Well we have two religious wars going now, one about input protection diodes, and the other about the definition of a "really obscure factoid". This is great! Not having wieghed in on the input diode fight, except to say "death to the Infidels!" I would like to weigh in on religious war #2 - the definition. Having started this thread, I claim the right to define a "really obscure factoid" . DEFINITION: Obscure Factoid: (N) a fact about PICS which, undiscovered, causes one to gnash one's teeth, emit gutteral growls, and bash 12C508's against one's workbench with a hammer for hours or even days while fruitlessly building useless circuits that won't work right. Once discovered,knowledge of these facts will often cause the discoverer to emit the word "D'Oh!" and whack his or her palm against his or her forehead. There. Does that clear it up any? We're up to around 20 or 30 factoids, so far. I'll post them all when we have run out. -- Lawrence Lile -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.