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P87C51SBPN from PHY

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P87C51SBPN

Manufacturer: PHY, NXP, PHI, PHILIPS

80C51 8-bit microcontroller family 4 K/8 K OTP/ROM low voltage (2.7 V-5.5 V), low power, high speed (33 MHz), 128/256 B RAM

Partnumber Manufacturer Quantity Availability
P87C51SBPN PHY, NXP, PHI, PHILIPS 666 In Stock

Description and Introduction

80C51 8-bit microcontroller family 4 K/8 K OTP/ROM low voltage (2.7 V-5.5 V), low power, high speed (33 MHz), 128/256 B RAM The **P87C51SBPN** from PHILIPS (now NXP Semiconductors) is a high-performance, 8-bit microcontroller based on the 80C51 architecture. Designed for embedded applications, this component combines reliability with efficient processing capabilities, making it suitable for industrial, automotive, and consumer electronics.  

Featuring **4KB of OTP (One-Time Programmable) ROM**, **128 bytes of RAM**, and a robust instruction set, the P87C51SBPN ensures seamless execution of control-oriented tasks. Its **12 MHz clock frequency** supports fast operation, while low-power modes enhance energy efficiency. The microcontroller includes **32 programmable I/O lines**, two 16-bit timers/counters, and a full-duplex UART for serial communication.  

Built with **CMOS technology**, the P87C51SBPN offers improved noise immunity and reduced power consumption compared to earlier NMOS-based designs. It also supports **external memory expansion**, providing flexibility for more complex applications.  

With its **industrial-grade temperature range** (-40°C to +85°C) and durable construction, this microcontroller is well-suited for harsh environments. Engineers favor the P87C51SBPN for its balance of performance, cost-effectiveness, and ease of integration into existing 80C51-based systems.  

Whether used in automation, instrumentation, or communication devices, the P87C51SBPN remains a dependable choice for embedded system designers seeking a proven, legacy-compatible solution.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 4 K/8 K OTP/ROM low voltage (2.7 V-5.5 V), low power, high speed (33 MHz), 128/256 B RAM

Alternative Part Number

  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 in many legacy designs.
  • DS89C450-MNL --: 8051-compatible microcontroller in a 40-pin DIP package with faster core and similar peripheral set, suitable for direct socket replacement.
  • W78E516B40PL --: 8051-core microcontroller in 40-pin DIP with 64KB flash, offering a functional equivalent for designs based on the P87C51SBPN.
  • AT89S51-24PU --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 in many designs.
  • STC89C52RC-40I-PDIP --: 8051-compatible MCU in DIP-40 with 8KB flash, same core architecture and pinout, often used as a low-cost substitute.
  • W78E516B40PL --: 8051-core microcontroller in DIP-40 with 64KB flash, similar peripheral set and pinout, suitable when more program memory is acceptable.
  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 in many designs.
  • DS89C450-MNL --: 8051-compatible microcontroller in a 40-pin DIP package with faster core and similar peripheral set, suitable for direct board replacement.
  • W78E516B40PL --: 8051-core microcontroller in 40-pin DIP with 64KB flash, offering a functional alternative when extra program memory is acceptable.
  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 in many legacy designs.
  • DS89C450-MNL --: 8051-compatible microcontroller in a 40-pin DIP package with faster core and similar peripheral set, suitable for upgrading existing P87C51 sockets.
  • W78E516B40PL --: 8051-core microcontroller in 40-pin DIP with 64KB flash, offering a functional substitute when the original Philips OTP part is unavailable.

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