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P87C51MB2BA from PH

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P87C51MB2BA

Manufacturer: PH, PHI, PHILIPS

80C51 8-bit microcontroller family with extended memory

Partnumber Manufacturer Quantity Availability
P87C51MB2BA PH, PHI, PHILIPS 390 In Stock

Description and Introduction

80C51 8-bit microcontroller family with extended memory The **P87C51MB2BA** is an advanced 8-bit microcontroller from PHILIPS (now NXP Semiconductors), designed for embedded control applications. Based on the industry-standard 80C51 architecture, this component combines high performance with low power consumption, making it suitable for a wide range of industrial, automotive, and consumer electronics applications.  

Featuring an enhanced **8051 core**, the P87C51MB2BA operates at clock speeds up to **16 MHz** and includes **8 KB of on-chip ROM**, **256 bytes of RAM**, and **32 I/O lines**. It supports multiple communication interfaces, including a **UART**, enabling seamless serial data transfer. Additionally, its **three 16-bit timer/counters** and **interrupt system** enhance real-time processing capabilities.  

The microcontroller is built with **low-power CMOS technology**, offering power-saving modes such as **Idle** and **Power-Down**, which are essential for battery-operated devices. Its robust design ensures reliable operation in demanding environments, with features like **watchdog timer** and **programmable clock-out** for system stability.  

With its **OTP (One-Time Programmable) memory**, the P87C51MB2BA provides a cost-effective solution for medium-volume production while maintaining security and reliability. Its compatibility with existing 80C51 development tools simplifies integration, reducing time-to-market for embedded designs.  

Ideal for applications requiring precise control and efficient processing, the P87C51MB2BA remains a versatile choice in modern embedded systems.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family with extended memory

Alternative Part Number

  • AT89C51RB2-IM --: Pin-compatible 8051 microcontroller with 16KB flash and similar peripheral set; widely available and well documented as a drop-in replacement.
  • W78E516B40PL --: 8051-compatible MCU with 64KB flash in PLCC44, matching the package and core architecture of the original device.
  • DS89C450-MNL --: High-speed 8051-compatible microcontroller in PLCC44 with comparable I/O and memory resources, suitable for legacy designs.
  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 series.
  • W78E516B40PL --: 8051-compatible MCU with 64KB flash in PLCC44, matching the package and core of the original part.
  • DS89C450-MNL --: High-speed 8051-compatible microcontroller in PLCC44 with flash memory, suitable as a functional substitute.
  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P87C51 series.
  • W78E516B-40PL --: 8051-compatible MCU with 64KB flash in PLCC package, offering similar core and memory capacity for legacy Philips designs.
  • DS89C450-MNL --: High-speed 8051-compatible microcontroller with 64KB flash, suitable as a functional substitute where faster execution is acceptable.

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