I remember learning in school that one can construct any logical circuit from solely
First of all, I am wondering if this is how it's actually done: i.e. when Intel makes a CPU, do they build all the registers, etc. using
NOR gates, or do they have some other fancier way of doing things?
Secondly, I'm wondering if constructing everything in this manner increases propagation delay compared to a circuit made using
NOT gates as well.
I know that when using
NMOS configurations to build gates, an
AND or an
OR comes out as 2 stages as opposed to a
NAND or a
NOR which are both only 1. Since I know you can make an
AND from 2 cascaded
NANDs and an
OR from 2 cascaded
NORs, it seems as though propagation delay would not increase as long as manufacturers were using both
Does anybody have any insight on all this, especially as to what is really done on manufactured ICs?