Using BC1.2 in STM32G473CE

PY.1 · ‎2024-06-23

Hi,

I want to use BC1.2 protocol of STM32G473CE MCU. But STM32G473CE supports USB PD also. So in order to use only BC1.2 can I use only Dp Dm lines of STM32G473CE and leave CC lines un-connected

Also what is the maximum power negotiation performed by STM32G473CE when using BC1.2 protocol?

FBL · ‎2024-06-24

Hello @PY.1

If you would like to use USB 2.0 legacy device to function with a USB Type-C port, you can pull down CC lines to ground as referenced in the figure below extracted from AN5225

According to table 3 : Power supply options, in same App note

The maximum power would be 7.5W

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