CORE9G25 needs a single line 3.3 volt DC power supply which can be provided in any combination on the following pins:

Power lines Aria pins
+3V3 DC power in N1, S1, E24, W24
GND signal ground N24, S24, E1, W1

RTC backup battery

Applying 3 Volt DC on E1 (GND) and E20 (VBAT +3VDC) it is possible to mantaint the RTC (Real Time Clock) active when the power supply if off. This will mantain the system clock up to 6 months with no power using a small CR1220 Lithium battery.

A bigger battery can be used to extend the time duration.


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