ATMEL ATF1508AS

Features
• High Density, High Performance Electrically Erasable Complex
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Programmable Logic Device
– 128 Macrocells
– 5 Product Terms per Macrocell, Expandable up to 40 per Macrocell
– 68, 84, 100, 160-pins
– 7.5 ns Maximum Pin-to-Pin Delay
– Registered Operation Up To 125 MHz
– Enhanced Routing Resources
Flexible Logic Macrocell
– D/T/Latch Configurable Flip Flops
– Global and Individual Register Control Signals
– Global and Individual Output Enable
– Programmable Output Slew Rate
– Programmable Output Open Collector Option
– Maximum Logic utilization by burying a register within a COM output
Advanced Power Management Features
– Automatic 100 µA Stand-By for “Z” Version (Max.)
– Pin-Controlled 100 µA Stand-By Mode (Typical)
– Programmable Pin-Keeper Inputs and I/Os
– Reduced-Power Feature Per Macrocell
Available in Commercial and Industrial Temperature Ranges
Available in 84-pin PLCC and 100-pin PQFP and TQFP and
160-pin PQFP Packages
Advanced Flash Technology
– 100% Tested
– Completely Reprogrammable
– 100 Program/Erase Cycles
– 20 Year Data Retention
– 2000V ESD Protection
– 200 mA Latch-Up Immunity
JTAG Boundary-Scan Testing to IEEE Std. 1149.1-1990 and 1149.1a-1993 Supported
Fast In-System Programmability (ISP) via JTAG
PCI-compliant
3.3 or 5.0V I/O pins
Security Fuse Feature
High
Performance
E2 PLD
ATF1508AS/Z
Enhanced Features
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Improved Connectivity (Additional Feedback Routing, Alternate Input Routing)
Output Enable Product Terms
D - Latch Mode
Combinatorial Output with Registered Feedback within any Macrocell
Three Global Clock Pins
ITD ( Input Transition Detection) Circuits on Global Clocks, Inputs and I/O
Fast Registered Input from Product Term
Programmable “Pin-Keeper” Option
VCC Power-Up Reset Option
Pull-Up Option on JTAG Pins TMS and TDI
Advanced Power Management Features
– Edge Controlled Power Down “Z”
– Individual Macrocell Power Option
– Disable ITD on Global Clocks, Inputs and I/O for “Z” Parts
Rev. 0784C–4/98
1
100-Lead TQFP
Top View
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I/O
I/O
GND
I/O/TDO
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O/TCK
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O/PD1
I/O
VCCIO
I/O/TDI
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O/TMS
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
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I/O
GND
I/O/TDO
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O/TCK
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
GND
VCCINT
I/O
I/O/PD2
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
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I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
GND
VCCINT
I/O
I/O/PD2
I/O
GND
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O/PD1
VCCIO
I/O/TDI
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O/TMS
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
GND
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1
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I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
VCCINT
INPUT/OE2/GCLK2
INPUT/GCLR
INPUT/OE1
INPUT/GCLK1
GND
I/O/GCLK3
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
VCCINT
INPUT/OE2/GCLK2
INPUT/GCLR
INPUT/OE1
INPUT/GCLK1
GND
I/O/GCLK3
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
I/O
84-Lead PLCC
Top View
160-Lead PQFP
Top View
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I/O
I/O/PD2
I/O
N/C
N/C
N/C
N/C
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
VCCINT
INPUT/OE2/GCLK2
INPUT/GCLR
INPUT/OE1
INPUT/GCLK1
GND
I/O/GCLK3
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
N/C
N/C
N/C
N/C
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
VCCINT
INPUT/OE2/GCLK2
INPUT/GCLR
INPUT/OE1
INPUT/GCLK1
GND
I/O/GCLK3
I/O
I/O
VCCIO
I/O
I/O
I/O
100-Lead PQFP
Top View
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I/O
I/O
I/O
I/O
GND
I/O/TDO
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O/TCK
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
N/C
N/C
N/C
N/C
N/C
N/C
N/C
VCCIO
I/O/TDI
I/O
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O/TMS
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
N/C
N/C
N/C
N/C
N/C
N/C
N/C
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I/O
GND
I/O
N/C
N/C
N/C
N/C
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
GND
VCCINT
I/O
I/O/PD1
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
N/C
N/C
N/C
N/C
I/O
VCCIO
I/O
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I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
GND
VCCINT
I/O
I/O/PD2
I/O
GND
I/O
I/O
I/O
I/O
I/O
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41
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50
I/O
I/O
I/O/PD1
I/O
VCCIO
I/O/TDI
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O/TMS
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
2
ATF1508AS/Z
N/C
N/C
N/C
N/C
N/C
N/C
N/C
GND
I/O/TDO
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO
I/O
I/O
I/O
I/O
I/O/TCK
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
I/O
N/C
N/C
N/C
N/C
N/C
N/C
N/C
ATF1508AS/Z
Block Diagram
6 to 12
3
Description
The ATF1508AS is a high performance, high density Complex Programmable Logic Device (CPLD) which utilizes
Atmel’s proven electrically erasable Flash memory technology. With 128 logic macrocells and up to 100 inputs, it easily integrates logic from several TTL, SSI, MSI, LSI and
classic PLDs. The ATF1508AS’s enhanced routing switch
matrices increase usable gate count, and increase odds of
successful pin-locked design modifications.
