[sdiy] So what's the difference between these IC's?

[Peter Grenader]

You should have a look at the 74XX series TTL logic chips - there are tons
of repetitions there.  Some have to do with pin configuration, some with
output design (open collectors), some with drive, etc.

Scott Stites wrote:

> Hi list,
> 
> I've been sorting through my warehouse of goodies, and, as usual, the same
> questions pop up about why there are two different CMOS chips that perform
> the same function.  So, I thought I'd drop everything and bug the list. =0)
> 
> Specifically:
> 
> CD4030 versus CD4070 - both are quad 2 input XOR gates
> 
> And the same applies to the CD4016 versus the CD4066 they're both quad
> bilateral switches.  So - what's the difference, if any?
> 
> Hopefully somebody can answer this nagging question I've never gotten around
> to asking until now....
> 
> Cheers,
> Scott
> 
>