> I've got a design that will use a 16F877 and a 16F676, on the
> same PCB.  In the interest of saving space (& component count),
> I'm wondering if I can reliably drive both OSCIN's with the same
> XTAL?  I know the datasheet says I can use an "external" clock if
> the device is in "XT" config, but obviously I don't want to use
> the OSCOUT of one device to drive the other since it's 1/4 the
> Frequency.  If anyone's done this, what is your approach to
> determining the necessary cap values?  Table 12-2 of the
> PIC16F87X datasheet gives values that I've used in a
> single-device context, but with the extra loading presented by a
> 2nd device, I don't know what behavior to expect.  If there's a
> valid reason *not* to take this approach, I can obviously avoid
> it, but any words of wisdom are appreciated!

        The has been discussed before, check the archives. General consensus is the
most trouble free way is to use an external oscillator to drive both PICs.
TTYL

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