The ATF1508AS has up to 96 bi-directional I/O pins and 4
dedicated input pins, depending on the type of device package selected. Each dedicated pin can also serve as a global control signal; register clock, register reset or output
enable. Each of these control signals can be selected for
use individually within each macrocell.
Each of the 128 macrocells generates a buried feedback,
which goes to the global bus. Each input and I/O pin also
feeds into the global bus. The switch matrix in each logic
block then selects 40 individual signals from the global bus.
Each macrocell also generates a foldback logic term, which
goes to a regional bus. Cascade logic between macrocells
in the ATF1508AS allows fast, efficient generation of complex logic functions. The ATF1508AS contains eight such
logic chains, each capable of creating sum term logic with a
fan in of up to 40 product terms
The ATF1508AS macrocell, shown in Figure 1, is flexible
enough to support highly complex logic functions operating
at high speed. The macrocell consists of five sections:
product terms and product term select multiplexer;
OR/XOR/CASCADE logic; a flip-flop; output select and
enable; and logic array inputs.
Unused Macrocells are automatically disabled by the compiler to decrease power consumption. A Security Fuse,
when programmed, protects the contents of the
ATF1508AS. Two bytes (16 bits) of User Signature are
accessible to the user for purposes such as storing project
name, part number, revision or date. The User Signature is
accessible regardless of the state of the Security Fuse.
The ATF1508AS device is an In-System Programmable
(ISP) device. It uses the industry standard 4-pin JTAG
interface (IEEE Std. 1149.1), and is fully compliant with
JTAG’s Boundary Scan Description Language (BSDL). ISP
allows the device to be programmed without removing it
from the printed circuit board. In addition to simplifying the
manufacturing flow, ISP also allows design modifications to
be made in the field via software.
Product Terms and Select MUX
Each ATF1508AS macrocell has five product terms. Each
product term receives as its inputs all signals from both the
global bus and regional bus.
The product term select multiplexer (PTMUX) allocates the
five product terms as needed to the macrocell logic gates
4
ATF1508AS/Z
and control signals. The PTMUX programming is determined by the design compiler, which selects the optimum
macrocell configuration.
OR/XOR/CASCADE Logic
The ATF1508AS’s logic structure is designed to efficiently
support all types of logic. Within a single macrocell, all the
product terms can be routed to the OR gate, creating a 5input AND/OR sum term. With the addition of the CASIN
from neighboring macrocells, this can be expanded to as
many as 40 product terms with a very small additional
delay.
The macrocell’s XOR gate allows efficient implementation
of compare and arithmetic functions. One input to the XOR
comes from the OR sum term. The other XOR input can be
a product term or a fixed high or low level. For combinatorial outputs, the fixed level input allows polarity selection.
For registered functions, the fixed levels allow DeMorgan
minimization of product terms. The XOR gate is also used
to emulate T- and JK-type flip-flops.
Flip Flop
The ATF1508AS’s flip flop has very flexible data and control functions. The data input can come from either the
XOR gate, from a separate product term or directly from
the I/O pin. Selecting the separate product term allows creation of a buried registered feedback within a combinatorial
output macrocell. (This feature is automatically implemented by the fitter software). In addition to D, T, JK and
SR operation, the flip flop can also be configured as a flowthrough latch. In this mode, data passes through when the
clock is high and is latched when the clock is low.
The clock itself can either be the Global CLK Signal (GCK)
or an individual product term. The flip flop changes state on
the clock's rising edge. When the GCK signal is used as
the clock, one of the macrocell product terms can be
selected as a clock enable. When the clock enable function
is active and the enable signal (product term) is low, all
clock edges are ignored. The flip flop’s asynchronous reset
signal (AR) can be either the Global Clear (GCLEAR), a
product term, or always off. AR can also be a logic OR of
GCLEAR with a product term. The asynchronous preset
(AP) can be a product term or always off.
Output Select and Enable
The ATF1508AS macrocell output can be selected as registered or combinatorial. The buried feedback signal can be
either combinatorial or registered signal regardless of
whether the output is combinatorial or registered.
The output enable multiplexer (MOE) controls the output
enable signals. Any buffer can be permanently enabled for
simple output operation. Buffers can also be permanently
disabled to allow use of the pin as an input. In this configuration all the macrocell resources are still available, includ-
ATF1508AS/Z
ing the buried feedback, expander and CASCADE logic.
The output enable for each macrocell can be selected as
one of the global OUTPUT enable signals. The device has
six global OE signals.
Global Bus/Switch Matrix
The global bus contains all input and I/O pin signals as well
as the buried feedback signal from all 128 macrocells.
The Switch Matrix in each Logic Block receives as its inputs
all signals from the global bus. Under software control, up
to 40 of these signals can be selected as inputs to the
Logic Block.
Foldback Bus
Each macrocell also generates a foldback product term.
This signal goes to the regional bus and is available to 16
macrocells. The foldback is an inverse polarity of one of the
macrocell’s product terms. The 16 foldback terms in each
region allows generation of high fan-in sum terms (up to 21
product terms) with a small additional delay.
3.3V or 5.0V I/O Operation
The ATF1508AS device has two sets of V CC pins viz,
VCCINT and VCCIO. VCCINT pins must always be connected to
a 5.0V power supply. VCCINT pins are for input buffers and
are “compatible” with both 3.3V and 5.0V inputs. VCCIO pins
are for I/O output drives and can be connected for 3.3/5.0V
power supply.
Open-Collector Output Option
This option enables the device output to provide control
signals such as an interrupt that can be asserted by any of
the several devices.
