ID82C59A-5

CMOS优先中断控制器 CMOS Priority Interrupt Controller

Description

The 82C59A is a high performance CMOS Priority Interrupt Controller manufactured using an advanced 2µm CMOS process. The 82C59A is designed to relieve the sys tem CPU from the task of polling in a multilevel priority system. The high speed and industry standard configuration of the 82C59A make it compatible with microprocessors such as 80C286, 80286, 80C86/88, 8086/88, 8080/85 and NSC800.

Features

• 12.5MHz, 8MHz and 5MHz Versions Available

\- 12.5MHz Operation . . . . . . . . . . . . . . . . . . . 82C59A-12

\- 8MHz Operation . . . . . . . . . . . . . . . . . . . . . . . 82C59A

\- 5MHz Operation . . . . . . . . . . . . . . . . . . . . . . 82C59A-5

• High Speed, “No Wait-State” Operation with 12.5MHz 80C286 and 8MHz 80C86/88

• Pin Compatible with NMOS 8259A

• 80C86/88/286 and 8080/85/86/88/286 Compatible

• Eight-Level Priority Controller, Expandable to 64 Levels

• Programmable Interrupt Modes

• Individual Request Mask Capability

• Fully Static Design

• Fully TTL Compatible

• Low Power Operation

\- ICCSB . . . . . . . . . . . . . . . . . . . . . . . . . 10µA Maximum

\- ICCOP . . . . . . . . . . . . . . . . . . . . . 1mA/MHz Maximum

• Single 5V Power Supply

• Operating Temperature Ranges

\- C82C59A . . . . . . . . . . . . . . . . . . . . . . . . .0°C to +70°C

\- I82C59A . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C

\- M82C59A . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C