GS74116A Datasheet, PDF (1/14 Pages) GSI Technology – 256K x 16 4Mb Asynchronous SRAM

GS74116ATP/J/X
SOJ, TSOP, FP-BGA
256K x 16
Commercial Temp
Industrial Temp
4Mb Asynchronous SRAM
7, 8, 10, 12 ns
3.3 V V_DD
Center V_DD and V_SS
Features
• Fast access time: 7, 8, 10, 12 ns
• CMOS low power operation: 150/130/105/95 mA at
minimum cycle time
• Single 3.3 V power supply
• All inputs and outputs are TTL-compatible
• Byte control
• Fully static operation
• Industrial Temperature Option: –40° to 85°C
• Package line up
J: 400 mil, 44-pin SOJ package
TP: 400 mil, 44-pin TSOP Type II package
X: 6 mm x 10 mm Fine Pitch Ball Grid Array
package
Description
The GS74116A is a high speed CMOS Static RAM organized
as 262,144 words by 16 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 GS74116A is available in a 6 x 10 mm Fine
Pitch BGA package, 400 mil SOJ and 400 mil TSOP Type-II
packages.
SOJ 256K x 16-Pin Configuration (Package J)
A4
1
A3
2
A2
3
A1
4
A0
5
Top view
CE
6
DQ1
7
DQ2
8
DQ3
9
DQ4
10
V_DD
11
44-pin
V_SS
12
SOJ
DQ5
13
DQ6
14
DQ7
15
DQ8
16
WE
17
A15
18
A14
19
A13
20
A12
21
A16
22
44
A5
43
A6
42
A7
41
OE
40
UB
39
LB
38
DQ16
37
DQ15
36
DQ14
35
DQ13
34
V_SS
33
V_DD
32
DQ12
31
DQ11
30
DQ10
29
DQ9
28
NC
27
A8
26
A9
25
A10
24
A11
23
A17
Pin Descriptions
Symbol
A0–A17
DQ1–DQ16
CE
LB
UB
WE
OE
V_DD
V_SS
NC
Description
Address input
Data input/output
Chip enable input
Lower byte enable input
(DQ1 to DQ8)
Upper byte enable input
(DQ9 to DQ16)
Write enable input
Output enable input
+3.3 V power supply
Ground
No connect
FP-BGA 256K x 16 Bump Configuration (Package X)
123456
A LB OE A0 A1 A2 NC
B DQ16 UB A3 A4 CE DQ1
C DQ14 DQ15 A5 A6 DQ2 DQ3
D VSS DQ13 A17 A7 DQ4 VDD
E VDD DQ12 NC A16 DQ5 VSS
F DQ11 DQ10 A8 A9 DQ7 DQ6
G DQ9 NC A10 A11 WE DQ8
H NC A12 A13 A14 A15 NC
6 x 10 mm Bump Pitch
Rev: 1.03 10/2002
1/14
© 2001, Giga Semiconductor, Inc.
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.