R12
VCCO
7
IO_L33N_7
IO_L33N_7
T10
I/O
7
VCCO_7
VCCO_7
R8
VCCO
7
IO_L33P_7
IO_L33P_7
R9
I/O
7
VCCO_7
VCCO_7
T12
VCCO
7
IO_L34N_7
IO_L34N_7
T6
I/O
7
VCCO_7
VCCO_7
T4
VCCO
7
IO_L34P_7
IO_L34P_7
T7
I/O
N/A
GND
GND
A1
GND
7
IO_L35N_7
IO_L35N_7
T2
I/O
N/A
GND
GND
A13
GND
7
IO_L35P_7
IO_L35P_7
T3
I/O
N/A
GND
GND
A16
GND
7
IO_L37N_7
IO_L37N_7
U7
I/O
N/A
GND
GND
A19
GND
7
IO_L37P_7/
VREF_7
IO_L37P_7/
VREF_7
U8
VREF
N/A
GND
GND
A2
GND
7
IO_L38N_7
IO_L38N_7
U5
I/O
N/A
GND
GND
A22
GND
7
IO_L38P_7
IO_L38P_7
U6
I/O
N/A
GND
GND
A26
GND
7
IO_L39N_7
IO_L39N_7
U3
I/O
N/A
GND
GND
A30
GND
7
IO_L39P_7
IO_L39P_7
U4
I/O
N/A
GND
GND
A33
GND
N/A
GND
GND
A34
GND
N/A
GND
GND
A5
GND
7
IO_L40N_7/
VREF_7
IO_L40N_7/
VREF_7
U1
7
IO_L40P_7
IO_L40P_7
U2
I/O
N/A
GND
GND
A9
GND
7
N.C. (‹)
IO_L41N_7
G3
I/O
N/A
GND
GND
AA14
GND
DS099-4 (v1.5) July 13, 2004
Product Specification
VREF
www.xilinx.com
1-800-255-7778
95
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
96
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
N/A
GND
GND
AA15
GND
N/A
GND
GND
AM3
GND
N/A
GND
GND
AA16
GND
N/A
GND
GND
AM32
GND
N/A
GND
GND
AA17
GND
N/A
GND
GND
AN1
GND
N/A
GND
GND
AA18
GND
N/A
GND
GND
AN2
GND
N/A
GND
GND
AA19
GND
N/A
GND
GND
AN33
GND
N/A
GND
GND
AA20
GND
N/A
GND
GND
AN34
GND
N/A
GND
GND
AA21
GND
N/A
GND
GND
AP1
GND
N/A
GND
GND
AB1
GND
N/A
GND
GND
AP13
GND
N/A
GND
GND
AB17
GND
N/A
GND
GND
AP16
GND
N/A
GND
GND
AB18
GND
N/A
GND
GND
AP19
GND
N/A
GND
GND
AB26
GND
N/A
GND
GND
AP2
GND
N/A
GND
GND
AB30
GND
N/A
GND
GND
AP22
GND
N/A
GND
GND
AB34
GND
N/A
GND
GND
AP26
GND
N/A
GND
GND
AB5
GND
N/A
GND
GND
AP30
GND
N/A
GND
GND
AB9
GND
N/A
GND
GND
AP33
GND
N/A
GND
GND
AD3
GND
N/A
GND
GND
AP34
GND
N/A
GND
GND
AD32
GND
N/A
GND
GND
AP5
GND
N/A
GND
GND
AE10
GND
N/A
GND
GND
AP9
GND
N/A
GND
GND
AE25
GND
N/A
GND
GND
B1
GND
N/A
GND
GND
AF1
GND
N/A
GND
GND
B2
GND
N/A
GND
GND
AF13
GND
N/A
GND
GND
B33
GND
N/A
GND
GND
AF16
GND
N/A
GND
GND
B34
GND
N/A
GND
GND
AF19
GND
N/A
GND
GND
C11
GND
N/A
GND
GND
AF22
GND
N/A
GND
GND
C24
GND
N/A
GND
GND
AF30
GND
N/A
GND
GND
C3
GND
N/A
GND
GND
AF34
GND
N/A
GND
GND
C32
GND
N/A
GND
GND
AF5
GND
N/A
GND
GND
E1
GND
N/A
GND
GND
AH28
GND
N/A
GND
GND
E13
GND
N/A
GND
GND
AH7
GND
N/A
GND
GND
E16
GND
N/A
GND
GND
AK1
GND
N/A
GND
GND
E19
GND
N/A
GND
GND
AK13
GND
N/A
GND
GND
E22
GND
N/A
GND
GND
AK16
GND
N/A
GND
GND
E26
GND
N/A
GND
GND
AK19
GND
N/A
GND
GND
E30
GND
N/A
GND
GND
AK22
GND
N/A
GND
GND
E34
GND
N/A
GND
GND
AK26
GND
N/A
GND
GND
E5
GND
N/A
GND
GND
AK30
GND
N/A
GND
GND
E9
GND
N/A
GND
GND
AK34
GND
N/A
GND
GND
G28
GND
N/A
GND
GND
AK5
GND
N/A
GND
GND
G7
GND
N/A
GND
GND
AK9
GND
N/A
GND
GND
J1
GND
N/A
GND
GND
AM11
GND
N/A
GND
GND
J13
GND
N/A
GND
GND
AM24
GND
N/A
GND
GND
J16
GND
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
N/A
GND
GND
J19
GND
N/A
GND
GND
T21
GND
N/A
GND
GND
J22
GND
N/A
GND
GND
T26
GND
N/A
GND
GND
