> Input pins draw more current when they are not fully on or off.  This
> is because the internal input buffer turns both the N type and P type
> fets on partially, sinking VCC directly to GND.  I don't know what the
> PIC curve is, but some cmos chips will burn several mA if an input pin
> is at a specific voltage between GND and VCC.
>
> Should be kept in mind for portable projects.
>
>
>   

A way arround this is to set the pin as an analog input, this disables 
the digital input buffer (which is what draws lots of current in the 
mid-bisas situation) but not the tristate output circuitry.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist