GSI GS8321Z36AD-333IV 36mb pipelined and flow through synchronous nbt sram Datasheet

GS8321Z18/32/36AD-xxxV
333 MHz–150 MHz
1.8 V or 2.5 V VDD
1.8 V or 2.5 V I/O
36Mb Pipelined and Flow Through
Synchronous NBT SRAM
165-Bump BGA
Commercial Temp
Industrial Temp
Features
• User-configurable Pipeline and Flow Through mode
• NBT (No Bus Turn Around) functionality allows zero wait
read-write-read bus utilization
• Fully pin-compatible with both pipelined and flow through
NtRAM™, NoBL™ and ZBT™ SRAMs
• IEEE 1149.1 JTAG-compatible Boundary Scan
• 1.8 V or 2.5 V core power supply
• 1.8 V or 2.5 V I/O supply
• LBO pin for Linear or Interleave Burst mode
• Pin-compatible with 2Mb, 4Mb, 8Mb, and 18Mb devices
• Byte write operation (9-bit Bytes)
• 3 chip enable signals for easy depth expansion
• ZZ pin for automatic power-down
• JEDEC-standard 165-bump BGA package
• RoHS-compliant 165-bump BGA package available
Functional Description
The GS8321Z18/32/36AD-xxxV is a 36Mbit Synchronous
Static SRAM. GSI's NBT SRAMs, like ZBT, NtRAM, NoBL
or other pipelined read/double late write or flow through read/
single late write SRAMs, allow utilization of all available bus
bandwidth by eliminating the need to insert deselect cycles
when the device is switched from read to write cycles.
Because it is a synchronous device, address, data inputs, and
read/ write control inputs are captured on the rising edge of the
input clock. Burst order control (LBO) must be tied to a power
rail for proper operation. Asynchronous inputs include the
Sleep mode enable, ZZ and Output Enable. Output Enable can
be used to override the synchronous control of the output
drivers and turn the RAM's output drivers off at any time.
Write cycles are internally self-timed and initiated by the rising
edge of the clock input. This feature eliminates complex offchip write pulse generation required by asynchronous SRAMs
and simplifies input signal timing.
The GS8321Z18/32/36AD-xxxV may be configured by the
user to operate in Pipeline or Flow Through mode. Operating
as a pipelined synchronous device, in addition to the risingedge-triggered registers that capture input signals, the device
incorporates a rising-edge-triggered output register. For read
cycles, pipelined SRAM output data is temporarily stored by
the edge triggered output register during the access cycle and
then released to the output drivers at the next rising edge of
clock.
The GS8321Z18/32/36AD-xxxV is implemented with GSI's
high performance CMOS technology and is available in
JEDEC-standard 165-bump FP-BGA package.
Parameter Synopsis
Pipeline
3-1-1-1
Flow
Through
2-1-1-1
Rev: 1.03 8/2013
tKQ
tCycle
Curr (x18)
Curr (x32/x36)
tKQ
tCycle
Curr (x18)
Curr (x32/x36)
-333
3.0
3.0
-250
3.0
4.0
-200
3.0
5.0
-150
3.8
6.7
Unit
ns
ns
365
425
5.0
5.0
270
315
290
345
5.5
5.5
245
280
250
290
6.5
6.5
210
250
215
240
7.5
7.5
200
230
mA
mA
ns
ns
mA
mA
1/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
165 Bump BGA—x18 Commom I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BB
NC
E3
CKE
ADV
A
A
A
A
B
NC
A
E2
NC
BA
CK
W
G
A
A
NC
B
C
NC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
DQA
C
D
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
D
E
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
E
F
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
F
G
NC
DQB
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
NC
DQA
G
H
FT
MCH
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
J
K
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
K
L
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
L
M
DQB
NC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
NC
M
N
DQB
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
NC
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
NC
P
R
LBO
A
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.03 8/2013
2/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
165 Bump BGA—x32 Common I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BC
BB
E3
CKE
ADV
A
A
NC
A
B
NC
A
E2
BD
BA
CK
W
G
A
A
NC
B
C
NC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
NC
C
D
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
D
E
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
E
F
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
F
G
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
G
H
FT
MCH
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
J
K
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
K
L
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
L
M
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
M
N
NC
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
NC
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
NC
P
R
LBO
A
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.03 8/2013
3/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
165 Bump BGA—x36 Common I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
11
A
NC
A
E1
BC
BB
E3
CKE
ADV
A
A
NC
A
B
NC
A
E2
BD
BA
CK
W
G
A
A
NC
B
C
DQC
NC
VDDQ
VSS
VSS
VSS
VSS
VSS
VDDQ
NC
DQB
C
D
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
D
E
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
E
F
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
F
G
DQC
DQC
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQB
DQB
G
H
FT
MCH
NC
VDD
VSS
VSS
VSS
VDD
NC
NC
ZZ
H
J
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
J
K
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
K
L
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
L
M
DQD
DQD
VDDQ
VDD
VSS
VSS
VSS
VDD
VDDQ
DQA
DQA
M
N
DQD
NC
VDDQ
VSS
NC
NC
NC
VSS
VDDQ
NC
DQA
N
P
NC
NC
A
A
TDI
A1
TDO
A
A
A
NC
P
R
LBO
A
A
A
TMS
A0
TCK
A
A
A
A
R
11 x 15 Bump BGA—13 mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.03 8/2013
4/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
GS8321Z18/32/36AD-xxxV 165-Bump BGA Pin Description
Symbol
Type
Description
A 0, A 1
I
Address field LSBs and Address Counter Preset Inputs
An
I
Address Inputs
DQA
DQB
DQC
DQD
I/O
Data Input and Output pins
BA , BB , BC , BD
I
Byte Write Enable for DQA, DQB, DQC, DQD I/Os; active low
CK
I
Clock Input Signal; active high
CKE
I
Clock Enable; active low
W
I
Write Enable; active low
E1
I
Chip Enable; active low
E3
I
Chip Enable; active low
E2
I
Chip Enable; active high
FT
I
Flow Through / Pipeline Mode Control
G
I
Output Enable; active low
ADV
I
Burst address counter advance enable; active high
ZZ
I
Sleep mode control; active high
LBO
I
Linear Burst Order mode; active low
TMS
I
Scan Test Mode Select
TDI
I
Scan Test Data In
TDO
O
Scan Test Data Out
TCK
I
Scan Test Clock
MCH
—
Must Connect High
VDD
I
Core power supply
VSS
I
I/O and Core Ground
VDDQ
I
Output driver power supply
NC
—
No Connect
Rev: 1.03 8/2013
5/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Register 1
Register 2
K
Write Data
Write Data
K
D
Q
K
FT
DQa–DQn
GS8321Z18/32/36AD-xxxV NBT SRAM Functional Block Diagram
Memory
Array
Sense Amps
FT
Register 2
Register 1
Control Logic
6/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
G
CKE
CK
E3
E2
E1
BD
BC
BB
BA
W
LBO
ADV
A0–An
K
K
Data Coherency
Match
Read, Write and
K
Write Address
Write Address
K
K
D
Q
SA1
SA0
Burst
Counter
SA1’
SA0’
18
Write Drivers
Rev: 1.03 8/2013
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Functional Details
Clocking
Deassertion of the Clock Enable (CKE) input blocks the Clock input from reaching the RAM's internal circuits. It may be used to
suspend RAM operations. Failure to observe Clock Enable set-up or hold requirements will result in erratic operation.
