Hello
in K1 schematic there are 2 NOR PORT (U6) and 2 NOT PORT (U7).
Why not use the other 2 NOR in U6 transforming it in NOT PORT?
Thanks
The two NORs are used to extract the clock signal from data signal and delay it behind the data one. The two NOTs are used just to sharpen them up. It's basically the same design as in the K16.
I'm not sure you can do the same with two NOTs instead of two NORs. Never thought about it, since it's working OK.