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82C55 Datasheet CMOS Programmable Peripheral Interface

Manufacturer: Wing Shing Computer Components

Overview: CMOS Programmable peripheral Interface.

Datasheet Details

Part number 82C55
Manufacturer Wing Shing Computer Components
File Size 476.66 KB
Description CMOS Programmable peripheral Interface
Datasheet 82C55_WingShingComputerComponents.pdf

General Description

The WS82C55A is a high performance CMOS version of the industry standard 8255A and is manufactured using a self-aligned silicon gate CMOS process (Scaled SAJI IV).

It is a general purpose programmable I/O device which may be used with many different microprocessors.

There are 24 I/O pins which may be individually programmed in 2 groups of 12 and used in 3 major modes of operation.

Key Features

  • Pin Compatible with NMOS 8255A.
  • 24 Programmable I/O Pins.
  • Fully TTL Compatible.
  • High Speed, No “Wait State” Operation with 5MHz 80C86 and 8MHz 80C88.
  • Direct Bit Set/Reset Capability.
  • Enhanced Control Word Read Capability.
  • L7 Process.
  • 2.5mA Drive Capability on All I/O Ports.
  • Low Standby Power (ICCSB).
  • . .10µA WS82C55A.

82C55 Distributor