> > As far as I understand from this thread > > I think you may have misunderstood something. There wasn't > any mention of out of spec usage, just a caution that the same > device isn't made the same by various manufacturers and that > unexpected performance may result from careless substitution Yeah, but was that use within the specs? Delay times, schmitt-trigger tresholds etc. that differ slightly are to be expected, even within one manufacturer. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.