Cm4 94v0 Schematics Jun 2026

Raspberry Pi provides official with pinouts for CM4 variants (eMMC/Lite, wireless/ non-wireless). Ensure the schematic matches CM4 (not CM3 or CM5).

Raspberry Pi CM4 94V-0 Schematics: A Comprehensive Guide for Embedded Design

The marking printed on a Raspberry Pi Compute Module 4 (CM4) often leads users to search for "CM4 94V-0 schematics." However, this text is not a circuit board model number or a schematic identifier. It is a critical manufacturing standard that tells us how the board behaves under extreme heat. cm4 94v0 schematics

Almost every commercially viable FR4 PCB manufactured today bears a "94V-0" mark along with the logo of the specific PCB fabricator.

The “94V-0” rating comes from the UL 94 standard, which tests the vertical burning characteristics of plastic materials. For a PCB to achieve a V-0 rating , it must pass a rigorous vertical burn test where it self-extinguishes within 10 seconds after the test flame is removed and produces no flaming drips . It is the highest flame rating in the UL94 specification. Raspberry Pi provides official with pinouts for CM4

Tell me any other text printed on the PCB.

When designing your CM4 carrier board, always specify 94V-0 rated material to your PCB manufacturer. It is a critical manufacturing standard that tells

The CM4 breaks out a single-lane PCIe interface. In the schematic, look for the PCIE_TX_P/N and PCIE_RX_P/N differential pairs.