VDD_RTC AMR/ROC

[chrisz]

Is VDD_RTC intended to be an "always on" supply for keeping the RTC alive when the rest of the part is in deep sleep? In that case, is the AMR/ROC value for VDD_RTC the same as the other power supply pins on the part? It would make sense, but I wanted to double check.

What is the max current draw for VDD_RTC during normal operation? The reason for asking is that if this pin is always on, it will require a low quiescent draw LDO for battery operation, and understanding power draw is useful here.

[chrisz]

Just to share some info I learned offline for others who might be wondering:

Apparently in deep sleep mode, power is required on VDD_RTC and VDDA (pin 46).