STM32U575xx USB

[joaorego]

Hello,

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

Thank you.

[FBL]

Hi @joaorego 

All packages for this family support USB!

575 = STM32U575xx with OTG

[joaorego]

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?

 

[gbm]

USB requires  3.3 V power.

[FBL]

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.