Threshold logic in CPU's has been around in ARM processors for quite a while. AmbiQ has something similar that's available in boards from Sparkfun. The data s

Threshold logic in CPU's has been around in ARM processors for quite a while. AmbiQ has something similar that's available in boards from Sparkfun. The data sheet from this claims 6uA/MHz: https://www.sparkfun.com/sparkfun-thing-plus-artemis.html https://www.sparkfun.com/sparkfun-thing-plus-artemis.html