Yes, you if allow an output pin to output >40mA for a length of time, it will damage the pin, maybe some around it, and possibly the whole chip.
If the uC is warm to the touch, that's usually a good indication of a damaged chip.
Yes, you if allow an output pin to output >40mA for a length of time, it will damage the pin, maybe some around it, and possibly the whole chip.
If the uC is warm to the touch, that's usually a good indication of a damaged chip.