CP82C59A-5 – HARRIS

Overview

The HARRIS CP82C59A-5 is a high-performance CMOS Programmable Interrupt Controller (PIC) designed to manage interrupt requests from peripheral devices for microprocessors like the 80C86. Its primary function is to prioritize and vector these interrupts, significantly reducing the burden on the CPU. A critical design consideration when integrating the CP82C59A-5 is managing the potential for interrupt latency, which can be exacerbated by cascading multiple PICs or by inefficient interrupt service routine (ISR) design, impacting real-time system responsiveness. This device offers robust interrupt handling capabilities essential for complex embedded systems.

Key Features

• Interrupt Controller Type: Programmable Interrupt Controller (PIC)
• Interface: System Bus (compatible with 80C86/80C88)
• Operating Voltage: 4.5V to 5.5V
• Package: 28-DIP (0.600″ width)
• Mounting Type: Through Hole
• CMOS Technology for Low Power Consumption

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Managing multiple I/O device interrupts in embedded controllers.
• Prioritizing and vectoring asynchronous event notifications in real-time operating systems (RTOS).
• Facilitating interrupt-driven data acquisition in industrial automation.
• Coordinating peripheral communication in legacy microprocessor-based designs.