13th Generation Intel® Core™, Intel® Core™ 14th Generation, Intel® Core™ Processor (Series 1) and (Series 2), Intel® Xeon™ E 2400 Processor and Intel® Xeon™ 6300 Processor

Datasheet, Volume 1 of 2
Supporting 13th Generation Intel® Core™ Processor for S, H, P, HX, and U Processor Line Platforms, formerly known as Raptor Lake.
Supporting Intel® Core™ 14th Generation Processor for S, HX formerly known As Raptor Lake Refresh.
Supporting Intel® Core™ Processor (Series 1) for U Processor Line Platform, formerly known As Raptor Lake refresh
Supporting Intel® Core™ Processor (Series 2) for H Processor Line Platform, formerly known As Raptor Lake Refresh.
Supporting Intel® Xeon® E 2400 Processor and Intel® Xeon® 6300 Processor, formerly known As Raptor Lake–E Refresh

ID Date Version Classification
743844 02/28/2025 Public

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Document Table of Contents

PECI Bus Architecture

The PECI architecture is based on a wired-OR bus that the clients (as processor PECI) can pull up (with the strong drive).

The idle state on the bus is ‘0’ (logical low) and near zero (Logical voltage level).

Note:PECI supported frequency range is 3.2 kHz - 1 MHz.

The following figures demonstrate PECI design and connectivity:

  • PECI Host-Clients Connection: While the host/originator can be third party PECI host and one of the PECI client is a processor PECI device.
  • PECI EC Connection.

Example for PECI Host-Clients Connection

Example for PECI EC Connection