Pipeline Mode Read and Write Operations
All inputs (with the exception of Output Enable, Linear Burst Order and Sleep) are synchronized to rising clock edges. Single cycle
read and write operations must be initiated with the Advance/Load pin (ADV) held low, in order to load the new address. Device
activation is accomplished by asserting all three of the Chip Enable inputs (E1, E2 and E3). Deassertion of any one of the Enable
inputs will deactivate the device.
Function
W
BA
BB
BC
BD
Read
H
X
X
X
X
Write Byte “a”
L
L
H
H
H
Write Byte “b”
L
H
L
H
H
Write Byte “c”
L
H
H
L
H
Write Byte “d”
L
H
H
H
L
Write all Bytes
L
L
L
L
L
Write Abort/NOP
L
H
H
H
H
Read operation is initiated when the following conditions are satisfied at the rising edge of clock: CKE is asserted low, all three
chip enables (E1, E2, and E3) are active, the write enable input signals W is deasserted high, and ADV is asserted low. The address
presented to the address inputs is latched in to address register and presented to the memory core and control logic. The control
logic determines that a read access is in progress and allows the requested data to propagate to the input of the output register. At
the next rising edge of clock the read data is allowed to propagate through the output register and onto the output pins.
Write operation occurs when the RAM is selected, CKE is active and the write input is sampled low at the rising edge of clock. The
Byte Write Enable inputs (BA, BB, BC & BD) determine which bytes will be written. All or none may be activated. A write cycle
with no Byte Write inputs active is a no-op cycle. The pipelined NBT SRAM provides double late write functionality, matching the
write command versus data pipeline length (2 cycles) to the read command versus data pipeline length (2 cycles). At the first rising
edge of clock, Enable, Write, Byte Write(s), and Address are registered. The Data In associated with that address is required at the
third rising edge of clock.
Flow Through Mode Read and Write Operations
Operation of the RAM in Flow Through mode is very similar to operations in Pipeline mode. Activation of a read cycle and the use
of the Burst Address Counter is identical. In Flow Through mode the device may begin driving out new data immediately after new
address are clocked into the RAM, rather than holding new data until the following (second) clock edge. Therefore, in Flow
Through mode the read pipeline is one cycle shorter than in Pipeline mode.
Write operations are initiated in the same way, but differ in that the write pipeline is one cycle shorter as well, preserving the ability
to turn the bus from reads to writes without inserting any dead cycles. While the pipelined NBT RAMs implement a double late
write protocol, in Flow Through mode a single late write protocol mode is observed. Therefore, in Flow Through mode, address
and control are registered on the first rising edge of clock and data in is required at the data input pins at the second rising edge of
clock.
Rev: 1.03 8/2013
7/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Synchronous Truth Table
Operation
Type
Address
CK
CKE
ADV
W
Bx
E1
E2
E3
G
ZZ
DQ
Read Cycle, Begin Burst
R
External
L-H
L
L
H
X
L
H
L
L
L
Q
Read Cycle, Continue Burst
B
Next
L-H
L
H
X
X
X
X
X
L
L
Q
1,10
NOP/Read, Begin Burst
R
External
L-H
L
L
H
X
L
H
L
H
L
High-Z
2
Dummy Read, Continue Burst
B
Next
L-H
L
H
X
X
X
X
X
H
L
High-Z
1,2,10
Write Cycle, Begin Burst
W
External
L-H
L
L
L
L
L
H
L
X
L
D
3
Write Abort, Begin Burst
D
None
L-H
L
L
L
H
L
H
L
X
L
High-Z
1
Write Cycle, Continue Burst
B
Next
L-H
L
H
X
L
X
X
X
X
L
D
1,3,10
Write Abort, Continue Burst
B
Next
L-H
L
H
X
H
X
X
X
X
L
High-Z
1,2,3,10
Deselect Cycle, Power Down
D
None
L-H
L
L
X
X
H
X
X
X
L
High-Z
Deselect Cycle, Power Down
D
None
L-H
L
L
X
X
X
X
H
X
L
High-Z
Deselect Cycle, Power Down
D
None
L-H
L
L
X
X
X
L
X
X
L
High-Z
Deselect Cycle, Continue
D
None
L-H
L
H
X
X
X
X
X
X
L
High-Z
None
X
X
X
X
X
X
X
X
X
H
High-Z
Current
L-H
H
X
X
X
X
X
X
X
L
-
Sleep Mode
Clock Edge Ignore, Stall
Notes
1
4
Notes:
1. Continue Burst cycles, whether read or write, use the same control inputs. A Deselect continue cycle can only be entered into if a Deselect
cycle is executed first.
2. Dummy Read and Write abort can be considered NOPs because the SRAM performs no operation. A Write abort occurs when the W pin is
sampled low but no Byte Write pins are active so no write operation is performed.
