I haven't used one, but the Dallas DS2404 seems as
if it would be fairly simple to use. It needs
an external battery and a 32,768 Hz crystal.
It can be accessed either by the Dallas 1-wire or
3-wire protocols.

http://www.dalsemi.com/DocControl/PDFs/2404.pdf

--Bob

On Thu, Nov 12, 1998 at 04:47:01PM -0700, Foster Brashear wrote:
> I am starting work on an application which requires a PIC to sometimes
> look to a clock/calendar chip to see if it's time to do something yet.
> Of course the C/C chip has to keep running on a battery when the PIC is
> shut down, and the simpler the interface the better.  Anyone have a
> suggestion for an economical, easy-to-use C/C part?
> Thanks,  Foster

--
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Bob Drzyzgula                             It's not a problem
bob@drzyzgula.org                until something bad happens
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