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P89C51RC2HBA from PHILIPS

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P89C51RC2HBA

Manufacturer: PHILIPS, PH

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM

Partnumber Manufacturer Quantity Availability
P89C51RC2HBA PHILIPS, PH 1272 In Stock

Description and Introduction

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM The **P89C51RC2HBA** from Philips (now NXP Semiconductors) is an enhanced 8-bit microcontroller based on the 80C51 core architecture. Designed for embedded applications requiring high performance and low power consumption, this microcontroller combines reliability with advanced features, making it suitable for industrial, automotive, and consumer electronics.  

With **16 KB of Flash memory**, the P89C51RC2HBA offers in-system programmability (ISP) and in-application programming (IAP) capabilities, allowing for flexible firmware updates. It includes **512 bytes of RAM** and supports a wide operating voltage range (2.7V to 5.5V), ensuring compatibility with various power supplies.  

Key features include a **three-level program lock**, multiple timers/counters, a full-duplex UART, and an enhanced watchdog timer for improved system reliability. Its **6-clock operation mode** enhances processing speed, while the low-power idle and power-down modes optimize energy efficiency.  

The P89C51RC2HBA is housed in a **PLCC-44 package**, providing a compact yet robust solution for space-constrained designs. Its backward compatibility with the 80C51 instruction set ensures seamless integration into existing systems while offering enhanced performance.  

Ideal for applications such as motor control, smart sensors, and communication modules, the P89C51RC2HBA remains a versatile choice for developers seeking a balance of power, efficiency, and functionality.

Application Scenarios & Design Considerations

80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM

Alternative Part Number

  • AT89C51RC2-IM --: Pin-compatible 8051 MCU with similar 32KB flash and 512B RAM, widely available and a common drop-in replacement for the P89C51RC2.
  • STC89C52RC-40I-PDIP --: 8051-compatible MCU with 8KB flash and similar peripheral set; often used as a substitute in legacy Philips 8051 designs.
  • W78E516B-40PL --: 8051-core microcontroller with 64KB flash and compatible instruction set, suitable for replacing P89C51RC2 in many applications.
  • AT89C51RC2-IM --: Pin-compatible 8051 MCU with similar RC2 flash/RAM configuration, widely available and often used as a drop-in replacement for the P89C51RC2.
  • W78E516B --: 8051-compatible microcontroller with comparable flash and RAM, similar PLCC package options, and a common alternative for legacy Philips 8051 designs.
  • STC89C52RC --: Low-cost 8051-compatible MCU with sufficient flash and RAM for most P89C51RC2 applications, though pinout and timing details should be verified.

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