> 12Fxx, but remember to save OSCAL and BG And who can tell me what those BG bits are for? - there is no mentioning of 'bandgat' anywhere in the datasheet - the 12F has no 'absolute' internal voltage reference (only Vcc-derived references) 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.