5
Figure 1. ATF1508AS Macrocell
Programmable Pin-Keeper Option
for Inputs and I/Os
Speed/Power Management
The ATF1508AS offers the option of programming all input
and I/O pins so that “pin keeper” circuits can be utilized.
When any pin is driven high or low and then subsequently
left floating, it will stay at that previous high or low level.
This circuitry prevents unused input and I/O lines from
floating to intermediate voltage levels, which cause unnecessary power consumption and system noise. The keeper
circuits eliminate the need for external pull-up resistors and
eliminate their DC power consumption.
The ATF1508AS has several built-in speed and power
management features. The ATF1508AS contains circuitry
that automatically puts the device into a low power standby mode when no logic transitions are occurring. This not
only reduces power consumption during inactive periods,
but also provides a proportional power savings for most
applications running at system speeds below 5 - 10 MHz.
To further reduce power, each ATF1508AS macrocell has
a Reduced Power bit feature. This feature allows individual
macrocells to be configured for maximum power savings.
This feature may be selected as a design option.
Input Diagram
I/O Diagram
6
ATF1508AS/Z
ATF1508AS/Z
All ATF1508s also have an optional power down mode. In
this mode, current drops to below 10 mA. When the power
down option is selected, either PD1 or PD2 pins (or both)
can be used to power down the part. The power down
option is selected in the design source file. When enabled,
the device goes into power down when either PD1 or PD2
is high. In the power down mode, all internal logic signals
are latched and held, as are any enabled outputs.
All pin transitions are ignored until the PD pin is brought
low. When the power down feature is enabled, the PD1 or
PD2 pin cannot be used as a logic input or output. However, the pin’s macrocell may still be used to generate buried foldback and cascade logic signals.
All Power-Down AC Characteristic parameters are computed from external input or I/O pins, with Reduced Power
Bit turned on. For macrocells in reduced-power mode
(Reduced power bit turned on), the reduced power adder,
tRPA, must be added to the AC parameters, which include
the data paths tLAD, tLAC, tIC, tACL, tACH and tSEXP.
Each output also has individual slew rate control. This may
be used to reduce system noise by slowing down outputs
that do not need to operate at maximum speed. Outputs
default to slow switching, and may be specified as fast
switching in the design file.
Design Software Support
ATF1508AS designs are supported by several third party
tools. Automated fitters allow logic synthesis using a variety
of high level description languages and formats.
Power Up Reset
The ATF1508AS has a power-up reset option at two different voltage trip levels when the device is being powered
down. Within the fitter, or during a conversion, if the
“power-reset” option is turned “on” ( which is the default
option), the trip levels during power up or power down is at
2.8V. The user can change this default option from “on” to
“off” (within the fitter or specify it as a switch during conversion). When this is done, the voltage trip level during
power-down changes from 2.8V to 0.7V. This is to ensure a
robust operating environment.
The registers in the ATF1508AS are designed to reset during power up. At a point delayed slightly from VCC crossing
VRST, all registers will be reset to the low state. The output
state will depend on the polarity of the buffer.
This feature is critical for state machine initialization. However, due to the asynchronous nature of reset and the
uncertainty of how VCC actually rises in the system, the following conditions are required:
1. The VCC rise must be monotonic,
2. After reset occurs, all input and feedback setup times
must be met before driving the clock pin high, and,
3. The clock must remain stable during TPR.
Security Fuse Usage
A single fuse is provided to prevent unauthorized copying
of the ATF1508AS fuse patterns. Once programmed, fuse
verify is inhibited. However, User Signature and device ID
remains accessible.
Programming
ATF1508AS devices are In-System Programmable (ISP)
devices utilizing the 4-pin JTAG protocol. This capability
eliminates package handling normally required for program
and facilitates rapid design iterations and field changes.
Atmel provides ISP hardware and software to allow programming of the ATF1508AS via the PC. ISP is perfomed
by using either a download cable, or a comparable board
tester or a simple microprocessor interface.
To facilitate ISP programming by the Automated Test
Equipment (ATE) vendors, Serial Vector Format (SVF)
files can be created by Atmel provided Software utilities.
ATF1508AS devices can also be programmed using standard 3rd party programmers. With 3rd party programmer
the JTAG ISP port can be disabled thereby allowing 4 additional I/O pins to be used for logic.
Contact your local Atmel representatives or Atmel PLD
applications for details.
ISP Programming Protection
The ATF1508AS has a special feature which locks the
device and prevents the inputs and I/O from driving if the
programming process is interrupted due to any reason. The
inputs and I/O default to high-Z state during such a condition. In addition the pin keeper option preserves the former
state during device programming.
All ATF1508AS devices are initially shipped in the erased
state thereby making them ready to use for ISP.
Note:
For more information refer to the “Desigining for In-System Programmability with Atmel CPLDs” application
note.
7
DC and AC Operating Conditions
Commercial
Industrial
0°C - 70°C
-40°C - 85°C
5V ± 5%
5V ± 10%
2.7V - 3.6V
2.7V - 3.6V
Operating Temperature (Case)
VCCINT or VCCIO (5V) Power Supply
VCCIO (3.3V) Power Supply
DC Characteristics
Symbol
Parameter
IIL
Input or I/O Low
Leakage Current
IIH
Input or I/O High
Leakage Current
IOZ
Tri-State Output
Off-State Current
Condition
Min
VIN = VCC
VO = VCC or GND
Power Supply
Current, Stand-by
Max
Units
-2
-10
µA
2
10
µA
40
µA
-40
Std Mode
ICC1
Typ
VCC = Max
VIN = 0, VCC
Com.
