Lot of 5 NXP P87C51X2BN Microcontroller Develop/Test Board DIP-40 MCU Used As Is

Item Highlights:

Board type: Fully assembled board featuring NXP P87C51X2BN microcontroller (8-bit 8051, 4 KB OTP, 128 B RAM, 33 MHz).
Features: Onboard connectors labeled for power, motor, lamp, display, buzzer, reset; great for retro-computing, hobbyists, or embedded projects.
Condition: Untested, Uncleaned, Sold As Is
Why it’s unique: An obsolete MCU-based board—rare and collectible for electronics experimenters.

This listing is for a circuit board featuring the NXP P87C51X2BN microcontroller (8051 family, 40-pin DIP package). The board includes multiple connectors labeled for Power, Display, Motor, Lamp, Reset, Buzzer, and Switch, suggesting it was designed as a control module for an electronic device.

The P87C51X2BN is an 8-bit microcontroller with 4 KB OTP ROM, 128 bytes of RAM, UART serial I/O, timers, and up to 33 MHz operation. Although discontinued, it remains popular for embedded projects, retro electronics, prototyping, and educational use.

Condition:

Pre-owned board, untested
All visible components intact (see photos for details)
Sold as-is, no returns, for parts/repair or reuse

Key Features:

NXP P87C51X2BN 8051-based MCU (40-pin DIP)
Multiple I/O headers (motor, lamp, display, buzzer, etc.)
Onboard crystal oscillator and capacitors
Ideal for embedded control, robotics, or hobbyist projects
Rare / discontinued component

Approximate Dimensions:
~ 3.0 in x 2.0 in

Please refer to the photos for additional information. The photos are of the actual sale items.

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Lot of 5 NXP P87C51X2BN Microcontroller Develop/Test Board DIP-40 MCU Used As Is

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