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P87C51RA+IB from PHI,Philips

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P87C51RA+IB

Manufacturer: PHI, PHILIPS

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz

Partnumber Manufacturer Quantity Availability
P87C51RA+IB,P87C51RAIB PHI, PHILIPS 543 In Stock

Description and Introduction

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz The **P87C51RA+IB** from **PHILIPS** is an advanced 8-bit microcontroller based on the industry-standard **8051 architecture**. Designed for high-performance embedded applications, it combines robust processing capabilities with versatile peripheral integration, making it suitable for industrial control, automation, and communication systems.  

Featuring **32 KB of OTP (One-Time Programmable) ROM**, **512 bytes of RAM**, and a **256-byte expanded internal RAM**, the P87C51RA+IB ensures efficient data handling and program execution. Its **6-clock operation mode** enhances processing speed, while multiple **I/O ports, timers/counters, and a full-duplex UART** provide flexible interfacing options. Additionally, it supports **in-circuit programming (ISP)**, simplifying firmware updates during development.  

The microcontroller operates within a **wide voltage range (4.5V–5.5V)** and includes power-saving modes like **Idle and Power-Down**, optimizing energy efficiency. With built-in **watchdog timer** and **hardware encryption** features, it enhances system reliability and security.  

Engineers favor the P87C51RA+IB for its **backward compatibility** with legacy 8051 designs, allowing seamless migration while leveraging modern enhancements. Its robust architecture, coupled with PHILIPS' proven manufacturing quality, makes it a dependable choice for demanding embedded applications.  

For detailed specifications, always refer to the official datasheet to ensure proper integration into your design.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz

Alternative Part Number

  • AT89C51RC-24PU --: 8051-compatible MCU with 32KB flash and 512B RAM, similar to the P87C51RA+IB, widely available and pin-compatible in many 40-pin DIP designs.
  • W78E516B-40PL --: 8051-core microcontroller with 64KB flash, drop-in style replacement for many Philips 87C51 variants, good availability and similar peripheral set.
  • STC89C52RC-40I-PDIP --: Popular 8051-compatible MCU with 8KB flash, low cost and easy replacement for legacy 87C51 designs where code size fits.
  • AT89C51RC-24PU --: Pin-compatible 8051 MCU with 32KB flash and similar peripheral set, widely available and easy drop-in replacement.
  • W78E516B40PL --: 8051-compatible microcontroller with 64KB flash, similar architecture and package, good functional substitute.
  • DS89C450-MNL --: High-speed 8051-compatible MCU with 64KB flash, offers similar functionality and can replace the original in many designs.

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