Query on STM32G473CEU3

[PY.1]

Hi,

We are using STM32G473CEU3 in our design

We have a situation that when MCU is powered off, 3.3V appears on one of the IO pins from an external circuit with 2mA of sourcing. Will this damage the MCU or is it ok?

[TDK]

Per the datasheet, a voltage of 3.3V on a pin when VDD = 0 will not damage the chip. No current will be injected if the voltage is only 3.3V.