> > use them for. Is something as simple as a button ok? My major concern is
> > pcboard space.
>
>That's exactly what they are supposed to be used for. They eliminate the
>need for a external pullup resistor.

This is not entirely true.  They don't "eliminate" the need for external
pullups.  You have to be aware of your requirements for rise/fall times.
The weak pullups are exactly that... "weak."  If you need faster response,
you're better off using 10K, 4.7K, or even 2.2K.  I don't know what the weak
pullups are, but they're probably something in the 100K range.  Maybe the
datasheet gives more information; I've never had to use the pullups.

--Andrew
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics