[sdiy] Another new hard to find part....

[Colin Hinz]

On Tue, 6 Jul 2004, Roy J. Tellason wrote:

> What I don't understand is the point of numbers like 74HC4xxx,  where they're
> (apparently?) giving you the function of a 4000 series part but putting a 74
> in front of it?  Maybe I'm just missing the point as I have not yet seen a
> databook for these newer families.

Presumably, these would be 4xxx functions operating at 74HCxxxx voltages
and speeds. The switching speeds of the two families are *vastly*
different.

- Colin Hinz
  Toronto, Canada