> You had to DRIVE the PIC, of course, the OSC won't run > that fast. I made a post a long long time ago about a 452 that I accidentally PLLed with a 19.6608 (aha, remembered this time, Jan-Erik !!) instead of a 9.8304 It appeared to work (delay loops, some I/O etc) at 78.6432MHz -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist