Wouter van Ooijen wrote: > The proper answer is (if you want reliable maximum speed): none, use a > resonator, crystal, or canned oscillator instead. And read the posts > about those. IMHO a 3-leg resonator (with build-in caps) is the most > hassle-free, but also the least accurate (but for most purposes, > including serail asynch comm, accurate enough). I don't need precision. It can be 18 MHz, it can be 21 MHz. A ball park figure will do. Can you please suggest a resonator part number that I can look up? -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist