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Data lost in RTC chip PCF85363ATT

Question asked by Yixin Wu on Jul 26, 2018
Latest reply on Aug 9, 2018 by Yixin Wu

Hello Community,

 

we are using PCF85363A chip to do time recording and data storage in its RAM. A capacitor is used as battery to keep the data for at least 7 days. Occasionally it is observed that, all data are lost if our target PCB is reset. During the reset the VDD 3.3 V is actually still powered. I would like to ask, in which condition all data could be reset on PCF85363A?

Thank you for any help.

 

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