GS74108ATP Datasheet, PDF (1/13 Pages) GSI Technology – 512K x 8 4Mb Asynchronous SRAM

GS74108ATP/J/X
SOJ, TSOP, FP-BGA
Commercial Temp
Industrial Temp
512K x 8
4Mb Asynchronous SRAM
8, 10, 12 ns
3.3 V V_DD
Center V_DD and V_SS
Features
• 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
• Industrial Temperature Option: –40° to 85°C
• Package line up
J: 400 mil, 36-pin SOJ package
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
GX: RoHS-compliant 6 mm x 10 mm FPBGA package
• RoHS-compliant packages available
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.
Pin Descriptions
Symbol
A0–A18
DQ1–DQ8
CE
WE
OE
V_DD
V_SS
NC
Description
Address input
Data input/output
Chip enable input
Write enable input
Output enable input
+3.3 V power supply
Ground
No connect
SOJ 512K x 8-Pin Configuration
A4
1
36
NC
A3
2
35
A5
A2
3
34
A6
A1
4
33
A7
A0
5
32
A8
CE
6
31
OE
DQ1
7
30
DQ8
DQ2
8
36-pin
29
DQ7
V_DD
9
28
400 mil SOJ
V_SS
V_SS
10
27
V_DD
DQ3
11
26
DQ6
DQ4
12
25
DQ5
WE
13
24
A9
A17
14
23
A10
A16
15
22
A11
A15
16
21
A12
A14
17
20
A18
A13
18
19
NC
FP-BGA 512K x 8 Bump Configuration (Package X)
123456
A NC OE A2 A6 A7 NC
B DQ1 NC A1 A5 CE DQ8
C DQ2 NC A0 A4 NC DQ7
D VSS NC A18 A3 NC VDD
E VDD NC A17 A9 NC VSS
F DQ3 NC A13 A10 NC DQ6
G DQ4 NC A14 A11 WE DQ5
H NC A16 A15 A12 A8 NC
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.