On Thu, Apr 14, 2011 at 4:55 AM, IVP wrote: > If inputs are going to be out of your control at some time it > probably is a good idea to have reasonable protection. It's > something I do whenever possible, and it's paid off a couple > of times, saving repairs. For example someone who thought > an SX RTCC counter would count more reliably if they used > a 12V signal instead of 5V. Yeah, I know. But they did anyway Thoughts on this little guy? http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=3DBZX84C5V= 1TS-FDICT-ND 6 pin TSSOP, 3 independent 5.1V Zeners. > At the very least it will give you some peace of mind Uh...maybe! Josh --=20 A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. =A0 =A0 =A0 =A0 -Douglas Adams --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .