Ultra Low Power Application without USB - what to do with VDDUSB?

[gilberto-falker]

Hi

 

We are working on a project based on the STM32U073CCT6. The USB interfaces is not need. How should I connect the VDDUSB pin in order to minimize tthe power consuption? Is it Ok to connect it do GND?

 

Br

Gilberto

[AScha.3]

Hi,

read in ds...general/minimum working conditions.

->

 

[FBL]

Hi @gilberto-falker 

Check this article FAQ: Configuring the VDD50USB and VDD33USB pins on... - STMicroelectronics Community

It should be helpful.

[Andrew Neil]

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@gilberto-falker wrote:

The USB interfaces is not need

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The STM32U0 series Product Selector lists 12 models with no USB.

Could you use one of them?

[gilberto-falker]

Hi

Models without usb have less flash memory