TN80C188EA20

Overview

The Altera TN80C188EA20 is a 16-bit microprocessor IC based on the Intel i186 architecture. It features a single 80C186 core operating at a maximum clock frequency of 20MHz. The device utilizes CMOS technology and is housed in a 68-pin PLCC (Plastic Leaded Chip Carrier) package. It supports an ambient operating temperature range of 0°C to +70°C.

Feature Summary

• Implements the 80C186 instruction set architecture within a single-core design
• Operates as a 16-bit microprocessor with integrated peripheral capabilities typical of the i186 family
• Designed for embedded control applications requiring deterministic processing

Applications

• Industrial automation controllers
• Embedded system management units
• General-purpose microprocessor applications in consumer electronics

Procurement Notes

Verify the manufacturer origin, as this component may be sourced from Intel or its successor entities following corporate acquisitions. Confirm the specific suffix indicates the correct speed grade and temperature range. Ensure the PLCC-68 package matches the target PCB footprint requirements. Check for RoHS compliance status if required by current manufacturing standards.

Selection Notes

Select this component when a legacy 80C186-compatible architecture is required for software compatibility. Consider the 20MHz performance limit and 16-bit data path width against application needs. Evaluate the PLCC-68 package availability against modern surface-mount trends. Verify that the industrial temperature range meets environmental constraints.

Part Context

This part belongs to the broader i186 microprocessor family, originally developed by Intel and later supported by Altera/Intel FPGA divisions for embedded solutions. It represents a transition period in programmable logic and processor integration history.

Replacement Considerations

Direct pin-to-pin replacements are limited due to the proprietary nature of the i186 core. Review datasheets for compatible 80C186 derivatives from other manufacturers. Verify electrical characteristics and timing parameters before substitution.