Hello,

It is new for me. Thank you for mentioned it. I will revise my projects in
this view. I spent a little time to measure the consumption of a pic with
the lowest clock rate. I should repeat this experiment with this knowledge,
because I didn't get the expected result.

Zsolt



The major problem with using internal pull-ups is they are quite high
> impedance, and if used on a floating pin can be subject to hum pickup
> injection because of the impedance. This may not be a problem when used
> with switches that have a 10n or so capacitor for debounce, but with no
> connection at all on the input is asking for trouble.
>
> The best score is to set any unused pin to an output, and the
> recommendation from Microchip is to set the output low for minimum curren=
t
> draw. I assume this is a function of the internal circuitry required to
> drive the high side transistor if set to a '1' state, but that is the
> recommendation for any system wishing to penny pinch the last micro amp o=
f
> current drain.
>
--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.