J30
GND
N/A
GND
GND
T30
GND
N/A
GND
GND
J34
GND
N/A
GND
GND
T34
GND
N/A
GND
GND
J5
GND
N/A
GND
GND
T5
GND
N/A
GND
GND
K10
GND
N/A
GND
GND
T9
GND
N/A
GND
GND
K25
GND
N/A
GND
GND
U13
GND
N/A
GND
GND
L3
GND
N/A
GND
GND
U14
GND
N/A
GND
GND
L32
GND
N/A
GND
GND
U15
GND
N/A
GND
GND
N1
GND
N/A
GND
GND
U16
GND
N/A
GND
GND
N17
GND
N/A
GND
GND
U17
GND
N/A
GND
GND
N18
GND
N/A
GND
GND
U18
GND
N/A
GND
GND
N26
GND
N/A
GND
GND
U19
GND
N/A
GND
GND
N30
GND
N/A
GND
GND
U20
GND
N/A
GND
GND
N34
GND
N/A
GND
GND
U21
GND
N/A
GND
GND
N5
GND
N/A
GND
GND
U22
GND
N/A
GND
GND
N9
GND
N/A
GND
GND
V13
GND
N/A
GND
GND
P14
GND
N/A
GND
GND
V14
GND
N/A
GND
GND
P15
GND
N/A
GND
GND
V15
GND
N/A
GND
GND
P16
GND
N/A
GND
GND
V16
GND
N/A
GND
GND
P17
GND
N/A
GND
GND
V17
GND
N/A
GND
GND
P18
GND
N/A
GND
GND
V18
GND
N/A
GND
GND
P19
GND
N/A
GND
GND
V19
GND
N/A
GND
GND
P20
GND
N/A
GND
GND
V20
GND
N/A
GND
GND
P21
GND
N/A
GND
GND
V21
GND
N/A
GND
GND
R14
GND
N/A
GND
GND
V22
GND
N/A
GND
GND
R15
GND
N/A
GND
GND
W1
GND
N/A
GND
GND
R16
GND
N/A
GND
GND
W14
GND
N/A
GND
GND
R17
GND
N/A
GND
GND
W15
GND
N/A
GND
GND
R18
GND
N/A
GND
GND
W16
GND
N/A
GND
GND
R19
GND
N/A
GND
GND
W17
GND
N/A
GND
GND
R20
GND
N/A
GND
GND
W18
GND
N/A
GND
GND
R21
GND
N/A
GND
GND
W19
GND
N/A
GND
GND
T1
GND
N/A
GND
GND
W20
GND
N/A
GND
GND
T14
GND
N/A
GND
GND
W21
GND
N/A
GND
GND
T15
GND
N/A
GND
GND
W26
GND
N/A
GND
GND
T16
GND
N/A
GND
GND
W30
GND
N/A
GND
GND
T17
GND
N/A
GND
GND
W34
GND
N/A
GND
GND
T18
GND
N/A
GND
GND
W5
GND
N/A
GND
GND
T19
GND
N/A
GND
GND
W9
GND
N/A
GND
GND
T20
GND
N/A
GND
GND
Y14
GND
DS099-4 (v1.5) July 13, 2004
Product Specification
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97
R
Spartan-3 FPGA Family: Pinout Descriptions
Table 37: FG1156 Package Pinout (Continued)
Bank
98
XC3S4000
Pin Name
XC3S5000
Pin Name
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
Bank
XC3S4000
Pin Name
XC3S5000
Pin Name
FG1156
Pin
Number
Type
N/A
GND
GND
Y15
GND
N/A
VCCINT
VCCINT
AA22
VCCINT
N/A
GND
GND
Y16
GND
N/A
VCCINT
VCCINT
AB13
VCCINT
N/A
GND
GND
Y17
GND
N/A
VCCINT
VCCINT
AB14
VCCINT
N/A
GND
GND
Y18
GND
N/A
VCCINT
VCCINT
AB15
VCCINT
N/A
GND
GND
Y19
GND
N/A
VCCINT
VCCINT
AB16
VCCINT
N/A
GND
GND
Y20
GND
N/A
VCCINT
VCCINT
AB19
VCCINT
N/A
GND
GND
Y21
GND
N/A
VCCINT
VCCINT
AB20
VCCINT
N/A
N.C. (‹)
N.C. („)
AK31
N.C.
N/A
VCCINT
VCCINT
AB21
VCCINT
N/A
VCCAUX
VCCAUX
AD30
VCCAUX
N/A
VCCINT
VCCINT
AB22
VCCINT
N/A
VCCAUX
VCCAUX
AD5
VCCAUX
N/A
VCCINT
VCCINT
AC12
VCCINT
N/A
VCCAUX
VCCAUX
AG16
VCCAUX
N/A
VCCINT
VCCINT
AC17
VCCINT
N/A
VCCAUX
VCCAUX
AG19
VCCAUX
N/A
VCCINT
VCCINT
AC18
VCCINT
N/A
VCCAUX
VCCAUX
AJ30
VCCAUX
N/A
VCCINT
VCCINT
AC23
VCCINT
N/A
VCCAUX
VCCAUX
AJ5
VCCAUX
N/A
VCCINT
VCCINT
M12
VCCINT
N/A
VCCAUX
VCCAUX
AK11
VCCAUX
N/A
VCCINT
VCCINT
M17
VCCINT
N/A
VCCAUX
VCCAUX
AK15
VCCAUX
N/A
VCCINT
VCCINT
M18
VCCINT
N/A
VCCAUX
VCCAUX
AK20
VCCAUX
N/A
VCCINT
VCCINT
M23
VCCINT
N/A
VCCAUX
VCCAUX
AK24
VCCAUX
N/A
VCCINT
VCCINT
N13
VCCINT
N/A
VCCAUX
VCCAUX
AK29
VCCAUX
N/A
VCCINT
VCCINT
N14
VCCINT
N/A
VCCAUX
VCCAUX
AK6
VCCAUX
N/A
VCCINT
VCCINT
N15
VCCINT
N/A
VCCAUX
VCCAUX
E11
VCCAUX
N/A
VCCINT
VCCINT
N16
VCCINT
N/A
VCCAUX
VCCAUX
E15
VCCAUX
N/A
VCCINT
VCCINT
N19
VCCINT
N/A
VCCAUX
VCCAUX
E20
VCCAUX
N/A
VCCINT
VCCINT
N20
VCCINT
N/A
VCCAUX
VCCAUX
E24
VCCAUX
N/A
VCCINT
VCCINT
N21
VCCINT
N/A
VCCAUX
VCCAUX
E29
VCCAUX
N/A
VCCINT
VCCINT
N22
VCCINT
N/A
VCCAUX
VCCAUX
E6
VCCAUX
N/A
VCCINT
VCCINT
P13
VCCINT
N/A
VCCAUX
VCCAUX
F30
VCCAUX
N/A
VCCINT
VCCINT
P22
VCCINT
N/A
VCCAUX
VCCAUX
F5
VCCAUX
N/A
VCCINT
VCCINT
R13
VCCINT
N/A
VCCAUX
VCCAUX
H16
VCCAUX
N/A
VCCINT
VCCINT
R22
VCCINT
N/A
VCCAUX
VCCAUX
H19
VCCAUX
N/A
VCCINT
VCCINT
T13
VCCINT
N/A
VCCAUX
VCCAUX
L30
VCCAUX
N/A
VCCINT
VCCINT
T22
VCCINT
N/A
VCCAUX
VCCAUX
L5
VCCAUX
N/A
VCCINT
VCCINT
U12
VCCINT
N/A
VCCAUX
VCCAUX
R30
VCCAUX
N/A
VCCINT
VCCINT
U23
VCCINT
N/A
VCCAUX
VCCAUX
R5
VCCAUX
N/A
VCCINT
VCCINT
V12
VCCINT
N/A
VCCAUX
VCCAUX
T27
VCCAUX
N/A
VCCINT
VCCINT
V23
VCCINT
N/A
VCCAUX
VCCAUX
T8
VCCAUX
N/A
VCCINT
VCCINT
W13
VCCINT
N/A
VCCAUX
VCCAUX
W27
VCCAUX
N/A
VCCINT
VCCINT
W22
VCCINT
N/A
VCCAUX
VCCAUX
W8
VCCAUX
N/A
VCCINT
VCCINT
Y13
VCCINT
N/A
VCCAUX
VCCAUX
Y30
VCCAUX
N/A
VCCINT
VCCINT
Y22
VCCINT
N/A
VCCAUX
VCCAUX
Y5
VCCAUX
VCCAUX CCLK
CCLK
AL31
CONFIG
N/A
VCCINT
VCCINT
AA13
VCCINT
VCCAUX DONE
DONE
AD24
CONFIG
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DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
User I/Os by Bank
Table 37: FG1156 Package Pinout (Continued)
FG1156
Pin
Number
Type
L11
CONFIG
M0
AL4
CONFIG
M1
AK4
CONFIG
VCCAUX M2
M2
AG8
CONFIG
VCCAUX PROG_B
PROG_B
D4
CONFIG
VCCAUX TCK
TCK
D31
JTAG
VCCAUX TDI
TDI
E4
JTAG
VCCAUX TDO
TDO
E31
JTAG
VCCAUX TMS
TMS
H27
JTAG
XC3S4000
Pin Name
XC3S5000
Pin Name
VCCAUX HSWAP_EN
HSWAP_EN
VCCAUX M0
VCCAUX M1
Bank
Table 38 indicates how the available user-I/O pins are distributed between the eight I/O banks for the XC3S4000 in
the FG1156 package. Similarly, Table 39 shows how the
available user-I/O pins are distributed between the eight I/O
banks for the XC3S5000 in the FG1156 package.
Table 38: User I/Os Per Bank for XC3S4000 in FG1156 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
90
79
0
2
7
2
1
90
79
0
2
7
2
2
88
80
0
2
6
0
3
88
79
0
2
7
0
4
90
73
6
2
7
2
5
90
73
6
2
7
2
6
88
79
0
2
7
0
7
88
79
0
2
7
0
Table 39: User I/Os Per Bank for XC3S5000 in FG1156 Package
Package Edge
Top
Right
Bottom
Left
All Possible I/O Pins by Type
I/O
Bank
Maximum
I/O
I/O
DUAL
DCI
VREF
GCLK
0
100
89
0
2
7
2
1
100
89
0
2
7
2
2
96
87
0
2
7
0
3
96
87
0
2
7
0
4
100
83
6
2
7
2
5
100
83
6
2
7
2
6
96
87
0
2
7
0
7
96
87
0
2
7
0
DS099-4 (v1.5) July 13, 2004
Product Specification
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99
R
Spartan-3 FPGA Family: Pinout Descriptions
