Hi Everyone,
thank you for your inputs!
What if I use hibernation mode and remove the 3V3 supply (besides Vbat) -> is it ok to have a voltage at the IO Pins? (concerning reverse currents/energy)
Regards
Andreas
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi Everyone,
thank you for your inputs!
What if I use hibernation mode and remove the 3V3 supply (besides Vbat) -> is it ok to have a voltage at the IO Pins? (concerning reverse currents/energy)
Regards
Andreas
Outsider Alert!
Andreas Krasser said:is it ok to have a voltage at the IO Pins?
Much depends upon the:
I can report that Venture Capital firms - almost uniformly - 'frown upon such practice!' While MCU spec sheets (may) indicate (some) ability to 'accept such condition' - NEVER/EVER does the 'Duration AND Number of pins impacted' receive 'Spec Consideration!' (both number of pins - their 'proximity' (i.e. located upon the same side of the MCU) and the duration of such condition - as well as 'ambient temperature' - all (potentially) may yield 'over-dissipation' issues!) Never good!
[edit/adder] The 'method' by which the '3V3 Supply' is 'removed' - may also (perhaps often) generate voltage spikes - which may pass-thru to the MCU pins.
Greetings Bob,
Your & my posts bear identical 'time-stamps' - yet differ in their (overall) findings.
Hi,
i have another question concerning the hib mode....
when the microcontroller is in hib mode and an external reset on pin 63 (#rst) is applied ....
will then the microcontroller stay in the hib mode or does he ignore the reset?
and does he then change the state on the #HIB pin?
thanks a lot!
chris