Question about STM32L051x6 pin uses

[AFuli.1]

On the STM32L051x6 datasheet it is written "PB9/12/13/14/15, PH0/1 and PC13 GPIOs should be configured as output and driven Low, even if they are not available on

this package" but in the "notes" space of the pin register descrpition there is no reference to this note. Anyway, since the packages are small i need to use to use those pins as I/O.

What are the risks, if i use them as standard I/O? What exactly means "Should be" in a techincal datasheet without a clear description of the conseguencies?

Thank you,

Alex

[Peter BENSCH · Accepted solution]

I apologise that this has been expressed in a somewhat misleading way: The footnote refers exclusively to the WLCSP36 package. The GPIOs are present on the chip, but not bonded and led out on this particular enclosure. To avoid interferences one should set up the mentioned pins according to the footnote if the WLCSP36 is used.

Does it answer your question?

Regards

/Peter

[AFuli.1]

Peter, thank you.

It was my fault. Sorry about that. I found the notes on the datasheet.

 

Thank you.

Alex

[Peter BENSCH]

OK. If the problem is resolved, please mark this topic as answered by selecting Select as best under your preferred answer. This will help other users find that answer faster.

/Peter