FG1156 Footprint
Top Left Corner of
Package (top view)
XC3S4000
(712 max. user I/O)
I/O: Unrestricted,
621
general-purpose user I/O
XC3S5000
(784 max. user I/O)
I/O: Unrestricted,
692
general-purpose user I/O
55
VREF: User I/O or input voltage
reference for bank
73
N.C.: Unconnected pins for
XC3S4000 (‹)
56
VREF: User I/O or input voltage
reference for bank
1
N.C.: Unconnected pins for
XC3S5000 („)
Figure 16: FG1156 Package Footprint (top view)
Bank 7
1
2
3
4
5
6
7
8
9
I/O
L02P_0
GND
I/O
L05P_0
VREF_0
I/O
L34P_0
‹
I/O
L36P_0
GND
Bank 0
10
11
12
I/O
L38P_0
I/O
L40P_0
‹
I/O
L15P_0
13
14
15
16
17
GND
I/O
L22P_0
I/O
L26P_0
VREF_0
GND
I/O
L32P_0
GCLK6
A
GND
GND
I/O
L01P_0
VRN_0
B
GND
GND
I/O
L01N_0
VRP_0
I/O
L02N_0
I/O
L03P_0
I/O
L05N_0
I/O
L34N_0
‹
I/O
L36N_0
I/O
I/O
L38N_0
I/O
L40N_0
‹
I/O
L15N_0
VCCO_0
I/O
L22N_0
I/O
L26N_0
I/O
L28P_0
I/O
L32N_0
GCLK7
C
I/O
L01N_7
VRP_7
I/O
L01P_7
VRN_7
GND
VCCO_0
I/O
L03N_0
I/O
L04P_0
I/O
L33P_0
‹
VCCO_0
I/O
L08P_0
I/O
L37P_0
GND
I/O
L14P_0
I/O
L17P_0
I/O
L21P_0
I/O
L25P_0
I/O
L28N_0
I/O
L31P_0
VREF_0
D
I/O
L02N_7
I/O
L02P_7
VCCO_7 PROG_B
IO
VREF_0
I/O
L04N_0
I/O
L33N_0
‹
I/O
L35P_0
I/O
L08N_0
I/O
L37N_0
VCCO_0
I/O
L14N_0
I/O
L17N_0
I/O
L21N_0
I/O
L25N_0
VCCO_0
I/O
L31N_0
E
GND
I/O
L03N_7
VREF_7
I/O
L03P_7
TDI
GND
VCCAUX
I/O
L06P_0
I/O
L35N_0
GND
IO
VCCAUX
VREF_0
I/O
L13P_0
GND
I/O
L20P_0
VCCAUX
GND
I/O
F
I/O
L05N_7
I/O
L05P_7
I/O
L04N_7
I/O
L04P_7
VCCAUX
I/O
I/O
L06N_0
I/O
I/O
L07P_0
I/O
L10P_0
I/O
L13N_0
VCCO_0
I/O
L20N_0
I/O
L24P_0
I/O
L27P_0
I/O
L30P_0
G
I/O
I/O
I/O
L41N_7
‹
I/O
L41P_7
‹
I/O
L06N_7
I/O
L06P_7
GND
VCCO_0
I/O
L07N_0
I/O
L10N_0
I/O
I/O
L16P_0
I/O
L19P_0
I/O
L24N_0
I/O
L27N_0
I/O
L30N_0
I/O
L09P_0
VCCO_0
I/O
L12P_0
I/O
L16N_0
I/O
L19N_0
VCCO_0 VCCAUX
I/O
L29P_0
I/O
L09N_0
I/O
I/O
L12N_0
GND
IO
VREF_0
I/O
L23P_0
GND
I/O
L29N_0
‹
I/O
L11P_0
I/O
I/O
L18P_0
I/O
L23N_0
I/O
I/O
I/O
L11N_0
I/O
I/O
L18N_0
IO
VREF_0
I/O
I/O
I/O
L39P_0
‹
I/O
L39N_0
‹
H
I/O
L08N_7
I/O
L08P_7
VCCO_7
I/O
L10P_7
VREF_7
I/O
L07N_7
I/O
L07P_7
VCCO_7
I/O
I/O
J
GND
I/O
L11N_7
I/O
L11P_7
I/O
L10N_7
GND
I/O
L09N_7
I/O
L09P_7
I/O
L12P_7
I/O
K
I/O
L16N_7
I/O
L16P_7
VREF_7
I/O
L15N_7
I/O
L15P_7
I/O
L14N_7
I/O
L14P_7
I/O
L13N_7
I/O
L13P_7
I/O
L12N_7
GND
L
I/O
L19N_7
VREF_7
I/O
L19P_7
GND
VCCO_7 VCCAUX
I/O
L44N_7
‹
I/O
L44P_7
‹
VCCO_7
I/O
L17N_7
I/O
L17P_7
HSWAP_
EN
M
I/O
L45N_7
I/O
L45P_7
I/O
L23N_7
I/O
L23P_7
I/O
L22N_7
I/O
L22P_7
I/O
L21N_7
I/O
L21P_7
I/O
L24P_7
I/O
L20N_7
I/O
L20P_7
VCCINT
N
GND
VCCO_7
I/O
L25N_7
I/O
L25P_7
GND
VCCO_7
I/O
L46N_7
I/O
L46P_7
GND
I/O
L24N_7
I/O
L26P_7
VCCO_7 VCCINT
VCCINT
VCCINT
P
I/O
L49N_7
I/O
L49P_7
I/O
L29N_7
I/O
L29P_7
I/O
L28N_7
I/O
L28P_7
I/O
L27N_7
I/O
L27P_7
VREF_7
I/O
L47N_7
I/O
L47P_7
GND
‹
I/O
L26N_7
VCCO_7 VCCINT
‹
R
I/O
L32N_7
I/O
L32P_7
I/O
L31N_7
I/O
L31P_7
VCCAUX
I/O
L30N_7
I/O
L30P_7
VCCO_7
I/O
L33P_7
I/O
