>> suggest: the 16F877 or the 18F452. Another question: Can the 18F452 self-program ( bootload ) like the 16F877? - Robert Shanks -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads