Hi, I've been looking around for a 32-bit time counter (to replace a BCD real time clock), possibly with sub-second resolution and found some Maxim parts that do the job but, unfortunately, do not have any 'internal calibration' functionality. Other RTCs I have used have had a 512Hz output which is used to program the internal register to compensate for using a cheaper crystal but I cannot any 32-bit counter with such a feature. Anyone know of a suitable part? Regards, Dan -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body