
GS71108ATP/J/SJ/U
128K x 8
1Mb Asynchronous SRAM
7, 8, 10, 12 ns
3.3 V VDD
Center VDD and VSS
SOJ, TSOP, FP-BGA
Commercial Temp
Industrial Temp
Rev: 1.08 6/2006
1/16
© 2001, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Features
• Fast access time: 7, 8, 10, 12 ns
• CMOS low power operation: 140/120/95/80 mA at minimum
cycle time
• Single 3.3 V power supply
• All inputs and outputs are TTL-compatible
• Fully static operation
• Industrial Temperature Option: –40° to 85°C
• Package line up
J:
400 mil, 32-pin SOJ package
GJ : RoHS-compliant 400 mil, 32-pin SOJ package
TP: 400 mil, 32-pin TSOP Type II package
GP: RoHS-compliant 400 mil, 32-pin TSOP Type II
package
SJ: 300 mil, 32-pin SOJ package
U:
6 mm x 8 mm Fine Pitch Ball Grid Array package
GU: RoHS-compliant 6 mm x 8 mm Fine Pitch Ball Grid
Array package
Description
The GS71108A is a high speed CMOS Static RAM organized
as 131,072 words by 8 bits. Static design eliminates the need
for external clocks or timing strobes. The GS operates on a
single 3.3 V power supply and all inputs and outputs are TTL-
compatible. The GS71108A is available in a 6 mm x 8 mm
Fine Pitch BGA package, as well as in 300 mil and 400 mil
SOJ and 400 mil TSOP Type-II packages.
Pin Descriptions
Symbol
Description
A0–A16
Address input
DQ1–DQ8
Data input/output
CE
Chip enable input
WE
Write enable input
OE
Output enable input
V
+3.3 V power supply
V
Ground
NC
No connect
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A3
A2
A1
A0
CE
DQ1
DQ2
VDD
VSS
DQ3
DQ4
WE
A16
A15
A14
A13
A4
A5
A6
A7
OE
DQ8
DQ7
VSS
VDD
DQ6
DQ5
A8
A9
A10
A11
A12
32-pin
400 mil SOJ
300 mil SOJ
&
&
400 mil TSOP II
SOJ & TSOP-II 128K x 8-Pin Configuration
Packages J, TP, and SJ
1
2
3
4
5
6
A
NC
OE
A2
A6
A7
NC
B
DQ1
NC
A1
A5
CE
DQ8
C
DQ2
NC
A0
A4
NC
DQ7
D
VSS
NC
NC
A3
NC
VDD
E
VDD
NC
NC
NC
NC
VSS
F
DQ3
NC
A14
A11
DQ5
DQ6
G
DQ4
NC
A15
A12
WE
A8
H
NC
A10
A16
A13
A9
NC
Fine Pitch BGA 128K x 8-Bump Configuration
Package U
6 mm x 8 mm, 0.75 mm Bump Pitch
Top View
DD
SS