On 3 Dec 2003 at 7:33, Olin Lathrop wrote: > > He might have ment external crystal osc vs. internal *crystal* osc. > > There is no internal crystal oscillator. > Then all the specsheets I've read are wrong. You should call up all those companies and complain :-) "Internal Crystal Oscillator" has been touted in every spec sheet I've read from PICs to RF chips for those chips that have them. The term Indicates that the active device is on-chip. BRs, Mike -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads