MD80C88-2/883

Overview

The MD80C88-2/883 is a military-grade microprocessor manufactured by Harris Corporation. It implements the Intel 80C88 architecture, providing an 8-bit external data bus paired with a 16-bit internal processing core. The device operates at a maximum clock frequency of 8 MHz and utilizes CMOS technology. It is housed in a ceramic 40-pin CCGC (Ceramic Chip Carrier) package designed for high-reliability applications. The component supports a 20-bit address bus, enabling access to up to 1 MB of memory space. It functions as a fixed-point processor suitable for embedded control systems requiring robust performance in harsh environments.

Feature Summary

• Military-grade construction utilizing hermetic ceramic packaging for environmental resilience
• Intel 80C88 compatible architecture combining 16-bit internal processing with 8-bit external interface
• CMOS technology implementation ensuring low power consumption relative to bipolar alternatives

Applications

• Aerospace flight control systems
• Military communication equipment processors
• Ruggedized industrial automation controllers
• Avionics data handling units

Procurement Notes

Verify that the part number suffix /883 confirms compliance with MIL-PRF-38534 or equivalent military quality standards. Confirm the specific grade (e.g., Class K, H, or L) required for your application, as this affects temperature range and screening levels. Ensure the ceramic package integrity is intact upon receipt. Check for lead finish specifications if soldering compatibility is a concern. Validate that the source provides traceability documentation consistent with defense procurement requirements.

Selection Notes

Select this component when an Intel 80C88 instruction set is required but higher reliability than commercial grades is necessary. The 8 MHz speed is adequate for legacy control loops but may be insufficient for high-throughput data processing. Consider the 8-bit external bus width if interfacing with older peripheral buses. Evaluate the thermal dissipation capabilities of the ceramic carrier against your system's heat management strategy. Compare against the standard MD80C88 if military qualification is not mandated.

Part Context

This processor belongs to the Harris 80C88 family, which are CMOS versions of the classic Intel 8088 architecture. Harris Corporation was a primary supplier of radiation-hardened and military-specification microprocessors for the defense industry. The /883 suffix denotes a specific military procurement variant, distinguishing it from commercial or industrial temperature range counterparts. This lineage connects to broader embedded systems used in mid-to-late 20th-century military hardware.

Replacement Considerations

Public confirmed substitute part numbers: MD80C88-2/883, MD80C88/883.