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GS8321Z32GE Datasheet Preview

GS8321Z32GE Datasheet

36Mb Pipelined and Flow Through Synchronous NBT SRAM

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GS8321Z18/32/36E-250/225/200/166/150/133
165-Bump FP-BGA
Commercial Temp
Industrial Temp
36Mb Pipelined and Flow Through
Synchronous NBT SRAM
250 MHz–133 MHz
2.5 V or 3.3 V VDD
2.5 V or 3.3 V I/O
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
• 2.5 V or 3.3 V +10%/–10% core power 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 FP-BGA package
• RoHS-compliant 165-bump BGA package available
Functional Description
The GS8321Z18/32/36E 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 off-
chip write pulse generation required by asynchronous SRAMs
and simplifies input signal timing.
The GS8321Z18/32/36E may be configured by the user to
operate in Pipeline or Flow Through mode. Operating as a
pipelined synchronous device, in addition to the rising-edge-
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 GS8321Z18/32/36E is implemented with GSI's high
performance CMOS technology and is available in JEDEC-
standard 165-bump FP-BGA package.
Parameter Synopsis
-250 -225 -200 -166 -150 -133 Unit
Pipeline
tKQ
tCycle
2.5 2.7 3.0 3.5 3.8 4.0 ns
4.0 4.4 5.0 6.0 6.6 7.5 ns
3-1-1-1 Curr (x18) 285 265 245 220 210 185 mA
Curr (x32/x36) 350 320 295 260 240 215 mA
Flow
Through
2-1-1-1
tKQ
tCycle
Curr (x18)
Curr (x32/x36)
6.5
6.5
205
235
7.0
7.0
195
225
7.5
7.5
185
210
8.0
8.0
175
200
8.5
8.5
165
190
8.5
8.5
155
175
ns
ns
mA
mA
Rev: 1.08 2/2011
1/34
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2003, GSI Technology




GSI Technology

GS8321Z32GE Datasheet Preview

GS8321Z32GE Datasheet

36Mb Pipelined and Flow Through Synchronous NBT SRAM

No Preview Available !

GS8321Z18/32/36E-250/225/200/166/150/133
165 Bump BGA—x18 Commom I/O—Top View (Package E)
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—15 mm x 17 mm Body—1.0 mm Bump Pitch
Rev: 1.08 2/2011
2/34
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2003, GSI Technology


Part Number GS8321Z32GE
Description 36Mb Pipelined and Flow Through Synchronous NBT SRAM
Maker GSI Technology
Total Page 30 Pages
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