arusr:
Caltoa:
It is more likely have to do with the 16MHz versus the 8MHz.That doesn't matter a lot, if the chip is in sleep mode for 99% of the time.
Do you want to have it running continuously for 6 months ? that is not possible.Oh ok, that's what I was hoping. The chip will be sleeping for 99.9% of the time.
Furthermore if the time awake is shorter with a faster clock it may be
more energy efficient to run at 16MHz since the total charge flowing
through the process would be about the same, but any peripheral chips
may be powered up for a shorter period too... You also have to factor
in crystal start-up time and suchlike to make such an analysis.