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INS8255 - Programmable Peripheral Interface

This page provides the datasheet information for the INS8255, a member of the INS8255N Programmable Peripheral Interface family.

Datasheet Summary

Description

The INS8255 is a programmable peripheral interface contained in a standard, 4().pin dual in

line package.

charinel silicon gate technology, functions as a general purpose parallel input/output interface in National Semiconductor's N8080 microcomp

Features

  • Outputs Source 1 mA at 1.5 Volts.
  • 24 Programmable Input/Output Pins.
  • Direct Bit Set/Reset Capability.
  • TTL Compatible.
  • Reduces System Component Count.
  • MICROBUSiM.
  • Compatible INS8255.

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Datasheet preview – INS8255

Datasheet Details

Part number INS8255
Manufacturer National Semiconductor
File Size 760.98 KB
Description Programmable Peripheral Interface
Datasheet download datasheet INS8255 Datasheet
Additional preview pages of the INS8255 datasheet.

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  • INS8254 - N-Channel Bit Programmable Peripherallnterface
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Full PDF Text Transcription

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~National ~ Semiconductor APRIL 1978 INS8255 Programmable Peripheral Interface General Description The INS8255 is a programmable peripheral interface contained in a standard, 4().pin dual·in·line package. The chip, which is fabricated using N·charinel silicon gate technology, functions as a general·purpose parallel input/output interface in National Semiconductor's N8080 microcomputer family. The functional configura· tion of the INS8255 is programmed by the system software so that normally no external logic is required to interface peripheral devices. The INS8255 has three basic modes of operation that can be selected by the system software. In the first mode (Mode 0), the INS8255 provides simple input and outqut operations for three 8·bit ports.
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