: For pinouts and electrical specifications needed to integrate the CM4 into your own circuit, refer to the official CM4 Datasheet . 2. Popular Free Third-Party Schematics
When you look at the Raspberry Pi Compute Module 4 IO Board, you will see the marking "94V-0". This is not a schematic reference, but a indicating that the PCB material meets strict flammability standards, ensuring the board will stop burning within 10 seconds of a fire source being removed.
You have a PDF schematic or a KiCad/Eagle file. Here’s how to turn it into a real, fire-safe board.
You can legally and freely download these official resources directly from the Raspberry Pi documentation portal: The CM4 IO Board Datasheet & Schematic cm4 94v0 schematics free
While the full internal schematic of the CM4 module itself is proprietary, Raspberry Pi provides "reduced" schematics and complete designs for the official IO Board to help developers.
If your goal is to design your own carrier board or troubleshoot an official Raspberry Pi product, you need the . These are legally free and provided by the Raspberry Pi Foundation.
. Raspberry Pi does not release full schematics or a Bill of Materials (BOM) for the module itself. The CM4 IO Board (Open Source): Raspberry Pi provides the full schematic and KiCad design files official IO Carrier Board : For pinouts and electrical specifications needed to
The PCIe 2.0 x1 lane allows for NVMe SSDs or networking cards.
A professional schematic intended for standard manufacturing always includes Electrostatic Discharge (ESD) protection diodes near external connectors (HDMI, USB, RJ45). Without these, static electricity from a user plugging in a cable can travel back through the carrier board and instantly destroy the Broadcom SoC on the CM4. Moving from Schematic to a 94V-0 Certified PCB
It indicates that the plastic fiberglass material of the Printed Circuit Board (PCB) will self-extinguish within 10 seconds during a fire test. This is not a schematic reference, but a
Yes. The official CM4 IO Board includes a PoE header. Also, check "OpenCM4-PoE" on GitHub. Ensure the isolated DC-DC converter section is designed for 94V0 clearance (usually reinforced insulation for 48V).
Finding a "free schematic" for a requires understanding that "94V-0" is not a part number, but a safety rating. Specifically, it is a UL 94 flammability standard indicating that the PCB material is flame-retardant and self-extinguishes within 10 seconds. If your board has "CM4 94V-0" printed on it, you are likely looking for the schematics for the Raspberry Pi Compute Module 4 (CM4) or one of its common Carrier Boards . 1. Official Raspberry Pi CM4 Design Files