[sdiy] 74HC165 vs CD4021..

[René Schmitz]

On 14.10.2022 19:52, Tom Wiltshire wrote:
> I can't speak to the reliability question, but I'd choose the 
> far-more-modern and more-available 74HC part over the ancient-history 
> 4000-series CMOS.

4000s have their place, say when you need to interface with 12V or 15V 
directly. Here I would also choose the HC series. More vendors, easier 
to get.

>
> I learned about logic circuit using 400-series circuits and a 9V 
> battery on my breadboard about 40 years ago. They must have come up 
> with something better since then, right?!?

HC have been around for 40 years by now. But 4000s are still older, 1968...


Best,
  René


--
synth at schmitzbits.de
http://schmitzbits.de