5V tolerant pin in open drain mode

[PLe B.1]

Hi,

I have a question on about the 5V tolerant pin of the STM32F103RG. I would like to control a voltage reference create by a voltage divider with the STM32F103RG like below :

But i would like to replace the MOSFET by a 5V tolerant pin of the MCU (configured in open drain) to have two state : the first state with 5V at the voltage divider and the second state with the voltage attented in the voltage divider. Is it possible without damaging the MCU?

[berendi]

> a voltage divider with the STM32F103RG like below :

Are we supposed to see a schematics here? Because I can't.

> Is it possible without damaging the MCU?

Just ensure that the pin does not have to sink more than 20 mA when low.

[PLe B.1]

Thanks for you response,

Yes it was supposed to have this schematic.

Ok, so i can replace the mosfet by an open drain gpio. Thanks