160
mA
Ind.
180
mA
Com.
100
µA
Ind.
140
µA
100
µA
-150
mA
“Z” Mode
ICC2
Power Supply Current,
Power Down Mode
VCC = Max
VIN = 0, VCC
IOS
Output Short
Circuit Current
VOUT = 0.5V
VCCIO
Supply Voltage
5.0V Device Output
VCCIO
Supply Voltage
“PD” Mode
Com.
4.75
5.25
V
Ind.
4.5
5.5
V
2.7
3.6
V
3.3V Device Output
VIL
Input Low Voltage
-0.3
0.8
V
VIH
Input High Voltage
2.0
VCCINT + 0.3
V
Com.
0.45
V
VOL
Output Low Voltage
Ind.
0.45
V
VOH
Output High Voltage
Note:
VIN = VIH or VIL
VCCIO = MIN, IOL = 12 mA
VIN = VIH or VIL
VCCIO = MIN, IOH = -4.0 mA
2.4
V
Not more than one output at a time should be shorted. Duration of short circuit test should not exceed 30 sec.
Pin Capacitance
Typ
Max
Units
Conditions
CIN
8
10
pF
VIN = 0V; f = 1.0 MHz
CI/O
8
10
pF
VOUT = 0V; f = 1.0 MHz
Note:
8
Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
The OGI pin ( high -voltage pin during programming) has a maximum capacitance of 12pf.
ATF1508AS/Z
ATF1508AS/Z
Absolute Maximum Ratings*
Temperature Under Bias .................................. -40°C to +85°C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Note:
Minimum voltage is -0.6V dc, which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is VCC + 0.75V dc, which
may overshoot to 7.0V for pulses of less than 20
ns.
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with
Respect to Ground .........................................-2.0V to +7.0V(1)
Voltage on Input Pins
with Respect to Ground
During Programming.....................................-2.0V to +14.0V(1)
1.
Programming Voltage with
Respect to Ground .......................................-2.0V to +14.0V(1)
AC Characteristics
-7
Min
-10
Max
Min
-15
-20
Max
Min
Max
7.5
10
3
15
7
9
3
12
Symbol
Parameter
tPD1
Input or Feedback to
Non-Registered Output
tPD2
I/O Input or Feedback to
Non-Registered Feedback
tSU
Global Clock Setup Time
7
7
11
16
20
ns
tH
Global Clock Hold Time
0
0
0
0
0
ns
tFSU
Global Clock Setup Time of
Fast Input
3
3
3
3
3
ns
tFH
Global Clock Hold Time of
Fast Input
0.5
0.5
1.0
1.5
2
MHz
tCOP
Global Clock to Output Delay
tCH
Global Clock High Time
3
4
5
6
7
ns
tCL
Global Clock Low Time
3
4
5
6
7
ns
tASU
Array Clock Setup Time
3
3
4
4
5
ns
tAH
Array Clock Hold Time
2.5
3
4
5
6
ns
tACOP
Array Clock Output Delay
tACH
Array Clock High Time
3
4
6
8
10
ns
tACL
Array Clock Low Time
3
4
6
8
10
ns
tCNT
Minimum Clock Global Period
fCNT
Maximum Internal Global
Clock Frequency
tACNT
Minimum Array Clock Period
fACNT
Maximum Internal Array
Clock Frequency
4.5
5
7.5
125
100
10
100
Max
Units
20
25
ns
16
20
ns
13
25
17
66
13
76.9
Min
20
13
76.9
Max
10
15
10
8
125
8
10
8
Min
-25
22
50
17
66
ns
ns
MHz
22
50
ns
ns
MHz
(continued)
9
AC Characteristics
-7
Max
Max
Max
Maximum Clock Frequency
tIN
Input Pad and Buffer Delay
0.5
0.5
2
2
2
ns
tIO
I/O Input Pad and Buffer Delay
0.5
0.5
2
2
2
ns
tFIN
Fast Input Delay
1
1
2
2
2
ns
tSEXP
Foldback Term Delay
4
5
8
10
12
ns
tPEXP
Cascade Logic Delay
0.8
0.8
1
1
1.2
ns
tLAD
Logic Array Delay
3
5
6
7
8
ns
tLAC
Logic Control Delay
3
5
6
7
8
ns
tIOE
Internal Output Enable Delay
2
2
3
3
4
ns
tOD1
Output Buffer and Pad Delay
(Slow slew rate = OFF;
VCCIO = 5V; CL = 35 pF)
2
1.5
4
5
6
ns
tOD2
Output Buffer and Pad Delay
(Slow slew rate = OFF;
VCCIO = 3.3V; CL = 35 pF)
2.5
2.0
5
6
7
ns
tOD3
Output Buffer and Pad Delay
(Slow slew rate = ON;
VCCIO = 5V or 3.3V; CL = 35 pF)
5
5.5
8
10
12
ns
100
Min
-25
FMAX
125
Min
-20
Parameter
166.7
Min
-15
Symbol
Note:
Min
-10
Max
41.7
Min
Max
33.3
Units
MHz
See ordering information for valid part numbers.
