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P80C51RA+4B from PHI,Philips

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P80C51RA+4B

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
P80C51RA+4B,P80C51RA4B PHI, PHILIPS 7984 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 **P80C51RA+4B** from **PHILIPS** is a high-performance, low-power 8-bit microcontroller based on the industry-standard **80C51** architecture. Designed for embedded applications requiring robust processing capabilities and efficient power consumption, this component integrates advanced features while maintaining compatibility with legacy 80C51 systems.  

Built with **4 KB of ROM** and **128 bytes of RAM**, the P80C51RA+4B supports a wide range of embedded control tasks. It operates at a clock speed of up to **16 MHz**, ensuring reliable performance for real-time applications. The microcontroller includes an enhanced instruction set, offering improved execution speed and efficiency over traditional 80C51 variants.  

Key features include **three 16-bit timers/counters**, a **programmable serial UART**, and **32 I/O lines**, providing flexibility for interfacing with peripherals. Its low-power modes make it suitable for battery-operated devices, while its durable design ensures stability in industrial environments.  

The P80C51RA+4B is ideal for applications such as **automotive systems, industrial automation, and consumer electronics**, where reliability and cost-effectiveness are critical. With its proven architecture and expanded capabilities, this microcontroller remains a dependable choice for developers seeking a balance of performance and power efficiency.  

Engineers appreciate its ease of integration and backward compatibility, making it a practical solution for both new designs and upgrades to existing systems.

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 --: Pin-compatible 8051 microcontroller with 32KB flash and similar 40-pin DIP footprint, widely available and functionally equivalent for most P80C51RA applications.
  • W78E516B40PL --: 8051-compatible MCU with 64KB flash in 44-pin PLCC, matching the P80C51RA+4B package and offering drop-in code compatibility.
  • STC89C52RC-40I-PDIP --: Low-cost 8051-compatible microcontroller with 8KB flash, suitable replacement for legacy P80C51 designs where full 16KB ROM is not required.
  • AT89C51RC-24PU --: Pin-compatible 8051 microcontroller with 32KB flash and similar 40-pin DIP package, widely available and a common drop-in replacement for legacy Philips 80C51 devices.
  • W78E516B40PL --: 8051-compatible MCU with 64KB flash in 40-pin PLCC/DIP, offering equivalent core and peripherals for designs originally using the P80C51RA.
  • STC89C52RC-40I-PDIP --: Low-cost 8051-compatible microcontroller with 8KB flash in 40-pin DIP, suitable as a functional substitute where the full 16KB ROM of the original is not required.

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