L50N_7
I/O
L50P_7
VCCO_7 VCCINT
T
GND
I/O
L35N_7
I/O
L35P_7
VCCO_7
GND
I/O
L34N_7
I/O
L34P_7
VCCAUX
GND
I/O
L33N_7
I/O
L51P_7
‹
U
I/O
L40N_7
VREF_7
I/O
L40P_7
I/O
L39N_7
I/O
L39P_7
I/O
L38N_7
I/O
L38P_7
I/O
L37N_7
I/O
L37P_7
VREF_7
I/O
I/O
I/O
L51N_7
‹
‹
I/O
VCCO_0 VCCO_0 VCCO_0 VCCO_0 VCCINT
VCCINT
GND
GND
GND
GND
GND
GND
GND
GND
VCCO_7 VCCINT
GND
GND
GND
GND
VCCINT
GND
GND
GND
GND
GND
DS099-4_14a_072903
100
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
Top Right Corner of
Package (top view)
All Devices
7
40
DUAL: Configuration pin, then
possible user I/O
16
CONFIG: Dedicated
configuration pins
VCCINT: Internal core voltage
supply (+1.2V)
18
I/O
19
GND
20
21
I/O
L26N_1
GND
8
GCLK: User I/O or global clock
buffer input
VCCO: Output voltage supply
for bank
4
JTAG: Dedicated JTAG port
pins
104
32
VCCAUX: Auxiliary voltage
supply (+2.5V)
184
22
I/O
L40N_1
DCI: User I/O or reference
resistor input for bank
23
24
Bank 1
25
26
I/O
L19N_1
I/O
L15N_1
I/O
L14N_1
GND
I/O
L19P_1
I/O
L15P_1
I/O
L14P_1
I/O
27
I/O
L08N_1
GND: Ground
28
I/O
L34N_1
‹
I/O
L34P_1
29
30
31
32
33
34
GND
GND
A
I/O
L05N_1
GND
I/O
L02N_1
I/O
L01N_1
VRP_1
I/O
L05P_1
I/O
L03N_1
I/O
L02P_1
I/O
L01P_1
VRN_1
GND
GND
B
I/O
L32N_1
GCLK5
I/O
L28N_1
I/O
L40P_1
I/O
L26P_1
VCCO_1
I/O
L32P_1
GCLK4
I/O
L28P_1
I/O
L39N_1
I/O
L25N_1
I/O
L22N_1
I/O
GND
I/O
L13N_1
I/O
L10N_1
VREF_1
VCCO_1
I/O
L33N_1
‹
I/O
L04N_1
I/O
L03P_1
VCCO_1
GND
I/O
L01N_2
VRP_2
I/O
L01P_2
VRN_2
C
I/O
L31N_1
VREF_1
VCCO_1
I/O
L39P_1
I/O
L25P_1
I/O
L22P_1
I/O
L18N_1
VCCO_1
I/O
L13P_1
I/O
L10P_1
I/O
L07N_1
I/O
L33P_1
‹
I/O
L04P_1
IO
VREF_1
TCK
VCCO_2
I/O
L02N_2
I/O
L02P_2
D
I/O
L31P_1
GND
VCCAUX
I/O
GND
I/O
L18P_1
VCCAUX
I/O
GND
I/O
L07P_1
I/O
L06N_1 VCCAUX
VREF_1
GND
TDO
I/O
L03N_2
VREF_2
I/O
L03P_2
GND
E
I/O
I/O
L27N_1
I/O
L38N_1
I/O
L24N_1
VCCO_1
I/O
L17N_1
VREF_1
I/O
L36N_1
‹
I/O
L12N_1
I/O
L09N_1
I/O
I/O
L06P_1
I/O
VCCAUX
I/O
L04N_2
I/O
L04P_2
I/O
L41N_2
I/O
L41P_2
F
I/O
L30N_1
I/O
L27P_1
I/O
L38P_1
I/O
L24P_1
I/O
L21N_1
I/O
L17P_1
I/O
L36P_1
‹
I/O
L12P_1
I/O
L09P_1
VCCO_1
GND
I/O
L05N_2
I/O
L05P_2
I/O
L42N_2
I/O
L42P_2
I/O
I/O
G
‹
‹
I/O
L23N_1
I/O
L21P_1
I/O
VCCO_1
I/O
L11N_1
I/O
TMS
VCCO_2
I/O
L06N_2
I/O
L06P_2
I/O
L09N_2
VREF_2
VCCO_2
I/O
L07N_2
I/O
L07P_2
H
I/O
L37N_1
I/O
L23P_1
GND
I/O
L16N_1
I/O
L35N_1
‹
I/O
L11P_1
I/O
I/O
L11N_2
I/O
L08N_2
I/O
L08P_2
GND
I/O
L09P_2
I/O
L10N_2
I/O
L10P_2
GND
J
I/O
L37P_1
IO
VREF_1
I/O
L20N_1
I/O
L16P_1
I/O
L13P_2
VREF_2
I/O
L14N_2
I/O
L14P_2
I/O
L15N_2
I/O
L15P_2
K
I/O
I/O
I/O
L20P_1
I/O
GND
I/O
L45N_2
I/O
L45P_2
L
I/O
L30P_1
VCCAUX VCCO_1
I/O
L29N_1
GND
I/O
L29P_1
I/O
IO
VREF_1
I/O
VCCINT
GND
GND
‹
VCCO_1 VCCO_1 VCCO_1 VCCO_1 VCCINT
VCCINT VCCINT
GND
GND
VCCINT
GND
I/O
L35P_1
I/O
L11P_2
I/O
L12N_2
I/O
L12P_2
I/O
L13N_2
I/O
L16N_2
I/O
L16P_2
VCCO_2
I/O
L17N_2
I/O
L17P_2
VREF_2 VCCAUX VCCO_2
‹
I/O
L46N_2
I/O
