> I have to say you are probably better served buying the complete
> oscillator from Digi-key.
> I just got 10 of them (20 Mhz.) at $2.50 each. No muss, no fuss, they
> just work.
> Small package, (4 pins in an 8 pin dip), and low power.

That can be a convenience for a low volume product, but will cost at least
double what the crystal and two caps cost.  One good reason for having an
external oscillator is if you are driving multiple devices from the same
clock.

I've never had any problem with having the PIC drive a crystal directly
(except the time I didn't cover the window on a 16C77/JW), and I think of
this as the "easy" solution.


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin@embedinc.com, http://www.embedinc.com

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