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P89C668HBA from PHILIPS

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P89C668HBA

Manufacturer: PHILIPS, NXP

80C51 8-bit Flash microcontroller family

Partnumber Manufacturer Quantity Availability
P89C668HBA PHILIPS, NXP 1065 In Stock

Description and Introduction

80C51 8-bit Flash microcontroller family The **P89C668HBA** from NXP is a high-performance 8-bit microcontroller based on the 80C51 core architecture. Designed for embedded applications requiring robust processing capabilities, this component integrates advanced features while maintaining compatibility with legacy 80C51 instruction sets.  

Featuring **64 KB of Flash memory** and **8 KB of RAM**, the P89C668HBA supports in-system programming (ISP) and in-application programming (IAP), allowing flexible firmware updates without removing the chip from the circuit. Its enhanced architecture includes a **six-clock operation mode**, significantly improving execution speed compared to traditional 12-clock 80C51 devices.  

Additional peripherals include **three 16-bit timers/counters**, a **programmable watchdog timer**, and a **UART with baud rate generation**, making it suitable for communication-intensive tasks. The microcontroller also supports **I²C and SPI interfaces**, enhancing connectivity with external sensors and peripherals.  

Operating within a **2.7V to 5.5V** voltage range, the P89C668HBA is optimized for low-power applications. Its industrial-grade temperature range (-40°C to +85°C) ensures reliable performance in demanding environments.  

With its blend of speed, memory capacity, and versatile I/O options, the P89C668HBA is well-suited for industrial control, automation, and consumer electronics applications where efficiency and reliability are critical.

Application Scenarios & Design Considerations

80C51 8-bit Flash microcontroller family

Alternative Part Number

  • AT89C51RD2-IM --: Pin-compatible 8051 microcontroller with 64KB flash, similar to the P89C668, widely available and well documented.
  • W78E516DDG --: 8051-compatible MCU with 64KB flash in PLCC44, close functional match to the P89C668HBA.
  • STC89C58RD+ --: 8051-core microcontroller with 32KB flash and similar peripherals, suitable drop-in replacement for many P89C668 applications.
  • AT89C51RD2-IM --: 8051-compatible MCU with 64KB flash, drop-in functional replacement for the P89C668 in most 8051 designs.
  • W78E516DDG --: 8051-core microcontroller with 64KB flash and similar peripheral set, widely used as a P89C668 substitute.
  • STC89C58RD+ --: 8051-compatible MCU with 32KB flash and UART/timers, suitable for legacy 8051 socket replacements.

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