Intel® Core™ Ultra 200H and 200U Series Processors

Datasheet, Volume 1 of 2

ID Date Version Classification
842704 05/27/2025 Public
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 100 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 clients is a processor PECI device.
  • PECI EC Connection.

PECI Host-Clients Connection Example

PECI EC Connection Example