A series Re: [sdiy] unbuffered CMOS

[Roy J. Tellason]

On Thursday 20 January 2005 08:11 pm, anthony wrote:
> I missed the good explanations before posting.
>
> Thanks guys. The info is most enlightening.
>
> But I've remembered another dimension to the question that I wanted to ask.
>
> Now I have some 4016AE's. I know that the 4016 is basically a digitally
> controlled analog switch but I was wondering if the 'A' meant that it was
> the version before the 'B' series came out or does it mean something else
> entirely? And if it was say a 7404A - an all digital chip?

The original CMOS parts from RCA were spec'd to run on power supplies from 
5-15V.  The "A" series was spec'd to run a bit lower,  3-15V.  The "B" series 
went to a range of 3-18V.  Sometimes it helps to have all these old databooks 
around...