[time-nuts] Ultra low power RTC
Attila Kinali
attila at kinali.ch
Wed Mar 7 05:10:30 EST 2018
On Tue, 6 Mar 2018 21:57:32 -0500
Bob kb8tq <kb8tq at n1k.org> wrote:
> Assuming you are going to run it off a battery. What’s the self discharge
> rate on a reasonable battery?
With supply currents below 100nA you can assume that you are likely
to be limited by the self-discharge using coin sized LiMnO2 cells
(e.g. a CR2032 is specced in the order of 100-300nA self-discharge).
For the smaller cells, you have to check which one is larger, but
they are of the same order of magnitude.
Attila Kinali
--
It is upon moral qualities that a society is ultimately founded. All
the prosperity and technological sophistication in the world is of no
use without that foundation.
-- Miss Matheson, The Diamond Age, Neil Stephenson
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