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REV.-A
A.1.5 HM6264ALSP-12 CMOS ST-RAM
This is a 8K-byte CMOS static RAM which has low power consumption, and its input/output level is
compatible with the TTL
ICS.
Features
● Capacity of 8192 words
X 8 bits
● 1/0 with
ITL compatible
● Power supply
+5V DC
●
C’S access time . . . 120ns
● 28 pins (DIP)
Functions
● AO - Al 2 Input address
● WE Write enable
● w
Output enable
.
W, CS2 Chip select
● DO - D7 Input/Output data
● NC No connection
NC 1
A12 2
A6 4
A5 5
A3 7
A2 8
Al 9
AO 10
DO 11
DI 12
D2 13
“Ii
28 VOD
27 =
26 CS2
25
A8
24 A9
2064
23 All
D
22 G
B
21 AIO
20 WI
D
19 1)7
D
18 D6
B
17 05
16 D4
D
15 D3
1 4
Figure A-1 2. HM6264ALSP-12 Pin Diagram
j~a U-J ll_---l
All
4
Row
Gala
A12
7
Csl
D
cst.cs2
Cmlml
/
a
CS2 Logic
00 01 02
D3 04 05 D6 07
Figure A-1 3.
HM6264ALSP-12 Block Diagram
A-2 1