Do wakeup pins PA0, PC13 and PB3 on STM32WL55 require external pull-up?

[MAmiri]

I cannot find the external requirement for wakeup pins PA0, PC13 and PB3 on STM32WL55.

Do they need a pullup (e.g. 10K) to keep the output state once the MCU goes into one of the sleep modes?

Thanks

[Vangelis Fortounas · Accepted solution]

Hello

All GPIOs contain 40K PU/PD resistors. Some of them are maintained in Low pawer modes.

There are no special requirements for external pullups .

VILo , VIHi ,leakage current and other factors determine the max pullup/down resistors.

This is from DS

[MAmiri]

Thanks Vangelis Fortounas!