I have been reading this thread off and on and was noticing
the discussion of the 10F206 and the fact that it might be useful in
clocking applications where the NE555 timers have been used in the
past.  A quick look at the data sheet for this chip and it looks like
the usual sort of good PIC resources are available.  What is special
about this particular PIC?  The 12F675, 12F629's and 12C509 chips can
all be programmed as clock generators in the audio frequency to low
VLF ranges.  PIC's like the 12C509 don't have interrupts so one has to
be careful to make the code isochronous if jitter is a factor, but all
of them can be programmed to give a square wave output which is some
sub-multiple of the clock.

Martin McCormick WB5AGZ  Stillwater, OK 
OSU Information Technology Division Network Operations Group
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