Peter, On Sat, 2 Jun 2007 17:02:44 +0200, Peter Feucht wrote: > Hi, Howard, > > It's a three pin resonator. > > Checked the data sheet again: it clearly says on page5: Vdd=3,0 - 5,5V: OK, well if the PIC is also a 3V rated one (16LFxxx), then I'm out of ideas - sorry! Cheers, Howard Winter St.Albans, England -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist