• Part: INS8259
  • Description: Programmable Interrupt Controller
  • Manufacturer: National Semiconductor
  • Size: 864.09 KB
INS8259 Datasheet (PDF) Download
National Semiconductor
INS8259

Description

The INS8259 is a Programmable Interrupt Controller chip contained in a standard 28-pin dual-in-Iine package_ The chip, which is fabricated using N-channel silicon gate technology, functions as a versatile interrupt management device in a microcomputer system. Each INS8259 resolves interrupt requests from up to eight different sources.

Key Features

  • Performs Priority Control of up to Eight Interrupt Levels
  • Can be Expanded to Handle up to 64 Levels Through Cascading
  • Four Programmable Operating Modes
  • Programmable Interrupt Vectors, Allowing Service Routines to be Located Anywhere in Memory
  • Interrupt Request Inputs Can be Individually Masked
  • TRI-STATE@ TTL Drive Capability for Bidirectional Data and Control Buses
  • Single + 5 Volt Power Supply
  • 28-Pin Dual-in-Line Package
  • MICROBUSTM* Compatible INS8080 Family C~U Group to MICROBUS Configuration .r READY