3. G can be wired low to minimize the number of control signals provided to the SRAM. Output drivers will automatically turn off during write
cycles.
4. If CKE High occurs during a pipelined read cycle, the DQ bus will remain active (Low Z). If CKE High occurs during a write cycle, the bus
will remain in High Z.
5. X = Don’t Care; H = Logic High; L = Logic Low; Bx = High = All Byte Write signals are high; Bx = Low = One or more Byte/Write signals
are Low
6. All inputs, except G and ZZ must meet setup and hold times of rising clock edge.
7. Wait states can be inserted by setting CKE high.
8. This device contains circuitry that ensures all outputs are in High Z during power-up.
9. A 2-bit burst counter is incorporated.
10. The address counter is incriminated for all Burst continue cycles.
Rev: 1.03 8/2013
8/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Pipelined and Flow Through Read Write Control State Diagram
D
B
Deselect
W
R
D
D
W
New Read
New Write
R
R
W
B
B
R
W
R
Burst Read
W
Burst Write
B
B
D
Key
D
Notes:
Input Command Code
1. The Hold command (CKE Low) is not
shown because it prevents any state change.
ƒ Transition
Current State (n)
2. W, R, B, and D represent input command
codes as indicated in the Synchronous Truth Table.
Next State (n+1)
n
n+1
n+2
n+3
Clock (CK)
Command
ƒ
Current State
ƒ
ƒ
ƒ
Next State
Current State and Next State Definition for Pipelined and Flow Through Read/Write Control State Diagram
Rev: 1.03 8/2013
9/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Pipeline Mode Data I/O State Diagram
Intermediate
B W
R B
Intermediate
R
High Z
(Data In)
D
Data Out
(Q Valid)
W
D
Intermediate
Intermediate
W
Intermediate
R
High Z
B
D
Intermediate
Key
Notes:
Input Command Code
1. The Hold command (CKE Low) is not
shown because it prevents any state change.
ƒ Transition
Current State (n)
Transition
Intermediate State (N+1)
n
Next State (n+2)
n+1
2. W, R, B, and D represent input command
codes as indicated in the Truth Tables.
n+2
n+3
Clock (CK)
Command
ƒ
ƒ
ƒ
Current State
Intermediate
State
Next State
ƒ
Current State and Next State Definition for Pipeline Mode Data I/O State Diagram
Rev: 1.03 8/2013
10/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Flow Through Mode Data I/O State Diagram
B W
R B
R
High Z
(Data In)
Data Out
(Q Valid)
W
D
D
W
R
High Z
B
D
Key
Notes:
Input Command Code
1. The Hold command (CKE Low) is not
shown because it prevents any state change.
ƒ Transition
Current State (n)
2. W, R, B, and D represent input command
codes as indicated in the Truth Tables.
Next State (n+1)
n
n+1
n+2
n+3
Clock (CK)
Command
ƒ
Current State
ƒ
ƒ
ƒ
Next State
Current State and Next State Definition for: Pipeline and Flow through Read Write Control State Diagram
Rev: 1.03 8/2013
11/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Burst Cycles
Although NBT RAMs are designed to sustain 100% bus bandwidth by eliminating turnaround cycle when there is transition from
read to write, multiple back-to-back reads or writes may also be performed. NBT SRAMs provide an on-chip burst address
generator that can be utilized, if desired, to further simplify burst read or write implementations. The ADV control pin, when
driven high, commands the SRAM to advance the internal address counter and use the counter generated address to read or write
the SRAM. The starting address for the first cycle in a burst cycle series is loaded into the SRAM by driving the ADV pin low, into
Load mode.
Burst Order
The burst address counter wraps around to its initial state after four addresses (the loaded address and three more) have been
accessed. The burst sequence is determined by the state of the Linear Burst Order pin (LBO). When this pin is low, a linear burst
sequence is selected. When the RAM is installed with the LBO pin tied high, Interleaved burst sequence is selected. See the tables
below for details.
Mode Pin Functions
Mode Name
Pin Name
Burst Order Control
LBO
Output Register Control
FT
Power Down Control
ZZ
State
Function
L
Linear Burst
H
Interleaved Burst
L
Flow Through
H or NC
Pipeline
L or NC
Active
H
Standby, IDD = ISB
Note:
There is a pull-up device on the FT pin and a pull-down device on the ZZ pin , so this input pin can be unconnected and the chip will operate in
the default states as specified in the above tables.
Burst Counter Sequences
Linear Burst Sequence
Interleaved Burst Sequence
A[1:0]
A[1:0]
A[1:0]
A[1:0]
A[1:0]
A[1:0]
A[1:0]
A[1:0]
1st address
00
01
10
11
1st address
00
01
10
11
2nd address
01
10
11
00
2nd address
01
00
11
10
3rd address
10
11
00
01
3rd address
10
11
00
01
4th address
11
00
01
10
4th address
11
10
01
00
Note:
The burst counter wraps to initial state on the 5th clock.
Note:
The burst counter wraps to initial state on the 5th clock.


Rev: 1.03 8/2013
12/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Sleep Mode
During normal operation, ZZ must be pulled low, either by the user or by it’s internal pull down resistor. When ZZ is pulled high,
the SRAM will enter a Power Sleep mode after 2 cycles. At this time, internal state of the SRAM is preserved. When ZZ returns to
low, the SRAM operates normally after ZZ recovery time.
Sleep mode is a low current, power-down mode in which the device is deselected and current is reduced to ISB2. The duration of
Sleep mode is dictated by the length of time the ZZ is in a high state. After entering Sleep mode, all inputs except ZZ become
disabled and all outputs go to High-Z The ZZ pin is an asynchronous, active high input that causes the device to enter Sleep mode.
When the ZZ pin is driven high, ISB2 is guaranteed after the time tZZI is met. Because ZZ is an asynchronous input, pending
operations or operations in progress may not be properly completed if ZZ is asserted. Therefore, Sleep mode must not be initiated
until valid pending operations are completed. Similarly, when exiting Sleep mode during tZZR, only a Deselect or Read commands
may be applied while the SRAM is recovering from Sleep mode.
