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Is it mandatory to power STM32G473 from 3.3v only when I need in USB functionality?

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JBadu.1
Associate

‎2021-06-01 08:22 PM

I am going to use STM32G473 for my application. Most of peripheral interfaces need in 1.8v power (QSPI, I2C, GPIO, etc.) but i need in USB device functionality too.There is a requirement form data shhet (DS12712 Rev3 p174) to power USB tranciever from 3.3v. Does it mean that when I need in USB whole chip should be powered from 3.3v?

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TDK
Guru

‎2021-06-01 08:27 PM

> Does it mean that when I need in USB whole chip should be powered from 3.3v?

Yes, if you need USB, you'll need to provide a VDD of 3.0-3.6V per the datasheet.

If you feel a post has answered your question, please click "Accept as Solution".

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TDK
Guru

‎2021-06-01 08:27 PM

> Does it mean that when I need in USB whole chip should be powered from 3.3v?

Yes, if you need USB, you'll need to provide a VDD of 3.0-3.6V per the datasheet.

If you feel a post has answered your question, please click "Accept as Solution".
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