8051 Family

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Revision as of 15:41, 25 August 2008 by Mip (talk | contribs) (→‎Intel)
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The Intel 8051 is a single chip microcontroller which was developed by Intel in 1980 for use in embedded systems. It has become very popular in the 80s, but today many manufacturer proposes enhanced version that are 8051-compatible.

Architecture

Speed

  • Standard 8051:
    • Supported clock frequencies: 12MHz, 16MHz, 20MHz, and 24MHz.
    • Clock cycles per instructions: 12 (ie. all instructions takes a multiple of 12 oscillation periods).
  • Optimized 8051 (source: NXP):
    • Supported clock frequencies: from 7MHz to 40MHz.
    • Clock cycles per instructions: 2 (LPC900 family), 6 (LPC700 and 80C51 family), 12(80C51).

Links

Intel

NXP

NXP (ex. Philips Semiconductors) offers a wide range of 8051-compatible controllers: