80186/BUC

Overview

The 80186/BUC is a 1-core, 16-bit microprocessor from the iAPX86 family manufactured by Advanced Micro Devices. It operates at a fixed clock speed of 8MHz and is housed in a 52-CLCC package measuring 11.43x11.43 mm. This component integrates essential system functions to support embedded applications.

Feature Summary

• Integrates a built-in Direct Memory Access (DMA) controller for peripheral data movement without CPU intervention.

Applications

• Embedded system designs from the early to mid-1980s

Procurement Notes

Verify the manufacturer designation as Advanced Micro Devices against the specific part marking. Confirm the 52-CLCC package dimensions and 8MHz operational frequency match the design requirements. Check for Non-Cancelable/Non-Returnable status if purchasing through marketplace channels. Ensure compatibility with legacy 5V logic levels typical of the iAPX86 architecture.

Selection Notes

Select this component when a legacy 16-bit processing core with integrated DMA is required for historical or maintenance systems. The fixed 8MHz speed limits suitability for modern high-performance tasks. Consider the CLCC package for surface-mount assembly constraints. Verify that the single-core architecture meets the computational demands of the target application.

Part Context

This microprocessor belongs to the iAPX86 family, which was introduced in 1982. While originally developed by Intel, Advanced Micro Devices produced compatible versions. The device serves as a foundational element in early personal computer and industrial control architectures, bridging the gap between 8-bit and 32-bit computing eras.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other iAPX86 family members only if electrical characteristics and pinouts are explicitly verified as identical.