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P80C51RA+4A from PHILIPS

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P80C51RA+4A

Manufacturer: 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+4A PHILIPS 26 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+4A** from **PHILIPS** is a high-performance, low-power 8-bit microcontroller based on the industry-standard **80C51** architecture. Designed for embedded applications requiring reliability and efficiency, this component integrates advanced features while maintaining compatibility with legacy 80C51 systems.  

Featuring **16KB of on-chip ROM** and **512 bytes of RAM**, the P80C51RA+4A offers ample memory for small to medium-scale applications. Its enhanced architecture includes a **six-clock operation mode**, significantly improving execution speed compared to traditional 12-clock variants. The microcontroller supports a wide operating voltage range (2.7V to 5.5V), making it suitable for both battery-powered and industrial environments.  

Key peripherals include **three 16-bit timers/counters**, a **full-duplex UART**, and **32 programmable I/O lines**, enabling versatile interfacing with external devices. Additionally, it incorporates **power-saving idle and power-down modes**, optimizing energy consumption in low-duty-cycle applications.  

With robust **EMI suppression** and **high noise immunity**, the P80C51RA+4A is well-suited for automotive, industrial control, and consumer electronics. Its **OTP (One-Time Programmable) ROM** variant ensures secure firmware storage, while its extended temperature range enhances reliability in harsh conditions.  

For developers seeking a dependable, cost-effective microcontroller with proven 80C51 compatibility, the P80C51RA+4A remains a compelling choice.

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, similar to the P80C51RA+4A, widely available and well documented.
  • N79E815A --: 8051-core MCU with comparable features and 40-pin DIP package, suitable drop-in replacement for legacy Philips 80C51 designs.
  • STC89C52RC-40I-PDIP --: Popular 8051-compatible MCU in 40-pin DIP, low cost and easy to source as an alternative to the Philips P80C51RA+4A.

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