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P87C550EBAA from PHILIPS

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P87C550EBAA

Manufacturer: PHILIPS, PHI

80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Partnumber Manufacturer Quantity Availability
P87C550EBAA PHILIPS, PHI 56 In Stock

Description and Introduction

80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer The **P87C550EBAA** from **PHILIPS (now NXP Semiconductors)** is an advanced 8-bit microcontroller designed for embedded applications requiring high performance and reliability. Based on the 80C51 architecture, this component integrates enhanced features such as an expanded memory interface, multiple I/O ports, and versatile timer/counter units, making it suitable for industrial control, automation, and communication systems.  

With **16 KB of on-chip ROM** and **256 bytes of RAM**, the P87C550EBAA provides ample storage for program code and data processing. It supports a **12-clock or 6-clock operation mode**, allowing flexibility in balancing speed and power consumption. The microcontroller also includes a **10-bit ADC**, enabling precise analog signal measurements, along with PWM outputs for motor control applications.  

Key peripherals include **UART, I²C, and SPI interfaces**, facilitating seamless communication with external devices. Its robust design ensures stable operation in harsh environments, featuring low EMI emissions and high noise immunity.  

Engineers favor the P87C550EBAA for its backward compatibility with the 80C51 family, simplifying migration from legacy systems while leveraging modern enhancements. Whether used in automotive electronics, smart sensors, or consumer appliances, this microcontroller delivers efficiency and scalability for diverse embedded solutions.  

For detailed specifications, always refer to the official datasheet to ensure proper implementation in your design.

Application Scenarios & Design Considerations

80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Alternative Part Number

  • AT89C51-24PC --: Pin-compatible 8051-family microcontroller with similar 4KB Flash and 128B RAM, widely available and a common drop-in replacement for legacy Philips 8-bit MCUs.
  • DS89C450-MNL --: 8051-compatible high-speed microcontroller with 64KB Flash, offers more memory and faster operation while retaining the classic 8051 architecture and pinout.
  • W78E516B40PL --: 8051-core microcontroller with 64KB Flash in a PLCC package, functionally similar to the P87C550 and suitable as a legacy Philips 8051 substitute.
  • W78E054D-40PL --: 8051-compatible MCU with 16KB flash and similar peripheral set, suitable as a functional substitute when the original Philips part is unavailable.

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