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P80C31SFAA from NXP,NXP Semiconductors

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P80C31SFAA

Manufacturer: NXP, PHILIPS

80C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz)

Partnumber Manufacturer Quantity Availability
P80C31SFAA NXP, PHILIPS 6020 In Stock

Description and Introduction

80C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz) **Introduction to the P80C31SFAA Microcontroller from PHILIPS**  

The **P80C31SFAA** is an 8-bit microcontroller from PHILIPS, designed for embedded control applications requiring high performance and reliability. Based on the industry-standard 80C51 architecture, this component combines a powerful CPU core with integrated peripherals, making it suitable for a wide range of industrial, automotive, and consumer electronics applications.  

Featuring **4 KB of on-chip ROM**, **128 bytes of RAM**, and multiple I/O ports, the P80C31SFAA supports efficient data handling and real-time processing. Its **12-clock cycle operation** ensures compatibility with legacy 80C51-based designs while maintaining robust performance. Additional features include two 16-bit timers/counters, a full-duplex UART for serial communication, and interrupt control capabilities, enhancing its versatility in complex systems.  

The microcontroller operates at a **wide voltage range (4.5V to 5.5V)** and is designed for low-power consumption, making it ideal for battery-powered or energy-sensitive applications. Its **CMOS technology** provides high noise immunity and reliable operation in demanding environments.  

With its proven architecture and flexible integration options, the P80C31SFAA remains a dependable choice for engineers seeking a cost-effective yet powerful microcontroller solution. Its legacy compatibility and robust feature set ensure continued relevance in modern embedded designs.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz)

Alternative Part Number

  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, direct functional replacement for the ROMless P80C31 in most applications.
  • W78E516B40PL --: 8051-compatible MCU with embedded flash and same 40-pin DIP footprint, widely used as a drop-in substitute for classic 80C31 designs.
  • DS89C430-MNG --: High-speed 8051-compatible microcontroller with similar pinout and instruction set, suitable replacement when faster execution is acceptable.
  • AT89C51-24PC --: Pin-compatible 8051-family microcontroller with 4KB flash, widely available and a common drop-in replacement for the P80C31 in many legacy designs.
  • W78E516B40PL --: 8051-compatible MCU with similar core and pinout, offering a direct functional substitute for ROMless 80C31 applications.
  • DS89C430-MNG --: High-speed 8051-compatible microcontroller that is instruction-set compatible and can replace the P80C31 in existing sockets with minor adaptation.

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