CM82C59A-12

Specialized Overview

The CM82C59A-12 is a CMOS interrupt controller compatible with the Intel 8080, 8085, 80C86, and 80C88 microprocessor architectures. Manufactured by Harris Corporation, this component manages hardware interrupt requests within embedded systems. It is housed in a CQCC28 package, providing a compact solution for processor interface applications requiring reliable interrupt handling capabilities.

Specialized Feature Summary

• Compatible with standard 8080 and 8085 instruction sets
• Supports 80C86 and 80C88 processor integration
• CMOS technology for low power consumption

Specialized Applications

• Microprocessor-based control systems
• Industrial automation controllers
• Legacy computer peripheral interfaces

Specialized Procurement Notes

Verify the specific suffix -12 against official Harris documentation to confirm operating temperature range and speed grade. Confirm RoHS compliance status as earlier Harris CMOS components may not meet current environmental standards. Ensure the CQCC28 package footprint matches the target PCB design before procurement.

Specialized Selection Notes

Select this component when interfacing legacy 8-bit or early 16-bit processors that require dedicated interrupt management. Compare pin compatibility with the standard 8259A if migrating from other manufacturers. Verify voltage levels match the system logic family to ensure signal integrity across the interrupt lines.

Specialized Part Context

This part belongs to the Harris 82C59 series of programmable interrupt controllers. The 'C' prefix typically denotes CMOS construction, distinguishing it from older bipolar variants. Harris was a significant supplier of these logic components before its semiconductor assets were acquired by Intersil and subsequently Renesas.

Specialized Replacement Considerations

Direct pin-compatible substitutes include the Intel 8259A and Motorola MC6840. Verify electrical characteristics such as input capacitance and output drive strength when substituting with generic equivalents to maintain system timing requirements.