We have been developing our product with MK22FN1M0AVMC12.
We worry about a situation as follows.
The VREGIN pin is connected to VBUS(5v) with USB connector.
When 5v is applied to the VREGIN pin, the MCU 3.3v voltage is not applied to VDD pin yet.
Does such a situation have any problem for MK22 ?
does it decrease the lifetime of MK22 ?