L46P_2
I/O
L21N_2
I/O
L47N_2
I/O
L47P_2
I/O
L19N_2
I/O
L19P_2
I/O
L20N_2
I/O
L20P_2
I/O
L48N_2
I/O
L48P_2
M
I/O
L21P_2
GND
I/O
L22N_2
I/O
L22P_2
VCCO_2
GND
I/O
L23N_2
VREF_2
I/O
L23P_2
VCCO_2
GND
N
I/O
L49N_2
I/O
L49P_2
‹
I/O
L50N_2
I/O
L50P_2
I/O
L26N_2
I/O
L26P_2
I/O
L27N_2
I/O
L27P_2
I/O
L28N_2
I/O
L28P_2
P
‹
I/O
L29P_2
I/O
L33N_2
VCCO_2
I/O
L30N_2
I/O
L30P_2
VCCAUX
I/O
L31N_2
I/O
L31P_2
I/O
L32N_2
I/O
L32P_2
R
I/O
L33P_2
GND
VCCAUX
I/O
L34N_2
VREF_2
I/O
L34P_2
GND
VCCO_2
I/O
L35N_2
I/O
L35P_2
GND
T
I/O
I/O
I/O
L37N_2
I/O
L37P_2
I/O
L38N_2
I/O
L38P_2
I/O
L39N_2
I/O
L39P_2
I/O
L40N_2
I/O
L40P_2
VREF_2
U
‹
I/O
VCCO_2
I/O
L24N_2
VCCINT
VCCO_2
I/O
L24P_2
GND
GND
GND
VCCINT
VCCO_2
GND
GND
GND
GND
VCCINT
VCCO_2
I/O
L29N_2
I/O
L51N_2
‹
GND
GND
GND
GND
GND
VCCINT
‹
GND
VCCINT
GND
‹
I/O
L08P_1
I/O
L51P_2
‹
‹
Bank 2
12
DS099-4_14b_072903
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
101
R
Spartan-3 FPGA Family: Pinout Descriptions
Bank 6
1
2
3
4
10
11
I/O
I/O
I/O
L49P_6
‹
VCCINT
VCCAUX
GND
I/O
L35P_6
I/O
L49N_6
‹
I/O
L48N_6
VCCO_6
I/O
L35N_6
I/O
L32P_6
I/O
L29N_6
I/O
L28P_6
I/O
L28N_6
I/O
L46P_6
‹
GND
VCCO_6
I/O
L25P_6
I/O
L25N_6
I/O
L22P_6
I/O
L22N_6
I/O
L21P_6
I/O
L44P_6
I/O
L44N_6
‹
‹
I/O
L14N_6
I/O
L13P_6
VREF_6
I/O
L09P_6
I/O
L09N_6
VREF_6
I/O
L12N_6
I/O
5
6
7
13
14
15
16
17
GND
GND
GND
GND
GND
VCCO_6 VCCINT
GND
GND
GND
GND
I/O
L32N_6
VCCO_6 VCCINT
GND
GND
GND
GND
I/O
L46N_6
‹
I/O
L27P_6
VCCO_6 VCCINT
GND
GND
GND
GND
GND
I/O
L24P_6
I/O
L27N_6
VCCO_6 VCCINT
VCCINT
VCCINT
I/O
L21N_6
I/O
L24N_6
VREF_6
I/O
L20P_6
I/O
L20N_6
VCCINT
VCCO_6
I/O
L17P_6
VREF_6
I/O
L17N_6
I/O
I/O
L13N_6
I/O
L12P_6
GND
8
V
I/O
L40P_6
VREF_6
I/O
L40N_6
I/O
L39P_6
I/O
L39N_6
I/O
L38P_6
I/O
L38N_6
I/O
L52P_6
I/O
L52N_6
W
GND
I/O
L37P_6
I/O
L37N_6
VCCO_6
GND
I/O
L36P_6
I/O
L36N_6
Y
I/O
L34P_6
I/O
L34N_6
VREF_6
I/O
L33P_6
I/O
L33N_6
VCCAUX
I/O
L48P_6
A
A
I/O
L31P_6
I/O
L31N_6
I/O
L30P_6
I/O
L30N_6
I/O
L29P_6
A
B
GND
VCCO_6
I/O
L26P_6
I/O
L26N_6
A
C
I/O
L23P_6
I/O
L23N_6
I/O
L45P_6
I/O
L45N_6
A
D
I/O
L19P_6
I/O
L19N_6
GND
A
E
I/O
L16P_6
I/O
L16N_6
I/O
L15P_6
A
F
GND
A
G
VCCO_6 VCCAUX
I/O
L15N_6
I/O
L14P_6
9
I/O
L39P_5
‹
I/O
L39N_5
12
I/O
VCCINT
GND
VCCO_5 VCCO_5 VCCO_5 VCCO_5 VCCINT
‹
I/O
L16P_5
I/O
I/O
I/O
I/O
I/O
L12P_5
I/O
L16N_5
I/O
I/O
L23P_5
I/O
I/O
L29P_5
VREF_5
I/O
L12N_5
GND
I/O
L19P_5
VREF_5
I/O
L23N_5
GND
I/O
L29N_5
I/O
L11P_6
I/O
L11N_6
I/O
L10P_6
GND
I/O
L08P_6
I/O
L08N_6
VCCO_6
I/O
L10N_6
I/O
L07P_6
I/O
L07N_6
VCCO_6
M2
I/O
I/O
L07N_5
VCCO_5
I/O
I/O
L17P_5
I/O
L19N_5
VCCO_5 VCCAUX
I/O
L30P_5
A
H
I/O
I/O
I/O
L41P_6
I/O
L41N_6
VCCO_5
‹
I/O
L06N_6
GND
‹
I/O
L06P_6
I/O
L37P_5
I/O
L08P_5
I/O
L40P_5
‹
I/O
L13P_5
I/O
L17N_5
I/O
L20P_5
I/O
L24P_5
I/O
L27P_5
I/O
L30N_5
A
J
I/O
L05P_6
I/O
L05N_6
I/O
L04P_6
I/O
L04N_6
VCCAUX
I/O
I/O
L06P_5
IO
VREF_5
I/O
L37N_5
I/O
L08N_5
I/O
L40N_5
‹
I/O
L13N_5
VCCO_5
