Quote Originally Posted by mackrackit View Post
Even if you do not configure BOD the PIC will only operate within a certain voltage range for the OSC speed it is running at. So if something causes a voltage draw for a short period of time that the regulator can not handle the large capacitor will help. (maybe a LCD back light coming on )

A switch used as an input that changes position rapidly, or an output to a high speed relay, etc...

Personally I never have like the internal pull-ups, I always use an external pull up/down. And never let a pin float, always have control.
Thank you very much for the information.
I need internal wpu because for my project i need to enable and disable them on the fly in software. Is there another easy alternative?

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