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描述 Description

The Intersil 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.

特性 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