Hm65256Blsp-12 Cmos Pseudo St-Ram (7 A - Epson LQ-1050 Technical Manual

This is a 8K-byte CMOS static RAM
compatible with the TTL ICS.
Features
Capacity of 32768 words X 8 bits
1/0 with TTL compatible
. Power supply +5V DC
. ~ access time . . . 120ns
28 pins (DIP)
Functions
AO -
Input address
W E
Write enable
OE
Output enable
Chip enable
' 1/30 - 1/07
Input/Output data
NC
No connection
L
L
L
H
H
NOTES: 1. X . . . Don't care
which has low power consumption, and its input/output level is
Address
1
Fig. A-1 9. HM65256BLSP-12 Block Diagram
Table A-8. HM65256BLSP-12 Signal Status
L H
x L
H
H
x
" L
x
H
Fig. A-IS. HM65256BLSP-12 Pin Diagram
Matrix
(256x128)x8
r
1
I
Low Z
Z
High
Z
High
Z
High
Z
High
A-2 1
A2
A
I O
1/07
1/00
1/06
1/0 I 1/0s
1/02 1/04
ONO
1/03
I
Function
Read
Write
Refresh
Standby