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82C55 Datasheet CMOS Programmable Peripheral Interface

Manufacturer: OKI Electric

Overview: E2O0020-27-X3 ¡ Semiconductor MSM82C55A-2RS/GS/VJS ¡ Semiconductor CMOS PROGRAMMABLE PERIPHERAL INTERFACE This version: Jan. 1998 MSM82C55A-2RS/GS/VJS Previous version: Aug.

General Description

The MSM82C55A-2 is a programmable universal I/O interface device which operates as high speed and on low power consumption due to 3m silicon gate CMOS technology.

It is the best fit as an I/O port in a system which employs the 8-bit parallel processing MSM80C85AH CPU.

This device has 24-bit I/O pins equivalent to three 8-bit I/O ports and all inputs/outputs are TTL interface compatible.

Key Features

  • High speed and low power consumption due to 3m silicon gate CMOS technology.
  • 3 V to 6 V single power supply.
  • Full static operation.
  • Programmable 24-bit I/O ports.
  • Bidirectional bus operation (Port A).
  • Bit set/reset function (Port C).
  • TTL compatible.
  • Compatible with 8255A-5.
  • 40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM82C55A-2RS).
  • 44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM82C55A.

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