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GS880Z32BT Datasheet Preview

GS880Z32BT Datasheet

9Mb Pipelined and Flow Through Synchronous NBT SRAM

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GS880Z18/32/36BT-333/300/250/200/150
100-Pin TQFP
Commercial Temp
Industrial Temp
9Mb Pipelined and Flow Through
Synchronous NBT SRAM
333 MHz150 MHz
2.5 V or 3.3 V VDD
2.5 V or 3.3 V I/O
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
• 2.5 V or 3.3 V +10%/10% core power supply
• 2.5 V or 3.3 V I/O supply
• User-configurable Pipeline and Flow Through mode
• 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 100-lead TQFP package
• RoHS-compliant 100-lead TQFP package available
Functional Description
The GS880Z18/32/36BT 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.
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 GS880Z18/32/36BT may be configured by the user to
operate in Pipeline or Flow Through mode. Operating as a
pipelined synchronous device, meaning that 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 GS880Z18/32/36BT is implemented with GSI's high
performance CMOS technology and is available in a JEDEC-
standard 100-pin TQFP package.
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
Paramter Synopsis
Pipeline
3-1-1-1
Flow Through
2-1-1-1
tKQ
tCycle
Curr (x18)
Curr (x32/x36)
tKQ
tCycle
Curr (x18)
Curr (x32/x36)
-333
2.5
3.0
250
290
4.5
4.5
200
230
-300
2.5
3.3
230
265
5.0
5.0
185
210
-250
2.5
4.0
200
230
5.5
5.5
160
185
-200
3.0
5.0
170
195
6.5
6.5
140
160
-150
3.8
6.7
140
160
7.5
7.5
128
145
Unit
ns
ns
mA
mA
ns
ns
mA
mA
Rev: 1.03a 6/2006
1/25
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2001, GSI Technology




GSI Technology

GS880Z32BT Datasheet Preview

GS880Z32BT Datasheet

9Mb Pipelined and Flow Through Synchronous NBT SRAM

No Preview Available !

GS880Z18/32/36BT-333/300/250/200/150
GS880Z18BT 100-Pin TQFP Pinout (Package T)
NC
NC
NC
VDDQ
VSS
NC
NC
DQB
DQB
VSS
VDDQ
DQB
DQB
FT
VDD
NC
VSS
DQB
DQB
VDDQ
VSS
DQB
DQB
DQPB
NC
VSS
VDDQ
NC
NC
NC
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
1 80
2 79
3 78
4 77
5 76
6 75
7 74
8 73
9
10
512K x 18
11 Top View
72
71
70
12 69
13 68
14 67
15 66
16 65
17 64
18 63
19 62
20 61
21 60
22 59
23 58
24 57
25 56
26 55
27 54
28 53
29 52
30 51
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
A
NC
NC
VDDQ
VSS
NC
DQPA
DQA
DQA
VSS
VDDQ
DQA
DQA
VSS
NC
VDD
ZZ
DQA
DQA
VDDQ
VSS
DQA
DQA
NC
NC
VSS
VDDQ
NC
NC
NC
Rev: 1.03a 6/2006
2/25
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2001, GSI Technology


Part Number GS880Z32BT
Description 9Mb Pipelined and Flow Through Synchronous NBT SRAM
Maker GSI Technology
Total Page 25 Pages
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