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P87C51FB-4B from PHI,Philips

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P87C51FB-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
P87C51FB-4B,P87C51FB4B PHI, PHILIPS 1366 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 **P87C51FB-4B** from PHILIPS (now NXP Semiconductors) is an enhanced 8-bit microcontroller based on the industry-standard 8051 architecture. Designed for embedded applications requiring high performance and reliability, this component integrates advanced features while maintaining backward compatibility with legacy 8051 designs.  

Built with a **4-clock-per-machine-cycle** architecture, the P87C51FB-4B delivers faster execution speeds compared to traditional 12-clock variants. It includes **8 KB of on-chip EPROM**, providing ample program storage, along with **256 bytes of RAM** for data handling. The microcontroller supports a wide operating voltage range (4.5V to 5.5V) and operates at frequencies up to **24 MHz**, making it suitable for industrial, automotive, and consumer electronics applications.  

Key features include **three 16-bit timers/counters**, a full-duplex UART for serial communication, and **32 programmable I/O lines** for interfacing with peripherals. Additionally, it incorporates power-saving idle and power-down modes, enhancing energy efficiency in battery-operated systems.  

With its robust design and extended instruction set, the P87C51FB-4B remains a versatile choice for developers seeking a proven microcontroller solution. Its combination of performance, integration, and legacy support ensures continued relevance in modern embedded designs.

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

  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51FB in legacy designs.
  • DS89C450-MNL --: 8051-compatible microcontroller with 64KB flash and faster core, suitable where the original OTP part is used and higher performance is acceptable.
  • W78E516B-40PL --: 8051-core microcontroller with 64KB flash in a 44-pin PLCC package, offering a functional substitute for the P87C51FB-4B.
  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51FB in legacy designs.
  • N87C51 --: Original 8051-family EPROM microcontroller with matching architecture and pinout, suitable for designs needing the classic 87C51 core.
  • DS89C450-ENL --: 8051-compatible high-speed microcontroller with flash memory and similar pinout, offering a modern upgrade path for the P87C51FB.

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