IS80C86

Microprocessors Overview

The IS80C86 is a 16-bit CMOS microprocessor from Harris Corporation, serving as a high-performance, low-power alternative to the NMOS 8086. It features a static design operating at speeds up to 5MHz or 8MHz depending on the specific variant (e.g., IS80C86-2). The device utilizes a 44-pin PLCC package and supports both minimum and maximum modes of operation for flexible system configuration.

Microprocessors Feature Summary

• Static CMOS design ensures zero power dissipation in the stopped state
• Pin-compatible with industry-standard NMOS 8086 processors
• Supports both Minimum and Maximum modes for scalable system architectures

Microprocessors Applications

• Industrial control systems requiring low power consumption
• Embedded applications compatible with existing 8086 hardware designs
• Multiprocessing environments utilizing Maximum mode configuration

Microprocessors Procurement Notes

Verify the specific speed grade suffix (e.g., -2 for 8MHz) against system timing requirements. Confirm package availability as bulk packaging is standard. Check for RoHS compliance status as older Harris batches may differ. Ensure compatibility with existing 8086 software and hardware interfaces before integration.

Microprocessors Selection Notes

Select the IS80C86 when a direct replacement for the NMOS 8086 is needed with improved power efficiency. Choose variants based on required clock frequency, such as the IS80C86-2 for 8MHz operation. Consider the 44-PLCC package for surface-mount assembly needs. Verify that the target application does not require radiation hardening, which is available in the HS9-80C86RH series.

Microprocessors Part Context

The IS80C86 belongs to the Harris 80C86 family of 16-bit microprocessors. It is part of a lineage that includes variants like the IS80C86-2 and the radiation-hardened HS9-80C86RH. These components were designed to bridge the gap between legacy NMOS systems and modern CMOS requirements, offering backward compatibility while reducing power consumption.

Microprocessors Replacement Considerations

The IS80C86 is functionally pin-compatible with the Intel 8086 and Intersil/Harris 80C86. For radiation-hardened applications, consider the HS9-80C86RH. Standard CMOS replacements include other 80C86 derivatives from various manufacturers, provided they maintain the same 44-pin PLCC footprint and electrical characteristics.