(continued)
Timing Model
U
10
ATF1508AS/Z
ATF1508AS/Z
AC Characteristics
-7
Max
Min
-15
Max
Min
-20
Max
Min
-25
Symbol
Parameter
tZX1
Output Buffer Enable Delay
(Slow slew rate = OFF;
VCCIO = 5.0V; CL = 35 pF)
4.0
5.0
7
tZX2
Output Buffer Enable Delay
(Slow slew rate = OFF;
VCCIO = 3.3V; CL = 35 pF)
4.5
5.5
tZX3
Output Buffer Enable Delay
(Slow slew rate = ON;
VCCIO = 5.0V/3.3V; CL = 35 pF)
9
tXZ
Output Buffer Disable Delay
(CL = 5 pF)
4
tSU
Register Setup Time
3
2
4
5
6
ns
tH
Register Hold Time
2
3
4
5
6
ns
tFSU
Register Setup Time of Fast Input
3
3
2
2
3
ns
tFH
Register Hold Time of Fast Input
0.5
0.5
2
2
2.5
ns
tRD
Register Delay
1
2
1
2
2
ns
tCOMB
Combinatorial Delay
1
2
1
2
2
ns
tIC
Array Clock Delay
3
5
6
7
8
ns
tEN
Register Enable Time
3
5
6
7
8
ns
tGLOB
Global Control Delay
1
1
1
1
1
ns
tPRE
Register Preset Time
2
3
4
5
6
ns
tCLR
Register Clear Time
2
3
4
5
6
ns
tUIM
Switch Matrix Delay
1
1
2
2
2
ns
tRPA
Reduced-Power Adder(2)
10
11
13
14
15
ns
Notes:
Min
-10
Max
Min
Max
Units
9
10
ns
7
9
10
ns
9
10
11
12
ns
5
6
7
8
ns
1. See ordering information for valid part numbers.
2. The tRPA parameter must be added to the tLAD, tLAC,tTIC, tACL, and tSEXP parameters for macrocells running in the reducedpower mode.
Input Test Waveforms and
Measurement Levels
Output AC Test Loads:
(3.0V)*
(703 )*
(8060 )*
rR, tF = 1.5 ns typical
Note:
*Numbers in parenthesis refer to 3.0V operating conditions (preliminary).
11
Power Down Mode
The ATF1508AS includes two pins for optional pin controlled power down feature. When this mode is enabled, the
PD pin acts as the power down pin. When the PD1 and
PD2 pin is high, the device supply current is reduced to
less than 3 mA. During power down, all output data and
internal logic states are latched and held. Therefore, all
registered and combinatorial output data remain valid. Any
outputs which were in a Hi-Z state at the onset will remain
at Hi-Z. During power down, all input signals except the
power down pin are blocked. Input and I/O hold latches
remain active to insure that pins do not float to indeterminate levels, further reducing system power. The power
down pin feature is enabled in the logic design file. Designs
using either power down pin may not use the PD pin logic
array input. However, all other PD pin as macrocell
resources may still be used, including the buried feedback
and foldback product term array inputs.
Power Down AC Characteristics(1)(2)
-7
Min
-10
tIVDH
Valid I, I/O Before PD High
7
10
15
20
25
ns
tGVDH
Valid OE(2) Before PD High
7
10
15
20
25
ns
7
10
15
20
25
ns
Valid Clock
tDHIX
I, I/O Don’t Care After PD High
(2)
Before PD High
Max
Min
Max
Min
-25
Parameter
tCVDH
Min
-20
Symbol
(2)
Max
-15
Max
Min
Max
Units
12
15
25
30
35
ns
12
15
25
30
35
ns
tDHGX
OE
tDHCX
Clock(2) Don’t Care After PD High
12
15
25
30
35
ns
tDLIV
PD Low to Valid I, I/O
1
1
1
1
1
µs
tDLGV
PD Low to Valid OE (Pin or Term)
1
1
1
1
1
µs
tDLCV
PD Low to Valid Clock (Pin or Term)
1
1
1
1
1
µs
PD Low to Valid Output
1
1
1
1
1
µs
tDLOV
Notes:
Don’t Care After PD High
1. For slow slew outputs, add tSSO.
2. Pin or Product Term.
12
ATF1508AS/Z
ATF1508AS/Z
JTAG-BST Overview
The JTAG boundary-scan testing is controlled by the Test
Access Port (TAP) controller in the ATF1508AS. The
boundary-scan technique involves the inclusion of a shiftregister stage (contained in a boundary-scan cell) adjacent
to each component so that signals at component boundaries can be controlled and observed using scan testing
principles. Each input pin and I/O pin has its own boundary
scan cell (BSC) in order to support boundary scan testing.
The ATF1508AS does not currently include a Test Reset
(TRST) input pin because the TAP controller is automatically reset at power up. The six JTAG BST modes supported include: SAMPLE/PRELOAD, EXTEST, BYPASS,
IDCODE. BST on the ATF1508AS is implemented using
the Boundary Scan Definition Language (BSDL) described
in the JTAG specification (IEEE Standard 1149.1). Any
third party tool that supports the BSDL format can be used
to perform BST on the ATF1508AS.
The ATF1508AS also has the option of using four JTAGstandard I/O pins for in-system programming (ISP). The
ATF1508AS is programmable through the four JTAG pins
using programming compatible with the IEEE JTAG Standard 1149.1. Programming is performed by using 5V TTLlevel programming signals from the JTAG ISP interface.
The JTAG feature is a programmable option. If JTAG (BST
or ISP) is not needed, then the four JTAG control pins are
available as I/O pins.
scan cell (BSC) in order to support boundary scan testing
as described in detail by IEEE Standard 1149.1. Typical
BSC consists of three capture registers or scan registers
and up to two update registers. There are two types of
BSCs, one for input or I/O pin, and one for the macrocells.
