2018-08-20 10:29 AM
2018-08-20 11:23 AM
Not sure the speed is the issue, make sure your supply gets cleaned up and that you design and shield your boards suitably.
2018-08-20 01:26 PM
you may shake the pins off the chip... if its tooo violent.
If you are using lead free solder, the processor pins may start fracturing within a year...
but the RTC registers wil be fine, although the Time of Day will always be a little out, since the RTC is not really suitable to keep time longer than a few days.