Hello PIC users,

Can any of you recommend a Real Time Clock that is easy to use with
the PIC16C57?  I have considered the DS1603 (a 32 bit elapsed time
module -- with crystal and battery built in).  I have also heard of
the TIC (Time In a Can) -- which is a self contained lithium battery
with a one line serial access to a RTC.  Unfortunately I can't figure
out who makes the TIC, or where to get the DS1603 (or even how much
one would cost.)

So could anyone tell me:

1) A good RTC to use with the PIC (<4 I/O lines please).
or
2) Who makes / where to get the TIC.
or
3) Where to get the DS1603.

Thanks in advance!

--Jason Gorden