8259 Programmable Interrupt Controller

 Detailed Description

The 8259 programmable interrupt controller handles up to eight vectored prioity interrupts for the CPU. It is cascadable for up to 64 vectored priority interrupts without additional circuitry. It is packaged in a 28-pin DIP, uses NMOS technology and requires a single + 5V supply. Circuitry is static, requiring no clock input.
The 8259 is designed to minimize the software and real time overhead in handling multi-level priority interrupts. It has several modes, permitting optimization for a variety of system requirements.

Features:
Eight-level priority controller
Expandable to 64 levels
Programmable interrupt modes
Individual request mask capability
Single +5V supply (no clocks)

28 pin DIP. Actual brand may vary from picture.
G5750