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

MSM81C55-5RS/GS/JS

NOTICE ON REPLACING LOW-SPEED DEVICES WITH HIGH-SPEED DEVICES

The conventional low speed devices are replaced by high-speed devices as shown below.

When you want to replace your low speed devices with high-speed devices, read the replacement

notice given on the next pages.

High-speed device (New)

M80C85AH

M80C86A-10

M80C88A-10

M82C84A-2

M81C55-5

M82C37B-5

M82C51A-2

M82C53-2

M82C55A-2

Low-speed device (Old)

M80C85A/M80C85A-2

M80C86A/M80C86A-2

M80C88A/M80C88A-2

M82C84A/M82C84A-5

M81C55

M82C37A/M82C37A-5

M82C51A

M82C53-5

M82C55A-5

Remarks

8bit MPU

16bit MPU

8bit MPU

Clock generator

RAM.I/O, timer

DMA controller

USART

Timer

PPI

15/19

Share Link: