[time-nuts] Ultra low power RTC

Mark Sims holrum at hotmail.com
Tue Mar 6 22:59:34 UTC 2018


Sparkfun is selling an interesting RTC clock chip board.  It draws 22 nA.  It has a rather novel clock generator... a tuning fork crystal disciplines an RC oscillator every few minutes.  They claim 3 minutes per year drift.

https://www.sparkfun.com/products/14642


More information about the Time-nuts_lists.febo.com mailing list