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P87C51RA+4B from PHI,Philips

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P87C51RA+4B

Manufacturer: PHI

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
P87C51RA+4B,P87C51RA4B PHI 271 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 **P87C51RA+4B** from PHILIPS (now NXP Semiconductors) is a high-performance 8-bit microcontroller based on the 80C51 architecture. Designed for embedded applications, it combines robust functionality with low power consumption, making it suitable for industrial, automotive, and consumer electronics.  

This microcontroller features **16KB of OTP (One-Time Programmable) ROM**, **512 bytes of RAM**, and an expanded instruction set that enhances processing efficiency. With a clock speed of up to **33 MHz**, it delivers reliable performance for real-time control tasks. The **P87C51RA+4B** also includes multiple peripherals such as **four 8-bit I/O ports**, three 16-bit timers/counters, a full-duplex UART for serial communication, and an interrupt system with seven sources.  

Built with **low EMI (Electromagnetic Interference)** characteristics, it is well-suited for noise-sensitive environments. Its power-saving modes, including **Idle** and **Power Down**, extend battery life in portable applications. Additionally, the device supports in-system programming (ISP), facilitating firmware updates without removing the chip from the circuit.  

Engineers favor the **P87C51RA+4B** for its balance of performance, integration, and cost-effectiveness. Its compatibility with the 80C51 ecosystem ensures seamless migration for legacy designs while offering modern enhancements for new developments.

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

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