The BSCs in the device are chained together through the
capture registers. Input to the capture register chain is fed
in from the TDI pin while the output is directed to the TDO
pin. Capture registers are used to capture active device
data signals, to shift data in and out of the device and to
load data into the update registers. Control signals are generated internally by the JTAG TAP controller. The BSC
configuration for the input and I/O pins and macrocells are
shown below.
BSC Configuration Pins and
Macrocells (except JTAG TAP Pins)
JTAG Boundary Scan Cell (BSC)
Testing
The ATF1508AS contains up to 96 I/O pins and 4 input
pins, depending on the device type and package type
selected. Each input pin and I/O pin has its own boundary
Note:
The ATF1508AS has pull-up option on TMS and TDI
pins. This feature is selected as a design option.
13
BSC Configuration for Macrocell
Pin BSC
TDO
0
1
Pin
DQ
Capture
DR
Clock
TDI
Shift
TDO
OEJ
0
1
0
D Q
D Q
1
OUTJ
0
Pin
1
0
D Q
D Q
Capture
DR
Update
DR
1
Mode
TDI
Shift
Clock
Macrocell BSC
14
ATF1508AS/Z
ATF1508AS/Z
PCI Compliance
The ATF1508AS also supports the growing need in the
industry to support the new Peripheral Component Interconnect (PCI) interface standard in PCI-based designs and
specifications. The PCI interface calls for high current drivers which are much larger than the traditional TTL drivers.
PCI Voltage-to-Current Curves for +5V
Signaling in Pull-Up Mode
PCI Voltage-to-Current Curves for +5V
Signaling in Pull-Down Mode
Pull Down
Pull Up
Test Point
Voltage
AC drive
point
Voltage
VCC
VCC
2.4
2.2
DC
drive point
DC
drive point
1.4
0.55
AC drive
point
-2
Test Point
3.6
-44 Current (mA) -178
95 Current (mA) 380
PCI DC Characteristics
Symbol
Parameter
VCC
Conditions
Min
Max
Units
Supply Voltage
4.75
5.25
V
VIH
Input High Voltage
2.0
VCC + 0.5
V
VIL
Input Low Voltage
-0.5
0.8
V
IIH
Input High Leakage Current
VIN = 2.7V
70
µA
IIL
Input Low Leakage Current
VIN = 0.5V
-70
µA
VOH
Output High Voltage
IOUT = -2 mA
VOL
Output Low Voltage
IOUT = 3 mA, 6 mA
CIN
2.4
V
0.55
V
Input Pin Capacitance
10
pF
CCLK
CLK Pin Capacitance
12
pF
CIDSEL
IDSEL Pin Capacitance
8
pF
LPIN
Pin Inductance
20
nH
Note:
Leakage Current is without Pin-Keeper off.
= Preliminary
15
PCI AC Characteristics
Symbol
Parameter
Conditions
Min
IOH(AC)
Switching
0 < VOUT ≤ 1.4
-44
mA
1.4 < VOUT < 2.4
-44+(VOUT-1.4)/0.024
mA
Current High
IOL(AC)
Max
Units
3.1 < VOUT < VCC
Equation A
mA
(Test High)
VOUT = 3.1V
-142
µA
Switching
VOUT > 2.2V
95
mA
2.2 > VOUT > 0
VOUT/0.023
mA
Current Low
0.1 > VOUT > 0
Equation B
mA
(Test Point)
VOUT = 0.71
206
mA
ICL
Low Clamp Current
-5 < VIN ≤ -1
-25+(VIN+1)/0.015
SLEWR
Output Rise Slew Rate
0.4V to 2.4V load
0.5
3.0
V/ns
SLEWF
Output Fall Slew Rate
2.4V to 0.4V load
0.5
3.0
V/ns
Notes:
