3 ms·

You should know which logic family you need before you even get searching - voltage levels and timing should be known beforehand, which will dictate exactly whi

• zokier 2y ago
  > voltage levels and timing should be known beforehand, which will dictate exactly which families are suitable TI alone has 13+ logic families for 3V3 for example, and all of them are faster than HC family (and thus usable for lot of applications). Nexperia has similar count, some of them are same-ish as TI, some of them are distinct. And other manufacturers have their own stuff. So that doesn't really cut down the options much. Look at the table on page 7 of TIs "Logic Guide" for example https://www.ti.com/lit/SDYU001 https://www.ti.com/lit/SDYU001 or Nexperias "Logic Application Handbook" pages 293 onwards https://assets.nexperia.com/documents/brochure/Nexperia_LOGIC_Handbook_201029.pdf https://assets.nexperia.com/documents/brochure/Nexperia_LOGI... Sure, if you are doing very fancy stuff, then you can boil all this down to some one specific family. But especially with 74 series these days when how often that is actually the case? And how often you just want some jellybean part that is easily available? And with part availability being what it is, I'd want to easily substitute parts from other logic families.