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C51: Which 8051-based Chips Are Supported?

Information in this article applies to:

  • C51 All Versions


Which 8051-based microcontrollers are compatible with the Keil C51 compiler?


The C51 toolset supports all derivatives from AMD, Atmel, Cypress, Dallas Semiconductor, Intel, ISSI, OKI, Philips, Infineon, SMC, TDK, Temic, and so on. Additional derivatives should work provided that they are 100% instruction-compatible with the 8051.

Refer to the Device Database for a complete listing of all chips supported by the Keil tools. If you are concerned about compatibility issues with a particular microcontroller, submit it to us using the Device Problem Report.

Last Reviewed: Thursday, February 25, 2021

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