STM32L Series LPUART Voltage Level

[Link_P]

Hi, Does anyone know the default voltage level of an LPUART output as I am trying to interface with a device with a UART logic level of 1.8V so might need a level converter? Couldn't see anything about LPUART voltage on the datasheet? 

[Andrew Neil]

The voltage specs would be the general IO pin specs

 

PS:

Picking an STM32L at random:

 

 

 

 

 

[Andrew Neil]

Essentially the same question here: STM32F723 USART TX and RTS drive capability.

It's defined by the GPIO specifications - not specific to the particular AF in use.

 

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