I/O
L20N_5
I/O
L24N_5
I/O
L27N_5
VREF_5
I/O
A
K
GND
I/O
L03P_6
I/O
L03N_6
VREF_6
M1
GND
VCCAUX
I/O
L06N_5
I/O
L35P_5
GND
I/O
VCCAUX
I/O
L14P_5
GND
I/O
VCCAUX
GND
I/O
L31P_5
D5
A
L
I/O
L02P_6
I/O
L02N_6
VCCO_6
M0
IO
VREF_5
I/O
L04P_5
I/O
L35N_5
I/O
L38P_5
I/O
L09P_5
VCCO_5
I/O
L14N_5
I/O
L18P_5
I/O
L21P_5
I/O
L25P_5
VCCO_5
I/O
L31N_5
D4
VCCO_5
I/O
L38N_5
I/O
L09N_5
GND
I/O
I/O
L18N_5
I/O
L21N_5
I/O
L25N_5
I/O
L28P_5
D7
I/O
L32P_5
GCLK2
I/O
L36P_5
I/O
I/O
L10P_5
VRN_5
I/O
L11P_5
I/O
L15P_5
VCCO_5
I/O
L22P_5
I/O
L26P_5
I/O
L28N_5
D6
I/O
L32N_5
GCLK3
I/O
L36N_5
GND
I/O
L10N_5
VRP_5
I/O
L11N_5
VREF_5
I/O
L15N_5
GND
I/O
L22N_5
I/O
L26N_5
GND
IO
VREF_5
A
M
A
N
A
P
I/O
L01P_6
VRN_6
GND
GND
I/O
L01N_6
VRP_6
GND
GND
I/O
L01P_5
CS_B
GND
I/O
L01N_5
RDWR_B
VCCO_5
I/O
L02P_5
I/O
L02N_5
I/O
L03P_5
I/O
L03N_5
GND
I/O
L04N_5
I/O
L05P_5
I/O
L05N_5
I/O
L33P_5
‹
I/O
L33N_5
‹
I/O
L34P_5
‹
I/O
L34N_5
‹
I/O
L07P_5
‹
Bank 5
‹
DS099-4_14c_072503
Bottom Left Corner of
Package (top view)
102
www.xilinx.com
1-800-255-7778
DS099-4 (v1.5) July 13, 2004
Product Specification
R
GND
19
GND
20
GND
21
GND
22
GND
23
24
VCCINT
I/O
L51N_3
25
26
GND
GND
GND
VCCINT
VCCO_3
I/O
L51P_3
‹
GND
GND
GND
GND
VCCINT
VCCO_3
I/O
L50P_3
GND
GND
GND
GND
VCCINT
VCCO_3
I/O
L48N_3
GND
VCCINT
VCCINT VCCINT
VCCINT
VCCINT
VCCO_4 VCCO_4 VCCO_4 VCCO_4
28
29
30
31
32
33
34
V
I/O
I/O
I/O
L37P_3
I/O
L37N_3
I/O
L38P_3
I/O
L38N_3
I/O
L39P_3
I/O
L39N_3
I/O
L40P_3
I/O
L40N_3
VREF_3
I/O
L33N_3
GND
VCCAUX
I/O
L34P_3
VREF_3
I/O
L34N_3
GND
VCCO_3
I/O
L35P_3
I/O
L35N_3
GND
W
I/O
L50N_3
I/O
L33P_3
VCCO_3
I/O
L30P_3
I/O
L30N_3
VCCAUX
I/O
L31P_3
I/O
L31N_3
I/O
L32P_3
I/O
L32N_3
Y
I/O
L49P_3
I/O
L49N_3
‹
‹
I/O
L26P_3
I/O
L26N_3
I/O
L27P_3
I/O
L27N_3
I/O
L28P_3
I/O
L28N_3
I/O
L29P_3
I/O
L29N_3
A
A
‹
GND
27
VCCO_3
I/O
L48P_3
I/O
L24N_3
GND
I/O
L46P_3
I/O
L46N_3
VCCO_3
GND
I/O
L47P_3
I/O
L47N_3
VCCO_3
GND
A
B
VCCINT
I/O
L20P_3
I/O
L20N_3
I/O
L24P_3
I/O
L21P_3
I/O
L21N_3
I/O
L22P_3
I/O
L22N_3
I/O
L23P_3
VREF_3
I/O
L23N_3
I/O
L45P_3
I/O
L45N_3
A
C
DONE
I/O
L17P_3
VREF_3
I/O
L17N_3
VCCO_3
I/O
L44P_3
‹
I/O
L44N_3
‹
GND
I/O
L19P_3
I/O
L19N_3
A
D
GND
I/O
L12N_3
I/O
L13P_3
I/O
L13N_3
VREF_3
I/O
L14P_3
I/O
L14N_3
I/O
L15P_3
I/O
L15N_3
I/O
L16P_3
I/O
L16N_3
A
E
I/O
‹
I/O
L12P_3
I/O
L09P_3
VREF_3
I/O
L09N_3
GND
I/O
L10N_3
I/O
L11P_3
I/O
L11N_3
GND
A
F
I/O
L10P_3
VCCO_3
I/O
L08P_3
I/O
L08N_3
A
G
I/O
L41P_3
I/O
L41N_3
I/O
I/O
‹
‹
A
H
I/O
I/O
I/O
I/O
L18N_4
I/O
I/O
L11N_4
I/O
I/O
I/O
L23N_4
I/O
L18P_4
I/O
I/O
L11P_4
I/O
L29N_4
GND
I/O
L23P_4
IO
VREF_4
GND
I/O
L12N_4
I/O
I/O
L07N_4
I/O
L19N_4
I/O
L16N_4
I/O
L12P_4
VCCO_4
I/O
L07P_4
I/O
I/O
VCCO_3
I/O
L07P_3
I/O
L07N_3
I/O
L19P_4
I/O
L16P_4
IO
VREF_4
I/O
L39N_4
‹
I/O
L08N_4
I/O
L05N_4
VCCO_4
GND
I/O
L06P_3
I/O
L06N_3
I/O
L08P_4
I/O
L05P_4
I/O
I/O
L35N_4
I/O
VCCAUX
I/O
L04P_3
I/O
L04N_3
I/O
L05P_3
I/O
L05N_3
A
J
N.C.
