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The 2064C is a 8K-byte CMOS static RAM. The 2064C has low power consumption, and its input/output
level is compatible with the ITL ICS. Figure A-8 shows the 2064C pin diagram, and Figure A-9 shows
a block diagram for the 2064C static RAM.
Features
Capacity of 8192 words X 8 bits
. ITL-compatible
Power supply + 5V DC
28-pin DIP Switch
Functions
AO - Al 2
Input address
w
Write enable
-
Output enable
Chip select
DO - D7
Input/Output data
NC
No connection
AO
At
A3
A4
Logic
Fig. A-9. 2064C SRAM Block Diagram
H
x
—
L
L
H
L
H
L
H
NOTES: 1. X = HIGH or L O W
2. – =
HIGH, LOW or High-impedance
6
02
03
4
05
D
Table A-6. 2064C Truth Table
—
—
—
—
x
L
L
H
H
H
A-9
A ?
L-
A 6
5
A 4
2 0 6
7
A 3
8
A 2
10
D 2
-
13
D 3
Vss
14
Fig. A-8. 2064C Pin Diagram
DATA 1/0
—
High impedance
—
High impedance
Input data
Stable
Output data
Stable
High impedance
Stable
REV.-A
25 A8
24 A 9
23 All
4 C
20 KI
19 D7
17 0 5
16 D4
MODE
Wait
Wait
Read
Write
Output disable
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