Keil Logo


The Keil MCBx51 Evaluation Board allows you to generate and test application programs for the 8051 and 251 microcontroller families. With this hands-on process, you can determine the hardware and software requirements for current and future product development.

The MCBx51 Evaluation Board supports all operating modes of the 8051 and 251 microcontroller devices:

  • Classic 8051
  • Enhanced 8051
  • the Dallas Semiconductor 80C320, 8x420 or 8xC520
  • the Intel 251SB/251TB
  • the Atmel AT/TSC80251G1D/G2D

The MCBx51 Evaluation Board ships with an 8051 or 251 microcontroller device. The MCBx51 Board contains all required hardware components.

MCBx51 Board

  Arm logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

Arm’s Privacy Policy has been updated. By continuing to use our site, you consent to Arm’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.