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P80C31 from INTEL

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P80C31

Manufacturer: INTEL, INT

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
P80C31 INTEL, INT 11116 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 P80C31 Microcontroller  

The **P80C31** is an enhanced 8-bit microcontroller from **INT**, designed for embedded control applications. Based on the industry-standard **8051 architecture**, it combines high performance with low power consumption, making it suitable for a wide range of industrial, automotive, and consumer electronics applications.  

Featuring **128 bytes of on-chip RAM** and **4 KB of ROM**, the P80C31 provides sufficient memory for small to medium-sized embedded projects. It operates at clock speeds up to **16 MHz**, ensuring efficient execution of control algorithms and real-time tasks. The microcontroller includes **32 I/O lines**, two **16-bit timer/counters**, and a full-duplex **UART** for serial communication, enhancing its versatility in system design.  

One of its key advantages is **low-power operation**, supporting both active and idle modes to optimize energy efficiency. Additionally, the P80C31 maintains compatibility with the **MCS-51 instruction set**, allowing seamless integration with existing 8051-based designs.  

With robust peripheral support and reliable performance, the P80C31 remains a practical choice for developers seeking a cost-effective yet powerful microcontroller for embedded systems. Its proven architecture and extended features make it a dependable solution for modern control applications.

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 --: 8051-compatible microcontroller with similar core and pinout, widely available and often used as a drop-in replacement for Intel 80C31 designs.
  • W78E052 --: 8051-compatible MCU with comparable architecture and I/O, suitable substitute when the ROM-less 80C31 function is not strictly required.
  • DS89C430 --: High-speed 8051-compatible microcontroller offering similar peripheral set and pin compatibility for legacy Intel 80C31 applications.
  • N80C31 --: Same 8051-family microcontroller core with identical pinout and instruction set, rated for a different clock frequency grade, making it a direct functional substitute.

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