STM32H573RIV6 VDDUSB

HarshaK · ‎2025-03-06

Hello,

I am using the STM32H573RIV6 for my project and would like to use the USB interface. However, according to the datasheet, the VDDUSB pin is not available for the VFQFPN68 package. Does this mean the USB feature is not available for the STM32H573RIV6? This is not specifically mentioned in the datasheet.

Regards,

Harsha

Zhou JianQiang · ‎2025-03-07

Hi :

You should refer to AN5711, Getting started with STM32H5 MCU hardware development , which said " This pin is internally tied to VDD when it is not present in some specific packages. In
consequence, the VDD supply level must be compliant with VDDUSB if the USB is used for these
packages
"

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FBL · ‎2025-03-07

Hi @HarshaK

Indeed, no matching between this package VFQFPN68 and VDDUSB

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HarshaK · ‎2025-03-07

But as per the pin definition, PA11 (Pin 47) and PA12 (pin 48) can be used as USB_DM and USB _DP, also STM32CubeMX Verified this

Zhou JianQiang · ‎2025-03-07

Hi :

You should refer to AN5711, Getting started with STM32H5 MCU hardware development , which said " This pin is internally tied to VDD when it is not present in some specific packages. In
consequence, the VDD supply level must be compliant with VDDUSB if the USB is used for these
packages
"

HarshaK · ‎2025-03-07

Thank you, this information helped lot, I am using VDD supply as 3.3V in the design, so I should be able to use the USB feature.