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HM62256A Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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componentes Descripciรณn
Fabricante
HM62256A
32,768-word ร—8-bit High Speed CMOS Static RAM
Hitachi
Hitachi -> Renesas Electronics Hitachi
HM62256A Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
HM62256A Series
Pin Description
Symbol
Function
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
A0 โ€“ A14
Address
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
I/O0 โ€“ I/O7
Input/output
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
CS
Chip select
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
WE
Write enable
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
Block Diagram
HM62256A Series
Symbol
Function
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
OE
Output enable
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
NC
No connection
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
VCC
Power supply
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
VSS
Ground
โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€”โ€“
A5
A4
A3
A11
A9
A8
A12
A7
A6
I/O0
โ€ข
โ€ข
โ€ข
โ€ข
โ€ข
I/O7
CS
WE
OE
โ€ข
โ€ข
โ€ข
Memory Matrix
โ€ข
Row
โ€ข
โ€ข
Decoder โ€ข
512 ร— 512
โ€ข
โ€ข
โ€ข
V CC
V SS
โ€ข
Column I/O
โ€ข
โ€ข
โ€ข
Input
โ€ข
Data
Column Decoder
โ€ข
Control
โ€ข
A0 A1 A2 A10 A13 A14
โ€ขโ€ข
Timing Pulse Generator
Read/Write Control
โ€ข
โ€ข
โ€ข
โ€ข
โ€ข
โ€ข
โ€ข
3

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