P80C51FA-4A

Overview

The P80C51FA-4A is an 8-bit microcontroller belonging to the MCS-51 family, manufactured by Rochester Electronics, LLC. It features a maximum clock frequency of 4 MHz and utilizes Mask ROM (MROM) for program storage. The device is housed in a Bulk package configuration. As part of the 80C51 series, it provides standard 8-bit architecture capabilities suitable for embedded control applications requiring deterministic timing and low power consumption.

Feature Summary

• 8-bit MCS-51 compatible architecture
• 4 MHz maximum operating speed
• Mask ROM program memory
• Rochester Electronics manufacturing

Part Context

This component is a derivative of the NXP/Philips 80C51FA series, now distributed by Rochester Electronics. The 'P80' prefix typically denotes the plastic package variant of the original Philips semiconductor design. The '-4A' suffix indicates the specific speed grade of 4 MHz.

Replacement Considerations

Direct pin-compatible replacements within the same speed grade may include other manufacturers' 80C51FA variants with 4 MHz ratings. Verify that the replacement supports Mask ROM rather than OTP or ROMless configurations to ensure code compatibility.