Sleep Mode Timing Diagram
tKH
tKC
tKL
CK
tZZR
tZZS
tZZH
ZZ
Designing for Compatibility
The GSI NBT SRAMs offer users a configurable selection between Flow Through mode and Pipelinemode via the FT signal found
on Pin 14. Not all vendors offer this option, however most mark Pin 14 as VDD or VDDQ on pipelined parts and VSS on flow
through parts. GSI NBT SRAMs are fully compatible with these sockets.
Rev: 1.03 8/2013
13/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Absolute Maximum Ratings
(All voltages reference to VSS)
Symbol
Description
Value
Unit
VDD
Voltage on VDD Pins
–0.5 to 4.6
V
VDDQ
Voltage on VDDQ Pins
–0.5 to VDD
V
VI/O
Voltage on I/O Pins
–0.5 to VDD +0.5 ( 4.6 V max.)
V
VIN
Voltage on Other Input Pins
–0.5 to VDD +0.5 ( 4.6 V max.)
V
IIN
Input Current on Any Pin
+/–20
mA
IOUT
Output Current on Any I/O Pin
+/–20
mA
PD
Package Power Dissipation
1.5
W
TSTG
Storage Temperature
–55 to 125
o
TBIAS
Temperature Under Bias
–55 to 125
o
C
C
Note:
Permanent damage to the device may occur if the Absolute Maximum Ratings are exceeded. Operation should be restricted to Recommended
Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of
this component.
Power Supply Voltage Ranges (1.8 V/2.5 V Version)
Parameter
Symbol
Min.
Typ.
Max.
Unit
1.8 V Supply Voltage
VDD1
1.7
1.8
2.0
V
2.5 V Supply Voltage
VDD2
2.3
2.5
2.7
V
1.8 V VDDQ I/O Supply Voltage
VDDQ1
1.7
1.8
VDD
V
2.5 V VDDQ I/O Supply Voltage
VDDQ2
2.3
2.5
VDD
V
Parameter
Symbol
Min.
Typ.
Max.
Unit
VDD Input High Voltage
VIH
0.6*VDD
—
VDD + 0.3
V
VDD Input Low Voltage
VIL
–0.3
—
0.3*VDD
V
VDDQ2 & VDDQ1 Range Logic Levels
Notes:
1. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the
device.
2. VIH (max) must be met for any instantaneous value of VDD.
3. VDD needs to power-up before or at the same time as VDDQ to make sure VIH (max) is not exceeded.
Rev: 1.03 8/2013
14/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Operating Temperature
Parameter
Symbol
Min.
Typ.
Max.
Unit
Junction Temperature
(Commercial Range Versions)
TJ
0
25
85
C
Junction Temperature
(Industrial Range Versions)*
TJ
–40
25
100
C
Note:
* The part numbers of Industrial Temperature Range versions end with the character “I”. Unless otherwise noted, all performance specifications
quoted are evaluated for worst case in the temperature range marked on the device.
Thermal Impedance
Package
Test PCB
Substrate
JA (C°/W)
Airflow = 0 m/s
 JA (C°/W)
Airflow = 1 m/s
 JA (C°/W)
Airflow = 2 m/s
JB (C°/W)
 JC (C°/W)
165 BGA
4-layer
24.4
21.0
20.0
11.6
3.7
Notes:
1. Thermal Impedance data is based on a number of of samples from mulitple lots and should be viewed as a typical number.
2. Please refer to JEDEC standard JESD51-6.
3. The characteristics of the test fixture PCB influence reported thermal characteristics of the device. Be advised that a good thermal path to
the PCB can result in cooling or heating of the RAM depending on PCB temperature.
Undershoot Measurement and Timing
Overshoot Measurement and Timing
VIH
20% tKC
VDD + 2.0 V
VSS
50%
50%
VDD
VSS – 2.0 V
20% tKC
VIL
Note:
Input Under/overshoot voltage must be –2 V > Vi < VDDn+2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
Capacitance
(TA = 25oC, f = 1 MHZ, VDD = 2.5 V)
Parameter
Symbol
Test conditions
Typ.
Max.
Unit
Input Capacitance
CIN
VIN = 0 V
8
10
pF
Input/Output Capacitance
CI/O
VOUT = 0 V
12
14
pF
Note:
These parameters are sample tested.
Rev: 1.03 8/2013
15/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
AC Test Conditions
Parameter
Conditions
Input high level
VDD – 0.2 V
Input low level
0.2 V
Input slew rate
1 V/ns
Input reference level
VDD/2
Output reference level
VDDQ/2
Output load
Fig. 1
Figure 1
Output Load 1
DQ
30pF*
50
VDDQ/2
* Distributed Test Jig Capacitance
Notes:
1. Include scope and jig capacitance.
2. Test conditions as specified with output loading as shown in Fig. 1
unless otherwise noted.
3. Device is deselected as defined by the Truth Table.
DC Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Max
Input Leakage Current
(except mode pins)
IIL
VIN = 0 to VDD
–1 uA
1 uA
FT Input Current
IIN
VDD  VIN  0 V
–100 uA
100 uA
Output Leakage Current
IOL
Output Disable, VOUT = 0 to VDD
–1 uA
1 uA
1.8 V Output High Voltage
VOH1
IOH = –4 mA, VDDQ = 1.7 V
VDDQ – 0.4 V
—
2.5 V Output High Voltage
VOH2
IOH = –8 mA, VDDQ = 2.375 V
1.7 V
—
1.8 V Output Low Voltage
VOL1
IOL = 4 mA
—
0.4 V
2.5 V Output Low Voltage
VOL2
IOL = 8 mA
—
0.4 V
Rev: 1.03 8/2013
16/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
Rev: 1.03 8/2013
—
—
ZZ VDD – 0.2 V
Device Deselected;
All other inputs
VIH or  VIL
Operating
Current
Standby
Current
Deselect
Current
55
55
ISB
ISB
Pipeline
Flow Through
Flow Through
Pipeline
IDD
100
100
245
25
IDD
IDDQ
Flow Through
IDD
330
35
IDD
IDDQ
Flow Through
Pipeline
355
70
120
120
75
75
265
25
350
35
290
45
375
70
–40
to
85°C
-333
0
to
70°C
270
45
IDD
IDDQ
IDD
Symbol
IDDQ
Pipeline
Mode
Notes:
