David the pin can sink 25 ma, but you must be limited the current to
less that 25 ma (whit a series resistor).

example                    +5V
                            |
                            < RNWK
                     R1     >
pic pin ___--------/\/\/\---|---|
                                |
                                  |_ SWITCH
                                  |
                                |
                                |
                                _ (GND)

 Francisco
David Olson wrote:
>
> I've got some switches externally located off my PIC board (about 2 feet)
> and I'm purposely driving my port pins high when the switches are closed
> (due to the fact that I don't want a short to give me an unwanted trigger)
> and I'm not sure how to size the pulldown resistors. I'm thinking of using a
> resistor network since I need 8 resistors. Most of the networks are or about
> 1/16 or less in wattage. If a pin can sink 25ma, is that what I need to
> consider in my power calculations? 5v X .025 is close to 1/8 watt.
>
> I'm locating the resistors on the PIC board and not with the switches.
>
> -DO
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