Hi,
Several GPIO pins, including GP1[1], have internal pull-ups at 3.3V setting.
These GPIO pins immediately drop to 0V when the 3.3V power supply is turned off during power down, but after about 100ms, a pop voltage of several hundred mV is seen to follow the ramp down of the 3.3V power supply line.
Q1: Is this expected behavior?
Q2: Is this phenomenon a leak caused by the 3.3V power supply?
Best Regards,
UNA