1. IDD and IDDQ apply to any combination of VDD1, VDD2, VDDQ1, and VDDQ2 operation.
2. All parameters listed are worst case scenario.
(x18)
Device Selected;
All other inputs
VIH or VIL
Output open
(x32/
x36)
Test Conditions
Parameter
Operating Currents
100
100
55
55
225
20
265
25
240
40
295
50
0
to
70°C
120
120
75
75
245
20
285
25
260
40
315
50
–40
to
85°C
-250
100
100
55
55
195
15
230
20
215
35
250
40
0
to
70°C
120
120
75
75
215
15
250
20
235
35
270
40
–40
to
85°C
-200
100
100
55
55
185
15
200
15
200
30
210
30
0
to
70°C
120
120
75
75
205
15
220
15
220
30
230
30
–40
to
85°C
-150
mA
mA
mA
mA
mA
mA
mA
mA
Unit
GS8321Z18/32/36AD-xxxV
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
17/31
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
AC Electrical Characteristics
Pipeline
Flow
Through
Parameter
Symbol
Clock Cycle Time
-333
-250
-200
-150
Unit
Min
Max
Min
Max
Min
Max
Min
Max
tKC
3.0
—
4.0
—
5.0
—
6.7
—
ns
Clock to Output Valid
tKQ
—
3.0
—
3.0
—
3.0
—
3.8
ns
Clock to Output Invalid
tKQX
1.5
—
1.5
—
1.5
—
1.5
—
ns
Clock to Output in Low-Z
tLZ1
1.5
—
1.5
—
1.5
—
1.5
—
ns
Setup time
tS
1.0
—
1.2
—
1.4
—
1.5
—
ns
Hold time
tH
0.1
—
0.2
—
0.4
—
0.5
—
ns
Clock Cycle Time
tKC
5.0
—
5.5
—
6.5
—
7.5
—
ns
Clock to Output Valid
tKQ
—
5.0
—
5.5
—
6.5
—
7.5
ns
Clock to Output Invalid
tKQX
2.0
—
2.0
—
2.0
—
2.0
—
ns
Clock to Output in Low-Z
tLZ1
2.0
—
2.0
—
2.0
—
2.0
—
ns
Setup time
tS
1.3
—
1.5
—
1.5
—
1.5
—
ns
Hold time
tH
0.3
—
0.5
—
0.5
—
0.5
—
ns
Clock HIGH Time
tKH
1.0
—
1.3
—
1.3
—
1.5
—
ns
Clock LOW Time
tKL
1.2
—
1.5
—
1.5
—
1.7
—
ns
Clock to Output in
High-Z
tHZ1
1.5
3.0
1.5
3.0
1.5
3.0
1.5
3.8
ns
G to Output Valid
tOE
—
3.0
—
3.0
—
3.0
—
3.8
ns
G to output in Low-Z
tOLZ1
0
—
0
—
0
—
0
—
ns
G to output in High-Z
tOHZ1
—
3.0
—
3.0
—
3.0
—
3.8
ns
ZZ setup time
tZZS2
5
—
5
—
5
—
5
—
ns
ZZ hold time
tZZH2
1
—
1
—
1
—
1
—
ns
ZZ recovery
tZZR
20
—
20
—
20
—
20
—
ns
Notes:
1. These parameters are sampled and are not 100% tested.
2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold
times as specified above.
Rev: 1.03 8/2013
18/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Pipeline Mode Timing (NBT)
Write A
Read B
Suspend
Read C
tKH
Write D
Write No-op
Read E
Deselect
tKC
tKL
CK
tH
tS
A
A
B
C
D
E
tH
tS
CKE
tH
tS
E*
tH
tS
ADV
tH
tS
W
tH
tH
tS
tS
Bn
tH
tLZ
tKQ
tS
DQ
Rev: 1.03 8/2013
D(A)
Q(B)
Q(C)
D(D)
19/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
tHZ
tKQX
Q(E)
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Flow Through Mode Timing (NBT)
Write A
Write B
Write B+1
Read C
Cont
Read D
Write E
Read F
Write G
tKL
tKH
tKC
CK
tH
tS
CKE
tH
tS
E
tH
tS
ADV
tH
tS
W
tH
tS
Bn
tH
tS
A0–An
A
B
C
D
E
F
G
tKQ
tH
tKQ
tLZ
tS
D(A)
DQ
D(B)
D(B+1)
tKQX
tHZ
Q(C)
Q(D)
tLZ
D(E)
tKQX
Q(F)
D(G)
tOLZ
tOE
tOHZ
G
*Note: E = High(False) if E1 = 1 or E2 = 0 or E3 = 1
JTAG Port Operation
Overview
The JTAG Port on this RAM operates in a manner that is compliant with IEEE Standard 1149.1-1990, a serial boundary scan
interface standard (commonly referred to as JTAG). The JTAG Port input interface levels scale with VDD. The JTAG output
drivers are powered by VDDQ.
Disabling the JTAG Port
It is possible to use this device without utilizing the JTAG port. The port is reset at power-up and will remain inactive unless
clocked. TCK, TDI, and TMS are designed with internal pull-up circuits.To assure normal operation of the RAM with the JTAG
Port unused, TCK, TDI, and TMS may be left floating or tied to either VDD or VSS. TDO should be left unconnected.
Rev: 1.03 8/2013
20/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
JTAG Pin Descriptions
Pin
Pin Name
I/O
Description
TCK
Test Clock
In
Clocks all TAP events. All inputs are captured on the rising edge of TCK and all outputs propagate
from the falling edge of TCK.
TMS
Test Mode Select
In
The TMS input is sampled on the rising edge of TCK. This is the command input for the TAP
controller state machine. An undriven TMS input will produce the same result as a logic one input
level.
