S80C186EB25

Microprocessors Overview

The Altera S80C186EB25 is a 16-bit high-integration embedded microprocessor based on the Intel 80C186 architecture. Operating at a maximum frequency of 25 MHz, it features a low-power static CPU core with true CMOS inputs and outputs. The device supports direct addressing to 1 Mbyte of memory and 64 Kbytes of I/O space. It integrates two independent UARTs with baud rate generators, three programmable 16-bit timer/counters, a programmable interrupt controller, and ten programmable chip selects with wait-state generation. The component is available in an 80-pin Quad Flat Pack (QFP) package.

Microprocessors Feature Summary

• Integrates dual independent UARTs with built-in baud rate generators for serial communication
• Includes a programmable interrupt controller and three 16-bit timer/counters
• Supports direct addressing to 1 Mbyte memory and 64 Kbyte I/O spaces
• Features low-power operating modes including Idle and Powerdown states

Microprocessors Applications

• Embedded control systems requiring high integration
• Industrial automation interfaces
• Communication equipment utilizing serial protocols

Microprocessors Procurement Notes

Verify the manufacturer origin, as this component was originally designed by Intel Corporation before being acquired by Altera. Confirm the specific package type is the 80-pin QFP variant. Ensure the voltage supply matches the 5V specification required for the 25 MHz speed grade. Check for extended temperature range requirements if operating in harsh environments.

Microprocessors Selection Notes

Select this processor when a 16-bit architecture with integrated peripherals is required. It serves as a suitable replacement for legacy 80C186 designs needing higher integration. Consider the 25 MHz speed grade for performance-critical applications. Evaluate power consumption needs against the available idle and powerdown modes.

Microprocessors Part Context

This microprocessor belongs to the 80C186EB family of 16-bit high-integration embedded processors. It is object code compatible with the 80C186XL and 80C188XL families. The 'EB' designation indicates enhanced features such as additional timers and improved power management compared to earlier iterations.

Microprocessors Replacement Considerations

The 80C186EB20 offers a 20 MHz speed grade. The 80C186EB13 provides a 13 MHz option. The 80L186EB variants support 3V operation. The 80C188EB series replaces address/data multiplexing.