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P87C51RA+JB from PHILIPS

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P87C51RA+JB

Manufacturer: PHILIPS, PHI

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+JB,P87C51RAJB PHILIPS, PHI 833 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+JB** from Philips (PHI) is a high-performance 8-bit microcontroller based on the 80C51 architecture. Designed for embedded applications, it combines robust functionality with efficient power management, making it suitable for a wide range of industrial and consumer electronics.  

This microcontroller features **8 KB of OTP (One-Time Programmable) ROM**, **256 bytes of RAM**, and **32 I/O lines**, providing ample resources for control and data processing tasks. It operates at a clock speed of up to **16 MHz**, ensuring reliable performance in time-sensitive applications. Additionally, the P87C51RA+JB includes **three 16-bit timers/counters**, a **full-duplex UART** for serial communication, and an **on-chip oscillator**, reducing the need for external components.  

With its **low-power idle and power-down modes**, the P87C51RA+JB is optimized for energy-efficient designs. Its **extended temperature range** and **high noise immunity** make it ideal for harsh environments. The microcontroller also supports **in-system programming (ISP)**, facilitating easy firmware updates during development.  

Engineers favor the P87C51RA+JB for its reliability, versatility, and compatibility with the 80C51 instruction set, making it a preferred choice for legacy system upgrades and new designs alike. Its integration of essential peripherals simplifies circuit design while maintaining high performance.

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-24JU --: Pin-compatible 8051 with 32KB flash and 512B RAM, similar to the P87C51RA, available in PLCC44 package.
  • DS89C450-MNL --: High-speed 8051-compatible microcontroller with 64KB flash, PLCC44 package, and drop-in style replacement for many 87C51 designs.
  • W78E516DPG --: 8051-compatible MCU with 64KB flash in PLCC44, widely used as a replacement for Philips 87C51 family parts.
  • AT89C51RC-24JU --: Pin-compatible 8051 with 32KB flash and 512B RAM, similar to the P87C51RA+ in a PLCC package; widely available and well documented.
  • W78E516B40PL --: 8051-compatible MCU with 64KB flash and 512B RAM in PLCC44, offering comparable functionality and easy drop-in replacement.
  • DS89C450-MNL --: High-speed 8051-compatible microcontroller with 64KB flash in PLCC44, suitable as a functional upgrade with similar pinout.

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