In
The TDI input is sampled on the rising edge of TCK. This is the input side of the serial registers
placed between TDI and TDO. The register placed between TDI and TDO is determined by the
state of the TAP Controller state machine and the instruction that is currently loaded in the TAP
Instruction Register (refer to the TAP Controller State Diagram). An undriven TDI pin will produce
the same result as a logic one input level.
TDI
Test Data In
TDO
Test Data Out
Output that is active depending on the state of the TAP state machine. Output changes in
Out response to the falling edge of TCK. This is the output side of the serial registers placed between
TDI and TDO.
Note:
This device does not have a TRST (TAP Reset) pin. TRST is optional in IEEE 1149.1. The Test-Logic-Reset state is entered while TMS is
held high for five rising edges of TCK. The TAP Controller is also reset automaticly at power-up.
JTAG Port Registers
Overview
The various JTAG registers, refered to as Test Access Port orTAP Registers, are selected (one at a time) via the sequences of 1s
and 0s applied to TMS as TCK is strobed. Each of the TAP Registers is a serial shift register that captures serial input data on the
rising edge of TCK and pushes serial data out on the next falling edge of TCK. When a register is selected, it is placed between the
TDI and TDO pins.
Instruction Register
The Instruction Register holds the instructions that are executed by the TAP controller when it is moved into the Run, Test/Idle, or
the various data register states. Instructions are 3 bits long. The Instruction Register can be loaded when it is placed between the
TDI and TDO pins. The Instruction Register is automatically preloaded with the IDCODE instruction at power-up or whenever the
controller is placed in Test-Logic-Reset state.
Bypass Register
The Bypass Register is a single bit register that can be placed between TDI and TDO. It allows serial test data to be passed through
the RAM’s JTAG Port to another device in the scan chain with as little delay as possible.
Boundary Scan Register
The Boundary Scan Register is a collection of flip flops that can be preset by the logic level found on the RAM’s input or I/O pins.
The flip flops are then daisy chained together so the levels found can be shifted serially out of the JTAG Port’s TDO pin. The
Boundary Scan Register also includes a number of place holder flip flops (always set to a logic 1). The relationship between the
device pins and the bits in the Boundary Scan Register is described in the Scan Order Table following. The Boundary Scan
Register, under the control of the TAP Controller, is loaded with the contents of the RAMs I/O ring when the controller is in
Capture-DR state and then is placed between the TDI and TDO pins when the controller is moved to Shift-DR state. SAMPLE-Z,
SAMPLE/PRELOAD and EXTEST instructions can be used to activate the Boundary Scan Register.
Rev: 1.03 8/2013
21/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
JTAG TAP Block Diagram
·
·
·
·
·
·
·
·
Boundary Scan Register
·
·
1
·
M*
0
0
Bypass Register
2 1 0
Instruction Register
TDI
TDO
ID Code Register
31 30 29
·
· ··
2 1 0
Control Signals
TMS
Test Access Port (TAP) Controller
TCK
* For the value of M, see the BSDL file, which is available at by contacting us at [email protected].
Identification (ID) Register
The ID Register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in
Capture-DR state with the IDCODE command loaded in the Instruction Register. The code is loaded from a 32-bit on-chip ROM.
It describes various attributes of the RAM as indicated below. The register is then placed between the TDI and TDO pins when the
controller is moved into Shift-DR state. Bit 0 in the register is the LSB and the first to reach TDO when shifting begins.
GSI Technology
JEDEC Vendor
ID Code
Not Used
Bit #
Presence Register
ID Register Contents
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0
X
1
X
Rev: 1.03 8/2013
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
22/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
0 0 1 1 0 1 1 0 0 1
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Tap Controller Instruction Set
Overview
There are two classes of instructions defined in the Standard 1149.1-1990; the standard (Public) instructions, and device specific
(Private) instructions. Some Public instructions are mandatory for 1149.1 compliance. Optional Public instructions must be
implemented in prescribed ways. The TAP on this device may be used to monitor all input and I/O pads, and can be used to load
address, data or control signals into the RAM or to preload the I/O buffers.
When the TAP controller is placed in Capture-IR state the two least significant bits of the instruction register are loaded with 01.
When the controller is moved to the Shift-IR state the Instruction Register is placed between TDI and TDO. In this state the desired
instruction is serially loaded through the TDI input (while the previous contents are shifted out at TDO). For all instructions, the
TAP executes newly loaded instructions only when the controller is moved to Update-IR state. The TAP instruction set for this
device is listed in the following table.
JTAG Tap Controller State Diagram
1
0
Test Logic Reset
0
Run Test Idle
1
Select DR
1
Select IR
0
0
1
1
Capture DR
Capture IR
0
0
Shift DR
1
1
Shift IR
0
1
1
Exit1 DR
0
Exit1 IR
0
0
Pause DR
1
Exit2 DR
1
Update DR
1
1
0
0
Pause IR
1
Exit2 IR
0
1
0
0
Update IR
1
0
Instruction Descriptions
BYPASS
When the BYPASS instruction is loaded in the Instruction Register the Bypass Register is placed between TDI and TDO. This
occurs when the TAP controller is moved to the Shift-DR state. This allows the board level scan path to be shortened to facilitate testing of other devices in the scan path.
Rev: 1.03 8/2013
23/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
SAMPLE/PRELOAD
SAMPLE/PRELOAD is a Standard 1149.1 mandatory public instruction. When the SAMPLE / PRELOAD instruction is
loaded in the Instruction Register, moving the TAP controller into the Capture-DR state loads the data in the RAMs input and
I/O buffers into the Boundary Scan Register. Boundary Scan Register locations are not associated with an input or I/O pin, and
are loaded with the default state identified in the Boundary Scan Chain table at the end of this section of the datasheet. Because
the RAM clock is independent from the TAP Clock (TCK) it is possible for the TAP to attempt to capture the I/O ring contents
while the input buffers are in transition (i.e. in a metastable state). Although allowing the TAP to sample metastable inputs will
not harm the device, repeatable results cannot be expected. RAM input signals must be stabilized for long enough to meet the
TAPs input data capture set-up plus hold time (tTS plus tTH). The RAMs clock inputs need not be paused for any other TAP
operation except capturing the I/O ring contents into the Boundary Scan Register. Moving the controller to Shift-DR state then
places the boundary scan register between the TDI and TDO pins.
