Chronodot

Real-time clock/battery backup module

In Stock.

These products normally ship from our San Francisco warehouse in 1-3 business days.

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Chronodot module $15

Temperature-compensated real-time clock with battery backup

The Macetech Chronodot is based around the Dallas DS3231S real time clock (RTC). The DS3231S is a hybrid chip that incorporates a temperature-compensated crystal oscillator (TCXO), and is specified to provide accuracy within +/-2 minutes per year, if kept between 0 and 70 degrees C. The Chronodot module comes almost ready to use, with the DS3231S pre-soldered on the board. You get to solder the headers and (included) lithium battery when you're ready. (Some of the units that we have in stock do have the headers pre-soldered to the board; please let us know at the time of your order if you have a special need for one where the headers are *not* soldered in advance.) Battery life is estimated to exceed seven years, and the battery is replaceable. Additional documentation is available at macetech.com