Hi,
i am a newbie regarding microcontroller and i have a question.
I am using a STM32 Nucleo-144 developement board and in the datasheet it says that it can be powered with 5V or 3.3V.
Do i get any disadvantage (beside the ST-Link can not be used) if i power the developement board with 3.3V or
why can i power the board also with 5V? Or does the 5V mean that the developement board can be powered with
an USB port (5V) which then gets regulated to 3.3V?

I am referring to this datasheet (page 20-22) : https://www.st.com/resource/en/user...ucleo144-boards-mb1137-stmicroelectronics.pdf

 

In general most development boards are powered from the USB 5V connection.
On board 3.3V regulators are used to power the 3.3V devices such as the STM32 MCU.