VDD_RTC AMR/ROC

chrisz
Posts: 4
Joined: Mon Jan 04, 2016 4:45 pm

VDD_RTC AMR/ROC

Postby chrisz » Mon Sep 05, 2016 1:29 pm

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
Posts: 4
Joined: Mon Jan 04, 2016 4:45 pm

Re: VDD_RTC AMR/ROC

Postby chrisz » Tue Sep 20, 2016 2:26 am

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).

Who is online

Users browsing this forum: No registered users and 126 guests