November 25, 2024, 06:15:09 AM

VBat separated for RTC

Started by Manu, September 25, 2012, 09:00:47 PM

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Manu

Hello Olimex team,
May I suggest that on future Olimexino-STM32 PCB release you add a possibility to separate VBat pin (1) of the STM32 from 3.3V? Using pads than can be cut in middle for example.
This would allow us to easily connect a 3V battery directly to it, which makes internal RTC running all the time at very low current consumption (less than 1.5uA).
I cut the track and connected a 3V lithium battery, it works very well, and an updated PCB would makes things easier.

Many thanks.

Manu