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INS8255 Datasheet Programmable Peripheral Interface

Manufacturer: National Semiconductor (now Texas Instruments)

Download the INS8255 datasheet PDF. This datasheet also includes the INS8255N variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (INS8255N_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

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.

Overview

~National ~ Semiconductor APRIL 1978 INS8255 Programmable Peripheral Interface.

Key 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.

More Datasheets from National Semiconductor (now Texas Instruments)

Part Number Description
INS8255N Programmable Peripheral Interface
INS8250 Asynchronous Receiver/Transmitter
INS8250-B Asynchronous Receiver/Transmitter
INS8250A UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER
INS8251 Programmable Communication Interface
INS8253 Programmable Interval Timer
INS8254 N-Channel Bit Programmable Peripherallnterface
INS8257 Programmable DMA Controller
INS8259 Programmable Interrupt Controller
INS8202 Octal Buffers