[time-nuts] low power divide by 5

[ed breya]

I just looked around for some AC390s - it appears they may have been 
made only by Toshiba and Hitachi, and have gone obsolete. Looks like you 
can't just call Mouser to order some up. But, looking at this site, it 
appears that a lot exist - at least a million pieces floating around out 
there, if these inventory numbers are true.

https://www.digchip.com/datasheets/quote.php?action=search&pn=74AC390

Ed