This product training module presentation is an overview of the Real time clocks from NXP. This training module also provides information about demo boards and application notes for real time clocks.

The RX-5412SF real-time clock module comes equipped with a time-stamp function for recording and storing times and dates of abnormal events such as system errors and warning signals. Its time-stamp ...

The RX-5412SF real-time clock module is equipped with a time-stamp function for recording and storing the times and dates of abnormal events such as system errors and warning signals. The part has ...

If you’re looking for a 1-second time reference, you’d probably just grab a GPS module off the shelf and use the 1PPS output. As demonstrated by [InazumaDenki], though, an old quartz clock module can ...