msm521209 ETC-unknow, msm521209 Datasheet - Page 3

• Manufacturer Part Number: msm521209
• Description: 131,072-word 9-bit Cmos Static
• Manufacturer: ETC-unknow

¡ Semiconductor
BLOCK DIAGRAM
FUNCTION TABLE
*Don't Care ("H" or "L")
Standby
Read Cycle
Write Cycle
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
CE
WE
OE
A
A
A
A
A
A
A
A
Operating Mode
12
13
14
15
16
5
6
7
1
2
3
4
5
6
7
8
9
Control
Select
Input
Row
Data
CE
H
L
L
L
WE
H
H
*
L
A
0
A
1
A
OE
2
Memory Array
Column Select
H
512 Columns
*
L
*
Column I/O
¥ 9 Blocks
256 Rows
A
Circuits
3
A
4
A
8
A
9
A
10
Operating Contents
Output Floating
Output Floating
Data Read
Data Write
A
11
V
V
MSM521209
CC
SS
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