1. Equation A: IOH = 11.9(VOUT - 5.25) * (VOUT + 2.45) for VCC > VOUT > 3.1V.
2. Equation B: IOL = 78.5 * VOUT * (4.4 - VOUT) for 0V < VOUT < 0.71V.
16
mA
ATF1508AS/Z
= Preliminary
ATF1508AS/Z
ATF1508AS Dedicated Pinouts
84-Pin
J-Lead
100-Pin PQFP
100-Pin TQFP
160-Pin PQFP
INPUT/OE2/GCLK2
2
92
90
142
INPUT/GCLR
1
91
89
141
INPUT/OE1
84
90
88
140
INPUT/GCLK1
83
89
87
139
I/O /GCLK3
81
87
85
137
12,45
3,43
1,41
63,159
I/O / TDI(JTAG)
14
6
4
9
I/O / TMS(JTAG)
23
17
15
22
I/O / TCK(JTAG)
62
64
62
99
I/O / TDO(JTAG)
71
75
73
112
7,19,32,42,
47,59,72,82
13,28,40,45,
61,76,88,97
11,26,38,43,
59,74,86,95
17,42,60,66,95,
113,138,148
VCCINT
3,43
41,93
39,91
61,143
VCCIO
13,26,38,
53,66,78
5,20,36,53,68,84
3,18,34,51,66,82
8,26,55,79,104,133
Dedicated Pin
I/O / PD (1, 2)
GND
-
-
-
1,2,3,4,5,6,7,34,35,36,
37,38,39,40,44,45,46,
47,74,75,76,77,81,82,
83,84,85,86,87,114,
115,116,117,118,119,
120,124,125,126,127,
154,155,156,157
# of SIGNAL PINS
68
84
84
100
# USER I/O PINS
64
80
80
96
N/C
OE (1, 2)
GCLR
GCLK (1, 2, 3)
PD (1, 2)
TDI, TMS, TCK, TDO
GND
VCCINT
VCCIO
Global OE Pins
Global Clear Pin
Global Clock Pins
Power down pins
JTAG pins used for Boundary Scan Testing or In-System Programming
Ground Pins
VCC pins for the device (+5V - Internal)
VCC pins for output drivers (for I/O pins) (+5V or 3.3V - I/Os)
17
ATF1508AS I/O Pinouts
MC
PLB
84-Pin
J-Lead
100-Pin
PQFP
100-Pin
TQFP
160-Pin
PQFP
MC
PLB
84-Pin
J-Lead
100-Pin
PQFP
100-Pin
TQFP
160-Pin
PQFP
1
A
-
4
2
160
33
C
-
27
25
41
2
A
-
-
-
-
34
C
-
-
-
-
3
A/
PD1
12
3
1
159
35
C
31
26
24
33
4
A
-
-
-
158
36
C
-
-
-
32
5
A
11
2
100
153
37
C
30
25
23
31
6
A
10
1
99
152
38
C
29
24
22
30
7
A
-
-
-
-
39
C
-
-
-
-
8
A
9
100
98
151
40
C
28
23
21
29
9
A
-
99
97
150
41
C
-
22
20
28
10
A
-
-
-
-
42
C
-
-
-
-
11
A
8
98
96
149
43
C
27
21
19
27
12
A
-
-
-
147
44
C
-
-
-
25
13
A
6
96
94
146
45
C
25
19
17
24
14
A
5
95
93
145
46
C
24
18
16
23
15
A
-
-
-
-
47
C
-
-
-
-
16
A
4
94
92
144
48
C/
TMS
23
17
15
22
17
B
22
16
14
21
49
D
41
39
37
59
18
B
-
-
-
-
50
D
-
-
-
-
19
B
21
15
13
20
51
D
40
38
36
58
20
B
-
-
-
19
52
D
-
-
-
57
21
B
20
14
12
18
53
D
39
37
35
56
22
B
-
12
10
16
54
D
-
35
33
54
23
B
-
-
-
-
55
D
-
-
-
-
24
B
18
11
9
15
56
D
37
34
32
53
25
B
17
10
8
14
57
D
36
33
31
52
26
B
-
-
-
-
58
D
-
-
-
-
27
B
16
9
7
13
59
D
35
32
30
51
28
B
-
-
-
12
60
D
-
-
-
50
29
B
15
8
6
11
61
D
34
31
29
49
30
B
-
7
5
10
62
D
-
30
28
48
31
B
-
-
-
-
63
D
-
-
-
-
32
B/
TDI
14
6
4
9
64
D
33
29
27
43
18
ATF1508AS/Z
ATF1508AS/Z
ATF1508AS I/O Pinouts (Continued)
MC
PLB
84-Pin
J-Lead
100-Pin
PQFP
100-Pin
TQFP
160-Pin
PQFP
MC
PLB
84-Pin
J-Lead
100-Pin
PQFP
100-Pin
TQFP
160-Pin
PQFP
65
E
44
42
40
62
97
G
63
65
63
100
66
E
-
-
-
-
98
G
-
-
-
-
67
E/
PD2
45
43
41
63
99
G
64
66
64
101
68
E
-
-
-
64
100
G
-
-
-
102
69
E
46
44
42
65
101
G
65
67
65
103
70
E
-
46
44
67
102
G
-
69
67
105
71
E
-
-
-
-
103
G
-
-
-
-
72
E
48
47
45
68
104
G
67
70
68
106
73
E
49
48
46
69
105
G
68
71
69
107
74
E
-
-
-
-
106
G
-
-
-
-
75
E
50
49
47
70
107
G
69
72
70
108
76
E
-
-
-
71
108
G
-
-
-
109
77
E
51
50
48
72
109
G
70
73
71
110
78
E
-
51
49
73
110
G
-
74
72
111
79
E
-
-
-
-
111
G
-
-
-
-
80
E
52
52
50
78
112
G/
TDO
71
75
73
112
81
F
-
54
52
80
113
H
-
77
75
121
82
F
-
-
-
-
114
H
-
-
-
-
83
F
54
55
53
88
115
H
73
78
76
122
84
F
-
-
-
89
116
H
-
-
-
123
85
F
55
56
54
90
117
H
74
79
77
128
86
F
56
57
55
91
118
H
75
80
78
129
87
F
-
-
-
-
119
H
-
-
-
-
88
F
57
58
56
92
120
H
76
81
79
130
89
F
-
59
57
93
121
H
-
82
80
131
90
F
-
-
-
-
122
H
-
-
-
-
91
F
58
60
58
94
123
H
77
83
81
132
92
F
-
-
-
96
124
H
-
-
-
134
93
