MG80C186-12/B

Overview

The MG80C186-12/B is a 16-bit microprocessor manufactured by Rochester Electronics, LLC. It operates at a clock speed of 12MHz and utilizes CMOS technology. The device is housed in an 80-pin Plastic Quad Flat Package (PQFP) with a shrink profile. It functions as a core component within the i186 architecture family, providing single-core processing capabilities for embedded applications requiring sustained production of legacy semiconductor technologies.

Feature Summary

• Supports 16-bit data processing architecture based on the i186 core design
• Integrated DRAM controller functionality for memory management
• Designed for continued production of obsolete or end-of-life components

Applications

• Embedded systems requiring legacy 16-bit microprocessor support
• Industrial control equipment utilizing established i186 architectures
• Maintenance and repair of existing hardware platforms dependent on discontinued Intel 80C186 derivatives

Procurement Notes

Verify that the specific lot marking matches the requested part number exactly, as dual-marked devices may carry additional military or government identifiers such as 5962-8850102ZA. Confirm RoHS compliance status directly with the supplier, as legacy CMOS parts often fall outside standard environmental directives. Ensure the package type corresponds to the shrink PQFP variant specified in the ordering information to guarantee physical compatibility with existing PCB footprints.

Selection Notes

Select this component when maintaining systems that require the specific electrical characteristics and pinout of the original Intel 80C186 derivative. The 12MHz speed grade must match the system clock requirements. Consider the PQFP-80 package dimensions during mechanical integration. This part serves as a direct replacement for discontinued units where form, fit, and function must remain identical to the original design specifications without modification.

Part Context

Rochester Electronics specializes in sustaining production of mature and obsolete semiconductor technologies rather than developing new ones. The MG80C186 series falls under their microprocessor portfolio, specifically supporting the Intel 80C186/188 16-bit family. These components are typically sourced from wafer banks or licensed manufacturing agreements to ensure availability for long-term industrial and defense applications where original manufacturers have ceased production.

Replacement Considerations

The SB80C186XL12 and MG80C186-12/BZA are documented variants within the same functional family. Verify if dual-marking affects regulatory compliance or traceability requirements for your specific application before substitution.