GS74108ATP/J/X
8, 10, 12 ns
SOJ, TSOP, FP-BGA
Commercial Temp
Industrial Temp
512K x 8
4Mb Asynchronous SRAM
3.3 V V
DD
Center V and V
DD
SS
Features
SOJ 512K x 8-Pin Configuration
• Fast access time: 8, 10, 12 ns
• CMOS low power operation: 120/95/85 mA at minimum
cycle time
• Single 3.3 V power supply
• All inputs and outputs are TTL-compatible
• Fully static operation
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
1
A4
NC
A5
2
A3
3
A2
A6
4
A1
A7
5
A0
A8
• Industrial Temperature Option: –40° to 85°C
• Package line up
6
CE
OE
DQ8
DQ7
VSS
VDD
DQ6
DQ5
A9
7
DQ1
DQ2
VDD
VSS
DQ3
DQ4
WE
A17
A16
A15
A14
A13
J:
400 mil, 36-pin SOJ package
8
36-pin
GJ: RoHS-compliant 400 mil, 36-pin SOJ package
TP: 400 mil, 44-pin TSOP-II package
GP: RoHS-compliant 400 mil, 44-pin TSOP-II package
X: 6 mm x 10 mm FPBGA package
9
400 mil SOJ
10
11
12
13
14
15
16
17
18
GX: RoHS-compliant 6 mm x 10 mm FPBGA package
• RoHS-compliant packages available
A10
A11
A12
A18
NC
Description
The GS74108A is a high speed CMOS Static RAM organized
as 524,288 words by 8 bits. Static design eliminates the need
for external clocks or timing strobes. The GS74108A operates
on a single 3.3 V power supply and all inputs and outputs are
TTL-compatible. The GS74108A is available in 400 mil SOJ,
400 mil TSOP-II, and 6 mm x 10 mm FPBGA packages.
FP-BGA 512K x 8 Bump Configuration (Package X)
1
2
3
4
5
6
Pin Descriptions
A
B
C
D
E
F
NC
OE
A2
A1
A6
A5
A7
NC
Symbol
A0–A18
DQ1–DQ8
CE
Description
Address input
DQ1 NC
DQ2 NC
CE DQ8
NC DQ7
A0
A4
Data input/output
Chip enable input
Write enable input
Output enable input
+3.3 V power supply
VSS
VDD
NC
NC
A18
A17
A13
A14
A15
A3
NC
NC
VDD
VSS
WE
A9
OE
DQ3 NC
DQ4 NC
A10
A11
A12
NC DQ6
WE DQ5
V
DD
G
H
V
Ground
SS
NC
A16
A8
NC
NC
No connect
6 mm x 10 mm
*All GSI Technology packages are at least 5/6 RoHS compliant.
Packages listed with the additional “G” designator are 6/6 RoHS compliant.
Rev: 1.07 1/2006
1/13
© 2001, Giga Semiconductor, Inc.
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.