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:
- General Requirements, Transport and Electrical Interface
- Command Language
- 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Part III has now been replaced by the AVSBus specification.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This has been replaced by the AVSBus specification.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 Specification Rev. 1.4.1 Part III 2022-04-18 (.pdf, 34 pages, 413 KB)
PMBus 1.3.1
- PMBus Specification Rev. 1.3.1 Part I 2015-03-13 (.pdf, 27 pages, 174 KB)
- PMBus Specification Rev. 1.3.1 Part II 2015-03-13 (.pdf, 121 pages, 663 KB)
- PMBus Specification Rev. 1.3.1 Part III 2015-03-13 (.pdf, 34 pages, 252 KB)
PMBus 1.3
- PMBus Specification Rev. 1.3 Part I 2014-03-18 (.pdf, 23 pages, 166 KB)
- PMBus Specification Rev. 1.3 Part II 2014-03-18 (.pdf, 120 pages, 914 KB)
- PMBus Specification Rev. 1.3 Part III 2014-03-17 (.pdf, 31 pages, 303 KB)
PMBus 1.2
This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.
- PMBus Specification Part I Rev. 1.2 2010-09-06 (.pdf, 208 KB, 19 pages)
- PMBus Specification Part II Rev. 1.2 2010-09-06 (.pdf, 762 KB, 106 pages)
PMBus 1.1
This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.
- PMBus Specification Part I Rev. 1.1 2007-02-05 (.pdf, 238 KB, 19 pages)
- PMBus Specification Part II Rev. 1.1 2007-02-05 (.pdf, 787 KB, 98 pages)
PMBus 1.0
This old specification is for historical reference only. It is long obsolete and should not be used for any purpose.
- PMBus Specification Part I Rev. 1.0 2005-03-28 (.pdf, 225 KB, 17 pages)
- PMBus Specification Part II Rev. 1.0 2005-03-28 (.pdf, 675 KB, 81 pages)