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PMBus® Specification Archives

To get the current specification (revision 1.4), see instructions on the  current specification page.

Recent PMBus specifications (revision 1.3 and later) consist of 3 parts:

  1. General Requirements, Transport and Electrical Interface
  2. Command Language
  3. Adaptive Voltage Scaling Bus (AVSBus™)

PMBus 1.3.1

PMBus 1.3

PMBus 1.2

This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.

PMBus 1.1

This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.

PMBus 1.0

This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.