This stands for Raspberry Pi Compute Module 4 . It is a compact system-on-module (SoM) designed for deeply embedded industrial and commercial applications.
If you open the schematic PDF, it can look overwhelming. However, if you are designing a custom carrier board, you only need to focus on four critical sections. Here is a deep dive into how the 94v0 schematic handles them. cm4 94v0 schematics free
: This indicates that the board's substrate is flame-retardant and will self-extinguish within 10 seconds of exposure to a flame. It is a standard requirement for industrial-grade hardware. This stands for Raspberry Pi Compute Module 4
If you are looking for or PCIe implementation details for your CM4, I can help you find those in the schematics. However, if you are designing a custom carrier
If you have experience finding or creating CM4-based custom boards, especially with 94V0 compliance, we'd love to hear your insights and advice in the comments below.
While full internal schematics for the actual CM4 module are rarely released by the Raspberry Pi Foundation, they have made the design files for the freely available to encourage custom development. The Ultimate Guide To UL 94V-0 Circuit Boards - Jhdpcb
Detailed schematics for the baseboard are available through official Orange Pi resources .