>> >>It varies with vendor, but the lowest quiescent current I found was 80 >>ua, and that's WITHOUT the VCO running! > >I said 74C4046 or CMOS4046, not HC. Quiescent should be 5-10nA w/o osc >running (CD4046B 5V 20C). Another chip that was designed with low power >oscillation in mind was the 4047. CD4046 needs 70uW at 10kHz (14uA @ 5V) >and it runs down to 3V. The 4047 can run on 20uW (4uA) at 5V and 1kHz. If >you reduce the supply to 3V you can get them 50% lower probably. Thanks Peter, I did not realize the HC used more power than the C version. I'll search one out and see what the specs are. I actually like the 4046 as it had a comparator in the package, which would come in handy for my design too. GL to all. Art -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist