> I'm designing a circuit using a PIC18F452 that is going
> to communicate through USART at 115200bps. From
>  the pic datasheet, I calculated that the ideal crystal
> for my app is 14.7456MHz (or 7.3728MHz, but I'll stick
> with the faster because I need the extra speed).

I'll take another tack, since you've had a number of
excellent answers about this from other folks...

Have you considered a three-pin ceramic resonator?
Accuracy is sub-crytal (~.5%), but much better than
internal oscillator or RC network.  Plus, the three pin
jobs have internal caps, so you just plug it in and go.
They're also more rugged than crystals.

My favorite is 81-CSTCC3.68MG-TC from Mouser.
Surface mount.  Run 3.68 into the PLL and you'll
get 14.72- sound familiar?

Mike H.

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