HM62256 Hitachi Semiconductor, HM62256 Datasheet - Page 3

• Manufacturer Part Number: HM62256
• Description: 32/768-word x 8-bit High Speed CMOS Static RAM
• Manufacturer: Hitachi Semiconductor

HM62256A Series
Pin Description
Symbol
——————————————————————–
A0 – A14
——————————————————————–
I/O0 – I/O7
——————————————————————–
CS
——————————————————————–
WE
——————————————————————–
Block Diagram
I/O0
I/O7
A5
A4
A3
A11
A9
A8
A12
A7
A6
CS
WE
OE
•
•
•
•
•
Function
Address
Input/output
Chip select
Write enable
•
•
•
•
•
•
•
•
•
•
•
•
Timing Pulse Generator
Read/Write Control
Decoder
Input
Data
Control
Row
•
•
•
•
•
A0 A1 A2 A10
Symbol
——————————————————————–
OE
——————————————————————–
NC
——————————————————————–
V
——————————————————————–
V
——————————————————————–
Column Decoder
Memory Matrix
•
•
CC
SS
Column I/O
512 512
A13
A14
HM62256A Series
Function
Output enable
No connection
Power supply
Ground
•
•
•
•
•
•
•
V
V
CC
SS
3