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STM32U575xx USB

joaorego
Associate

Hello,

Does the STM32U575CG/I (48-pin package) support USB communication, or is USB functionality only available on higher pin-count variants?

Thank you.

4 REPLIES 4
FBL
ST Employee

Hi @joaorego 

All packages for this family support USB!

FBL_1-1739955901488.png

575 = STM32U575xx with OTG

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But what about the USB supply voltage? Will it be sourced directly from VDD? Can I still supply VDD with a voltage lower than 3V?

joaorego_0-1739956528083.png

 

gbm
Principal

USB requires  3.3 V power.

My STM32 stuff on github - compact USB device stack and more: https://github.com/gbm-ii/gbmUSBdevice
FBL
ST Employee

Hi @joaorego 

As explained in the footnote of Table 150. OTG_FS characteristics (continued) in page 304,

USB functionality is ensured down to 2.7V, but some USB electrical characteristics are degraded in 2.7 to 3.0 V range.

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