>> The 16C84 is a naming error. It is, for all practical purposes, an F >> chip. > > In what respect ? It can be electrically re-programmed, using algorithms and hardware that programs 16F chips. All other C chips are EPROM chips: either program-once (OTP), or windowed (for development, use an UV-eraser to erase). Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist