I can't tell if the people on AVRFREAKS are really that dense, if they are really all 12-year olds, or just that obnoxious. Does anyone know where Atmel documents (and if it's not in an engineering parameters table, it's not documented) the FLASH retention lifetime of their ATMega processors? The ATMega644 in particular? I've looked in the processor manual, it's not there. I've also tried asking Atmel and have not received a reply. Thanks, Bill -- Psst... Hey, you... Buddy... Want a kitten? straycatblues.petfinder.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist