GS882ZV18/36BB/D-333/300/250/200
119-bump and 165-bump BGA
Commercial Temp
Industrial Temp
Features
• 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
• 1.8 V +10%/–10% core power supply
• 1.8 V I/O supply
• User-configurable Pipeline and Flow Through mode
• ZQ mode pin for user-selectable high/low output drive
• IEEE 1149.1 JTAG-compatible Boundary Scan
• On-chip parity encoding and error detection
• LBO pin for Linear or Interleave Burst mode
• Pin-compatible with 2M, 4M, and 18M devices
• Byte write operation (9-bit Bytes)
• 3 chip enable signals for easy depth expansion
• ZZ Pin for automatic power-down
• JEDEC-standard 119-bump BGA and 165-bump FPBGA
packages
• Pb-Free 119-bump and 165-bump BGA packages available
9Mb Pipelined and Flow Through
Synchronous NBT SRAM
333 MHz–200 MHz
1.8 V V
DD
1.8 V I/O
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 GS882ZV18/36B 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 GS882ZV18/36B is implemented with GSI's high
performance CMOS technology and is available in JEDEC-
standard 119-bump BGA and 165-bump FPBGA packages.
Functional Description
The GS882ZV18/36B is a 9Mbit 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.
Paramter Synopsis
-333
-300
2.5
3.3
225
250
5.0
5.0
180
200
-250
2.5
4.0
195
220
5.5
5.5
155
175
-200
3.0
5.0
165
185
6.5
6.5
140
155
Unit
ns
ns
mA
mA
ns
ns
mA
mA
Pipeline
3-1-1-1
t
KQ
tCycle
Curr (x18)
Curr (x32/x36)
t
KQ
tCycle
Curr (x18)
Curr (x32/x36)
2.5
3.0
245
275
4.5
4.5
195
220
Flow Through
2-1-1-1
Rev: 1.03 3/2005
1/33
© 2004, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
NoBL is a trademark of Cypress Semiconductor Corp.. NtRAM is a trademark of Samsung Electronics Co.. ZBT is a trademark of Integrated Device Technology, Inc.
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