GS74117AX-7I GSI [GSI Technology], GS74117AX-7I Datasheet - Page 2

• Manufacturer Part Number: GS74117AX-7I
• Description: 256K x 16 4Mb Asynchronous SRAM
• Manufacturer: GSI [GSI Technology]

Truth Table
Note: X: “H” or “L”
Rev: 1.02 10/2002
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Block Diagram
CE
H
L
L
L
L
OE
X
X
H
X
L
WE
X
H
H
X
L
WE
OE
UB _____
LB _____
CE
A
A
17
0
LB
H
H
H
X
L
L
L
L
X
Address
Control
Buffer
Input
UB
X
H
H
X
H
L
L
L
L
Decoder
2/12
Row
Not Write, High Z
DQ
Not Selected
1
High Z
High Z
High Z
Read
Read
Write
Write
to DQ
Memory Array
DQ
I/O Buffer
8
Column
Decoder
1
DQ
16
Not Write, High Z
DQ
Not Selected
9
High Z
High Z
High Z
Read
Read
Write
Write
to DQ
© 2001, Giga Semiconductor, Inc.
16
V
DD
GS74117AX
ISB
Current
1
I
DD
, ISB
2