It *MAY* work.
I understand (possibly wrongly :-)) that the -04 and 010 are selected
on test out of the same production batches. If so the -04 parts would
have been deemed to be too unreliable to be sold as 10 MHz parts BUT
sometimes the need to have both parts available may mean that they
sell some parts as -04 even though they meet the -10 spec.

Try it and see. Don't depend on it for anything crucial.
certainly -04 16F84's have been reported as running well above 4MHz
and -10 parts have been reported here as running at 16 MHz by some
people. be aware that some features may fail before others and that
setting the supply voltage as high as permissible (or a little
higher? :-)) may help t get the most possible speed from a given
device.



-----Original Message-----
From: Javier Grijalba <Grijalba@CVTCI.COM.AR>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Friday, August 28, 1998 1:33 PM
Subject: 10 MHZ with F84???


>What may happen if I connect a PIC 16F84-04/P  to a 10MHZ cristal??
>Javier
>