Hi Sheldon,

Well, if you enable the internal pull-up resistor then "of course" the pin measures "high" - it's being pulled high by the resistor.

The pullup current, according to the datasheet, is 50-400uA @Vdd=5.5V so if you have the pullup resistor enabled and ground the pin you'll get a current of 45-360uA thru the Vdd pin, thru the WPU resistor, out thru the pin and to GND. If you do the same thing with two pins, then another 45-360uA and so on. (This is with Vdd @5V).

The current draw you meassure, is that of the PIC itself or on the input to the LDO? What's the quiescent current of the regulator?

/Henrik.