EXTEST
EXTEST is an IEEE 1149.1 mandatory public instruction. It is to be executed whenever the instruction register is loaded with
all logic 0s. The EXTEST command does not block or override the RAM’s input pins; therefore, the RAM’s internal state is
still determined by its input pins.

Typically, the Boundary Scan Register is loaded with the desired pattern of data with the SAMPLE/PRELOAD command.
Then the EXTEST command is used to output the Boundary Scan Register’s contents, in parallel, on the RAM’s data output
drivers on the falling edge of TCK when the controller is in the Update-IR state.

Alternately, the Boundary Scan Register may be loaded in parallel using the EXTEST command. When the EXTEST instruction is selected, the sate of all the RAM’s input and I/O pins, as well as the default values at Scan Register locations not associated with a pin, are transferred in parallel into the Boundary Scan Register on the rising edge of TCK in the Capture-DR
state, the RAM’s output pins drive out the value of the Boundary Scan Register location with which each output pin is associated.
IDCODE
The IDCODE instruction causes the ID ROM to be loaded into the ID register when the controller is in Capture-DR mode and
places the ID register between the TDI and TDO pins in Shift-DR mode. The IDCODE instruction is the default instruction
loaded in at power up and any time the controller is placed in the Test-Logic-Reset state.
SAMPLE-Z
If the SAMPLE-Z instruction is loaded in the instruction register, all RAM outputs are forced to an inactive drive state (highZ) and the Boundary Scan Register is connected between TDI and TDO when the TAP controller is moved to the Shift-DR
state.
RFU
These instructions are Reserved for Future Use. In this device they replicate the BYPASS instruction.
Rev: 1.03 8/2013
24/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
JTAG TAP Instruction Set Summary
Instruction
Code
Description
Notes
EXTEST
000
Places the Boundary Scan Register between TDI and TDO.
1
IDCODE
001
Preloads ID Register and places it between TDI and TDO.
1, 2
SAMPLE-Z
010
Captures I/O ring contents. Places the Boundary Scan Register between TDI and
TDO.
Forces all RAM output drivers to High-Z.
1
RFU
011
Do not use this instruction; Reserved for Future Use.
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.
1
SAMPLE/
PRELOAD
100
Captures I/O ring contents. Places the Boundary Scan Register between TDI and
TDO.
1
GSI
101
GSI private instruction.
1
RFU
110
Do not use this instruction; Reserved for Future Use.
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.
1
BYPASS
111
Places Bypass Register between TDI and TDO.
1
Notes:
1. Instruction codes expressed in binary, MSB on left, LSB on right.
2. Default instruction automatically loaded at power-up and in test-logic-reset state.
Rev: 1.03 8/2013
25/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
JTAG Port Recommended Operating Conditions and DC Characteristics (1.8/2.5 V Version)
Parameter
Symbol
Min.
Max.
Unit Notes
1.8 V Test Port Input Low Voltage
VILJ1
–0.3
0.3 * VDD1
V
1
2.5 V Test Port Input Low Voltage
VILJ2
–0.3
0.3 * VDD2
V
1
1.8 V Test Port Input High Voltage
VIHJ1
0.6 * VDD1
VDD1 +0.3
V
1
2.5 V Test Port Input High Voltage
VIHJ2
0.6 * VDD2
VDD2 +0.3
V
1
TMS, TCK and TDI Input Leakage Current
IINHJ
–300
1
uA
2
TMS, TCK and TDI Input Leakage Current
IINLJ
–1
100
uA
3
TDO Output Leakage Current
IOLJ
–1
1
uA
4
Test Port Output High Voltage
VOHJ
1.7
—
V
5, 6
Test Port Output Low Voltage
VOLJ
—
0.4
V
5, 7
Test Port Output CMOS High
VOHJC
VDDQ – 100 mV
—
V
5, 8
Test Port Output CMOS Low
VOLJC
—
100 mV
V
5, 9
Notes:
1. Input Under/overshoot voltage must be –2 V < Vi < VDDn +2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tTKC.
2. VILJ  VIN VDDn
3. 0 V VIN VILJn
4. Output Disable, VOUT = 0 to VDDn
5. The TDO output driver is served by the VDDQ supply.
6. IOHJ = –4 mA
7. IOLJ = + 4 mA
8. IOHJC = –100 uA
9. IOLJC = +100 uA
JTAG Port AC Test Conditions
Parameter
Conditions
Input high level
VDD – 0.2 V
Input low level
0.2 V
Input slew rate
1 V/ns
Input reference level
VDDQ/2
Output reference level
VDDQ/2
JTAG Port AC Test Load
DQ
50
30pF*
VDDQ/2
* Distributed Test Jig Capacitance
Notes:
1. Include scope and jig capacitance.
2. Test conditions as shown unless otherwise noted.
Rev: 1.03 8/2013
26/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
JTAG Port Timing Diagram
tTKC
tTKH
tTKL
TCK
tTH
tTS
TDI
tTH
tTS
TMS
tTKQ
TDO
tTH
tTS
Parallel SRAM input
JTAG Port AC Electrical Characteristics
Parameter
Symbol
Min
Max
Unit
TCK Cycle Time
tTKC
50
—
ns
TCK Low to TDO Valid
tTKQ
—
20
ns
TCK High Pulse Width
tTKH
20
—
ns
TCK Low Pulse Width
tTKL
20
—
ns
TDI & TMS Set Up Time
tTS
10
—
ns
TDI & TMS Hold Time
tTH
10
—
ns
Boundary Scan (BSDL Files)
For information regarding the Boundary Scan Chain, or to obtain BSDL files for this part, please contact our Applications
Engineering Department at: [email protected].
