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P89C51RD2FA from PHILIPS

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P89C51RD2FA

Manufacturer: PHILIPS, NXP

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM

Partnumber Manufacturer Quantity Availability
P89C51RD2FA PHILIPS, NXP 10890 In Stock

Description and Introduction

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM The **P89C51RD2FA** from **PHILIPS** (now **NXP Semiconductors**) is a high-performance 80C51 microcontroller featuring enhanced processing capabilities and versatile embedded applications. Built on an advanced CMOS architecture, it combines low power consumption with robust functionality, making it suitable for industrial, automotive, and consumer electronics.  

This microcontroller operates at a clock speed of up to **33 MHz** and includes **64 KB of Flash memory** for program storage, along with **1 KB of RAM** for data handling. Its in-system programming (ISP) and in-application programming (IAP) support allow flexible firmware updates without removing the chip from the circuit.  

The **P89C51RD2FA** integrates multiple peripherals, such as **UART, SPI, timers, and PWM modules**, enhancing its adaptability in communication and control systems. Additionally, it features **watchdog timers** and **power-saving modes**, ensuring reliability and energy efficiency.  

Compatible with the **80C51 instruction set**, this microcontroller simplifies migration for developers familiar with legacy 8051 architectures while offering improved performance. Its **40-pin DIP package** ensures easy integration into various circuit designs.  

With its blend of speed, memory capacity, and peripheral support, the **P89C51RD2FA** remains a dependable choice for embedded system designers seeking a balance between cost and functionality.

Application Scenarios & Design Considerations

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM

Alternative Part Number

  • AT89C51RD2-IM --: Pin-compatible 8051 with 64KB flash and similar RD2 feature set; widely available and often used as a drop-in replacement for the P89C51RD2.
  • STC89C52RC-40I-PDIP --: Classic 8051-compatible MCU with 8KB flash; suitable for lower-memory applications and commonly used where Philips 8051 parts are hard to source.
  • W77E058A40PL --: Enhanced 8051 core with 32KB flash and fast architecture; a functional alternative when the full 64KB of the original is not required.
  • AT89C51RD2-IM --: Pin-compatible 8051 with 64KB flash, widely used as a drop-in replacement for the P89C51RD2 in legacy designs.
  • W78E516D40PL --: 8051-compatible MCU with 64KB flash and similar peripheral set, suitable for direct substitution in existing sockets.
  • STC89C52RC-40I-PDIP --: Low-cost 8051-compatible MCU with 8KB flash; adequate for reduced-functionality replacements where full 64KB is not required.

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