‹
„
I/O
L03P_3
I/O
L03N_3
GND
A
K
VCCO_3
I/O
L02P_3
I/O
L02N_3
VREF_3
A
L
I/O
L29P_4
VCCAUX VCCO_4
I/O
‹
VCCAUX VCCO_3
I/O
L30N_4
D2
I/O
L27N_4
DIN
D0
I/O
L30P_4
D3
I/O
L27P_4
D1
I/O
L24P_4
I/O
L20N_4
VCCO_4
I/O
L13N_4
I/O
L39P_4
‹
IO
VREF_4
GND
VCCAUX
I/O
L20P_4
GND
I/O
L13P_4
VCCAUX
I/O
GND
I/O
L38N_4
I/O
L35P_4
VCCAUX
GND
I/O
L31N_4
INIT_B
VCCO_4
I/O
L25N_4
I/O
L21N_4
I/O
L17N_4
I/O
L14N_4
VCCO_4
I/O
L09N_4
I/O
L06N_4
VREF_4
I/O
L38P_4
I/O
L36N_4
‹
I/O
L33N_4
IO
VREF_4
I/O
L31P_4
DOUT
BUSY
I/O
L28N_4
I/O
L25P_4
I/O
L21P_4
I/O
L17P_4
I/O
L14P_4
GND
I/O
L09P_4
I/O
L06P_4
VCCO_4
I/O
L36P_4
‹
I/O
L33P_4
I/O
L03N_4
VCCO_4
GND
I/O
L01P_3
VRN_3
I/O
L01N_3
VRP_3
A
M
I/O
L32N_4
GCLK1
I/O
L28P_4
I/O
L26N_4
I/O
L22N_4
VREF_4
VCCO_4
I/O
L15N_4
I/O
L40N_4
‹
I/O
L10N_4
I/O
I/O
L04N_4
I/O
L37N_4
‹
I/O
L34N_4
I/O
L03P_4
I/O
L02N_4
I/O
L01N_4
VRP_4
GND
GND
A
N
I/O
L32P_4
GCLK0
GND
I/O
L26P_4
VREF_4
I/O
L22P_4
GND
I/O
L15P_4
I/O
L10P_4
GND
I/O
L04P_4
I/O
L34P_4
GND
I/O
L02P_4
I/O
L01P_4
VRN_4
GND
GND
A
P
I/O
L24N_4
I/O
L40P_4
‹
Bank 4
I/O
L37P_4
‹
CCLK
Bank 3
18
Spartan-3 FPGA Family: Pinout Descriptions
DS099-4_14d_072903
Bottom Right Corner
of Package (top view)
DS099-4 (v1.5) July 13, 2004
Product Specification
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R
Spartan-3 FPGA Family: Pinout Descriptions
Revision History
Date
Version No.
Description
04/03/03
1.0
Initial Xilinx release.
04/21/03
1.1
Added information on the VQ100 package footprint, including a complete pinout table
(Table 16) and footprint diagram (Figure 8).
Updated Table 15 with final I/O counts for the VQ100 package. Also added final differential I/O
pair counts for the TQ144 package.
Added clarifying comments to HSWAP_EN pin description on page 13.
Updated the footprint diagram for the FG900 package shown in Figure 15a and Figure 15b.
Some thick lines separating I/O banks were incorrect.
Made cosmetic changes to Figure 1, Figure 3, and Figure 4.
Updated Xilinx hypertext links.
Added XC3S200 and XC3S400 to Pin Name column in Table 18.
05/12/03
1.1.1
AM32 pin was missing GND label in FG1156 package diagram (Figure 16).
07/11/03
1.1.2
Corrected misspellings of GCLK in Table 1 and Table 2. Changed CMOS25 to LVCMOS25 in
Dual-Purpose Pin I/O Standard During Configuration section. Clarified references to
Module 2. For XC3S5000 in FG1156 package, corrected N.C. symbol to a black square in
Table 37, key, and package drawing.
07/29/03
1.2
Corrected pin names on FG1156 package. Some package balls incorrectly included LVDS pair
names. The affected balls on the FG1156 package include G1, G2, G33, G34, U9, U10, U25,
U26, V9, V10, V25, V26, AH1, AH2, AH33, AH34. The number of LVDS pairs is unaffected.
Modified affected balls and re-sorted rows in Table 37. Updated affected balls in Figure 16.
Also updated ASCII and Excel electronic versions of FG1156 pinout.
08/19/03
1.2.1
Removed 100 MHz ConfigRate option in CCLK: Configuration Clock section and in Table 11.
Added note that TDO is a totem-pole output in Table 9.
10/09/03
1.2.2
Some pins had incorrect bank designations and were improperly sorted in Table 20. No pin
names or functions changed. Renamed DCI_IN to DCI and added black diamond to N.C. pins
in Table 20. In Figure 10, removed some extraneous text from pin 106 and corrected spelling
of pins 45, 48, and 81.
12/17/03
1.3
Added FG320 pin tables and pinout diagram (FG320: 320-lead Fine-pitch Ball Grid Array).
Made cosmetic changes to the TQ144 footprint (Figure 9), the PQ208 footprint (Figure 10), the
FG676 footprint (Figure 14), and the FG900 footprint (Figure 15). Clarified wording in
Precautions When Using the JTAG Port in 3.3V Environments section.
02/27/04
1.4
Clarified wording in Using JTAG Port After Configuration section. In Table 12, reduced
package height for FG320 and increased maximum I/O values for the FG676, FG900, and
FG1156 packages.
07/13/04
1.5
Added information on lead-free (Pb-free) package options to the Package Overview section
plus Table 12 and Table 13. Clarified the VRN_# reference resistor requirements for I/O
standards that use single termination as described in the DCI Termination Types section and
in Figure 3b. Graduated from Advance Product Specification to Product Specification.
104
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Product Specification
R
Spartan-3 FPGA Family: Pinout Descriptions
The Spartan-3 Family Data Sheet
DS099-1, Spartan-3 FPGA Family: Introduction and Ordering Information (Module 1)
DS099-2, Spartan-3 FPGA Family: Functional Description (Module 2)
DS099-3, Spartan-3 FPGA Family: DC and Switching Characteristics (Module 3)
DS099-4, Spartan-3 FPGA Family: Pinout Descriptions (Module 4)
DS099-4 (v1.5) July 13, 2004
Product Specification
www.xilinx.com
1-800-255-7778
105