RTC on tx1


RTC on tx1 is backed up by super Cap (80000uf).
How long(duration) RTC can hold the contents if board is powered down?
Is there any other way, other than connecting battery cell to increase the time, before RTC can run out of power?
What are other cap values that can be used for this?
OEM product guide and Platform adaptation guide does not provide any info on this.


Hi, the RTC current is 2uA typically. The full charged voltage is 2.45V, you can calculate the time with these. Also you can choose other cap values accordingly.