UPD43256B-AXXX 查看數據表（PDF） - NEC => Renesas Technology

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UPD43256B-AXXX

256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT EXTENDED TEMPERATURE OPERATION

NEC => Renesas Technology 

Block Diagram

μPD43256B-X

A0

Address

Row

Memory cell array

buffer

decoder

262,144 bits

A14

I/O1

Input data

Sense amplifier / Switching circuit

Output data

I/O8

controller

Column decoder

controller

Address buffer

/CS

/OE

/WE

VCC

GND

Truth Table

/CS

/OE

/WE

H

×

×

L

H

H

L

×

L

L

L

H

Remark × : VIH or VIL

Mode

Not selected

Output disable

Write

Read

I/O

High impedance

DIN

DOUT

Supply current

ISB

ICCA

4

Data Sheet M11012EJ6V0DS

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