> IOW, it's OK to have digital signals on a pin configured as an
> analogue input or potential analogue input but it's not always OK to
> have analogue voltage on a pin configured as a digital I/O. A series
> current-limiting should prevent excessive power consumption

A series current-limiting resistor is *not* going to help the power 
consumption issue. The power consumption occurs inside the PIC when the 
input is neither a valid 0 nor a valid 1 value. The current is *not* drawn 
thru the input, but rather between the power and ground rails in thePIC 
itself. The series resistor is not going to change the voltage seen by the 
PIC input and thus will be no help.

-- Bob Ammerman
RAm Systems

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