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P89C51UBA A from PHILIPS

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P89C51UBA A

Manufacturer: PHILIPS

80C51 8-bit microcontroller family 4K/8K/16K/32K Flash

Partnumber Manufacturer Quantity Availability
P89C51UBA A,P89C51UBAA PHILIPS 540 In Stock

Description and Introduction

80C51 8-bit microcontroller family 4K/8K/16K/32K Flash The **P89C51UBA A** from **PHILIPS** is an advanced 8-bit microcontroller based on the **80C51** core architecture. Designed for embedded control applications, it combines high performance with low power consumption, making it suitable for industrial, automotive, and consumer electronics.  

Featuring **16 KB of flash memory**, the P89C51UBA A allows for in-system programming (ISP) and in-application programming (IAP), providing flexibility in firmware updates. It also includes **512 bytes of RAM** and supports a wide operating voltage range (2.7V to 5.5V), enhancing its adaptability across different power conditions.  

The microcontroller integrates multiple peripherals, such as **UART, SPI, and I²C interfaces**, along with **three 16-bit timers/counters** and a **watchdog timer** for robust system monitoring. Its **low EMI emission** ensures compliance with electromagnetic compatibility (EMC) standards, while its **power-saving modes** extend battery life in portable applications.  

With a **maximum clock frequency of 33 MHz**, the P89C51UBA A delivers efficient processing for real-time control tasks. Its **extended temperature range** (-40°C to +85°C) further reinforces its reliability in harsh environments.  

Engineers favor this microcontroller for its balance of performance, integration, and cost-effectiveness, making it a preferred choice for embedded system designs requiring dependable operation and ease of development.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 4K/8K/16K/32K Flash

Alternative Part Number

  • AT89C51-24PC --: Pin-compatible 8051 microcontroller with 4KB flash, widely available and a common drop-in replacement for the P89C51 series in legacy designs.
  • W78E516B-40PL --: 8051-compatible MCU with 64KB flash and similar peripheral set, suitable as a functional substitute where the Philips part is obsolete.
  • STC89C52RC-40I-PDIP --: Low-cost 8051-compatible microcontroller with 8KB flash, pin-compatible DIP package, commonly used to replace older Philips 89C51 devices.

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