Cm4 94v0 Schematics [new] Info

Understanding CM4 94V0 Schematics: Design, Compliance, and Practical Implementation

• CM4: This indicates the board is a Carrier Board designed to host the Raspberry Pi Compute Module 4. The CM4 is the small RAM/CPU stick that plugs into this board.
• 94V0: This is not a model number. It is a UL (Underwriters Laboratories) flammability rating indicating the PCB material meets specific safety standards. Almost every legitimate electronics board has this mark, so it does not help narrow down the specific manufacturer.

Clocking

• Adequate creepage and clearance distances (high voltage isolation).
• Thermal relief patterns (to prevent board charring).
• Specified FR-4 material in the fabrication notes.