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PMBus® & AVSBus™ Specification Archives

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

PMBus specification revisions 1.3 through 1.4.1 consisted of 3 parts:

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

Part III has now been replaced by the AVSBus specification.

PMBus 1.4.1 Part III

This has been replaced by the AVSBus specification. To request the AVSBus specification, see instructions on the  current specification page.

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This old specification is for historical reference only.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This old specification is for historical reference only.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This old specification is for historical reference only.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.