8259A Interrupt Controller

8259A Interrupt Controller is designed to transfer the interrupt with highest priority to the CPU, along with interrupt address information.

Description

Benefits:

  • Can be used to assign priority levels to interrupt outputs
  • Allows cascading of multiple interrupts

Highlights:

  • Compatible with 8259A and uPD71059
  • Two modes of operation make the controller compatible with 8080/85 and 8086/88/286 microprocessors
  • Microcomputer system with I/O devices are serviced with efficient manner by using iW-8259A interrupt controller

Features:

  • Eight interrupt request input per chip
  • Up to 64 interrupt request inputs per system
  • Edge or level triggered interrupt request inputs
  • Individually maskable interrupt requests
  • Programmable interrupt request priority orders
  • Polling operation capability
  • Extended mode with cascade connection of external interrupts
  • Supports Slave mode in extended mode

Target Applications:

  • Core is designed to use with industry standard microprocessors such as 80286, 8086/8088, 8080/85.
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