F
60
62
60
97
125
H
79
85
83
135
94
F
61
63
61
98
126
H
80
86
84
136
95
F
-
-
-
-
127
H
-
-
-
-
96
F/
TCK
62
64
62
99
128
H/
GCLK3
81
87
85
137
19
SUPPLY CURRENT vs. SUPPLY VOLTAGE (TA = 25C)
LOW POWER, MC POWER CONTROL BIT TO LOW POWER
200
1.5
175
1.25
ICC (mA)
ICC (mA)
SUPPLY CURRENT vs. SUPPLY VOLTAGE (TA = 25C)
STANDARD POWER, MC POWER CONTROL BIT TO NORMAL
150
1
125
0.75
100
0.5
4.5
4.75
5
5.25
5.5
4.5
4.75
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE (TA = 25C)
STANDARD POWER, MC POWER CONTROL BIT TO LOW POWER
5.25
5.5
SUPPLY CURRENT vs. FREQUENCY
LOW POWER, MC POWER BIT TO NORMAL
(VCC = 5.0V, TA = 25C)
200
250
175
200
ICC (mA)
ICC (mA)
5
SUPPLY VOLTAGE (V)
150
125
150
100
50
100
0
4.5
4.75
5
5.25
5.5
0
5
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE (TA = 25C)
LOW POWER, MC POWER CONTROL BIT TO NORMAL
20
50
SUPPLY CURRENT vs. FREQUENCY
LOW POWER, MC POWER BIT TO LOW POWER
(VCC = 5.0V, TA = 25C)
1.5
200
ICC (mA)
1.25
ICC (mA)
10
FREQUENCY (MHz)
1
0.75
150
100
50
0.5
4.5
4.75
5
5.25
SUPPLY VOLTAGE (V)
20
ATF1508AS/Z
5.5
0
0
5
10
FREQUENCY (MHz)
20
50
ATF1508AS/Z
Ordering Information
tPD
(ns)
tCO1
(ns)
fMAX
(MHz)
7.5
4.5
10
Ordering Code
Package
Operation Range
166.7
ATF1508AS-7 JC84
ATF1508AS-7 QC100
ATF1508AS-7 AC100
ATF1508AS-7 QC160
84J
100Q1
100A
160Q
Commercial
(0°C to 70°C)
5
125
ATF1508AS-10 JC84
ATF1508AS-10 QC100
ATF1508AS-10 AC100
ATF1508AS-10 QC160
84J
100Q1
100A
160Q
Commercial
(0°C to 70°C)
15
8
100
ATF1508AS-15 JC84
ATF1508AS-15 QC100
ATF1508AS-15 AC100
ATF1508AS-15 QC160
84J
100Q1
100A
160Q
Commercial
(0°C to 70°C)
15
8
100
ATF1508AS-15 JI84
ATF1508AS-15 QI100
ATF1508AS-15 AI100
ATF1508AS-15 QI160
84J
100Q1
100A
160Q
Industrial
(-40°C to +85°C)
20
12
83.3
ATF1508ASZ-20 JC84
ATF1508ASZ-20 QC100
ATF1508ASZ-20 AC100
ATF1508ASZ-20 QC160
84J
100Q1
100A
160Q
Commercial
(0°C to 70°C)
25
15
70
ATF1508ASZ-25 JC84
ATF1508ASZ-25 QC100
ATF1508ASZ-25 AC100
ATF1508ASZ-25 QC160
84J
100Q1
100A
160Q
Commercial
(0°C to 70°C)
25
15
70
ATF1508ASZ-25 JI84
ATF1508ASZ-25 QI100
ATF1508ASZ-25 AI100
ATF1508ASZ-25 QI160
84J
100Q1
100A
160Q
Industrial
(-40°C to +85°C)
Package Type
84J
100Q1
100A
160Q
84-Lead, Plastic J-Leaded Chip Carrier (PLCC)
100-Lead, Plastic Quad Pin Flat Package (PQFP)
100-Lead, Very Thin Plastic Gull Wing Quad Flat Package (TQFP)
160-Lead, Plastic Quad Pin Flat Package (PQFP)
21
ATF1508AS/Z
Packaging Information
84J, 84 Lead, Plastic J-Leaded Chip Carrier (PLCC)
Dimensions in Inches and (Millimeters)
JEDEC STANDARD MS-018 AF
100Q1, 100 Lead, Plastic Gull Wing Quad Flat
Package (PQFP)
Dimensions in Millimeters and (Inches)
.687(17.44)
.667(16.95)
PIN 1 ID
.792(20.12)
.782(19.87)
0.026(.65) BSC
.016(0.41)
.923(23.45)
.009(0.22)
.904(22.95)
.010(0.25)
.004(0.10)
7
0
.556(14.12)
.546(13.87)
.134(3.40) MAX
.041(1.03)
.004(0.10) MIN
.028(0.73)
*Controlling dimension: Millimeters
100A, 100 Lead, Very Thin (1.0mm) Plastic Gull
Wing Quad Flat Package (TQFP)
Dimensions in Millimeters and (Inches)*
16.25(0.640)
15.75(0.620)
160Q, 160 Lead, Plastic Gull Wing Quad Flat
Package (PQFP)
Dimensions in Millimeters and (Inches)
1.238(31.45)
SQ
1.218(30.95)
PIN 1 ID
PIN 1 ID
0.17(0.007)
0.27(0.011)
.016(0.40)
.008(0.20)
.0256(0.65) BSC
0.56(0.022)
0.44(0.018)
1.106(28.10)
14.10(0.555)
13.90(0.547)
0.20(0.008)
0.10(0.004)
0.95(0.037)
1.27(0.05)
0-7
.009(0.23)
7
0
1.098(27.90)
SQ
.157(3.97)
.127(3.22)
.004(0.10)
0.45(0.018)
0.75(0.030)
*Controlling dimension: Millimeters
0.05(0.002)
0.15(0.006)
.037(0.95)
.025(0.65)
.020(0.50)
.002(0.05)
*Controlling dimension: Millimeters
22