Rev: 1.03 8/2013
27/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Package Dimensions—165-Bump FPBGA (Package D)
A1 CORNER
TOP VIEW
BOTTOM VIEW
Ø0.10 M C
Ø0.25 M C A B
Ø0.40~0.60 (165x)
1 2 3 4 5 6 7 8 9 10 11
A1 CORNER
11 10 9 8 7 6 5 4 3 2 1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
1.0
14.0
15±0.05
1.0
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
A
1.0
1.0
10.0
0.15 C
B
Rev: 1.03 8/2013
SEATING PLANE
0.20(4x)
0.36~0.46
1.40 MAX.
C
13±0.05
28/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Ordering Information for GSI Synchronous Burst RAMs
Org
Part Number1
Type
Voltage
Option
Package
Speed2
(MHz/ns)
TJ3
2M x 18
GS8321Z18AD-333V
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
C
2M x 18
GS8321Z18AD-250V
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
C
2M x 18
GS8321Z18AD-200V
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
C
2M x 18
GS8321Z18AD-150V
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
C
1M x 32
GS8321Z32AD-333V
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
C
1M x 32
GS8321Z32AD-250V
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
C
1M x 32
GS8321Z32AD-200V
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
C
1M x 32
GS8321Z32AD-150V
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
C
1M x 36
GS8321Z36AD-333V
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
C
1M x 36
GS8321Z36AD-250V
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
C
1M x 36
GS8321Z36AD-200V
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
C
1M x 36
GS8321Z36AD-150V
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
C
2M x 18
GS8321Z18AD-333IV
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
I
2M x 18
GS8321Z18AD-250IV
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
I
2M x 18
GS8321Z18AD-200IV
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
I
2M x 18
GS8321Z18AD-150IV
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
I
1M x 32
GS8321Z32AD-333IV
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
I
1M x 32
GS8321Z32AD-250IV
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
I
1M x 32
GS8321Z32AD-200IV
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
I
1M x 32
GS8321Z32AD-150IV
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
I
1M x 36
GS8321Z36AD-333IV
NBT
1.8 V or 2.5 V
165 BGA
333/5.0
I
1M x 36
GS8321Z36AD-250IV
NBT
1.8 V or 2.5 V
165 BGA
250/5.5
I
1M x 36
GS8321Z36AD-200IV
NBT
1.8 V or 2.5 V
165 BGA
200/6.5
I
1M x 36
GS8321Z36AD-150IV
NBT
1.8 V or 2.5 V
165 BGA
150/7.5
I
2M x 18
GS8321Z18AGD-333V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
C
2M x 18
GS8321Z18AGD-250V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
C
2M x 18
GS8321Z18AGD-200V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
C
2M x 18
GS8321Z18AGD-150V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
C
1M x 32
GS8321Z32AGD-333V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
C
1M x 32
GS8321Z32AGD-250V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
C
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. 
Example: GS8321Z18AD-150IVT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. C = Commercial Temperature Range. I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.03 8/2013
29/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
Ordering Information for GSI Synchronous Burst RAMs
Org
Part Number1
Type
Voltage
Option
Package
Speed2
(MHz/ns)
TJ3
1M x 32
GS8321Z32AGD-200V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
C
1M x 32
GS8321Z32AGD-150V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
C
1M x 36
GS8321Z36AGD-333V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
C
1M x 36
GS8321Z36AGD-250V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
C
1M x 36
GS8321Z36AGD-200V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
C
1M x 36
GS8321Z36AGD-150V
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
C
2M x 18
GS8321Z18AGD-333IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
I
2M x 18
GS8321Z18AGD-250IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
I
2M x 18
GS8321Z18AGD-200IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
I
2M x 18
GS8321Z18AGD-150IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
I
1M x 32
GS8321Z32AGD-333IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
I
1M x 32
GS8321Z32AGD-250IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
I
1M x 32
GS8321Z32AGD-200IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
I
1M x 32
GS8321Z32AGD-150IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
I
1M x 36
GS8321Z36AGD-333IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
333/5.0
I
1M x 36
GS8321Z36AGD-250IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
250/5.5
I
1M x 36
GS8321Z36AGD-200IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
200/6.5
I
1M x 36
GS8321Z36AGD-150IV
NBT
1.8 V or 2.5 V
RoHS-compliant 165 BGA
150/7.5
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. 
Example: GS8321Z18AD-150IVT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. C = Commercial Temperature Range. I = Industrial Temperature Range.
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are
covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings.
Rev: 1.03 8/2013
30/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
GS8321Z18/32/36AD-xxxV
36Mb Sync SRAM Datasheet Revision History
New File
Types of Changes
Format or Content
Page;Revisions;Reason
• Creation of new datasheet
8321ZxxA_V_r1
8321ZxxA_V_r1_01
Content
• Updated Absolute Maximum Ratings
• Added thermal information
8321ZxxA_V_r1_02
Content
• Updated to reflect MP status
8321ZxxA_V_r1_03
Content
• Updated Op current numbers
• Updated tHZ, tOE, and tOHZ to 3.0 ns for 333 and 300 MHz
Rev: 1.03 8/2013
31/31
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2011, GSI Technology
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
GSI Technology:
GS8321Z18AD-150V GS8321Z18AGD-200V GS8321Z18AGD-150V GS8321Z32AD-333V GS8321Z18AD-200V
GS8321Z32AD-150V GS8321Z18AD-333V GS8321Z18AGD-150IV GS8321Z32AD-333IV GS8321Z32AD-250IV
GS8321Z36AGD-200V GS8321Z36AGD-150IV GS8321Z36AD-200V GS8321Z32AD-150IV GS8321Z36AGD-333IV
GS8321Z18AD-200IV GS8321Z18AGD-250V GS8321Z18AGD-250IV GS8321Z36AD-333V GS8321Z36AD-200IV
GS8321Z36AD-250V GS8321Z36AGD-150V GS8321Z18AD-250IV GS8321Z18AD-333IV GS8321Z36AGD-250IV
GS8321Z32AD-200IV GS8321Z36AGD-250V GS8321Z18AGD-200IV GS8321Z36AD-150V GS8321Z36AD-250IV
GS8321Z36AGD-333V GS8321Z36AD-150IV GS8321Z18AD-250V GS8321Z32AD-250V GS8321Z18AGD-333IV
GS8321Z18AGD-333V GS8321Z18AD-150IV GS8321Z32AD-200V GS8321Z36AD-333IV GS8321Z36AGD-200IV