http://www.linear-tech.com/pub/document.html?pub_type=desn&document=291 Jinx You should probably look at this link for Hot Swap info on I2C. Haven't read it closely, so may not be micropower enough for you, but interesting chip anyways. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads