81C55 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

81C55

2048-Bit CMOS STATIC RAM WITH I/O PORTS AND TIMER

Oki Electric Industry 

¡ Semiconductor

TIMING DIAGRAM

Read Cycle

CE

IO/M

AD0 - 7

ALE

RD

MSM81C55-5RS/GS/JS

tAD

Address

tAL

tLA

tLL

tRDE

tLC

Data Valid

tRD

tCC

tRDF

tCL

tRV

Write Cycle

CE

IO/M

AD0 - 7

ALE

WR

Address

tAL

tLA

tLL

tLC

Data Valid

tDW

tCL

tWD

tCC

tRV

5/19

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