Sorry what? Could you please use this cool new concept called sentence and ask something that makes more sense?em questioning about the time delays.
That's not true of any modern IC logic gates, of course.Welcome to the forum. In the olden days "N" type gates were preferred. The reason being is they would "sink" or pull down a voltage. If a short occurred no damage. Or's and And's "sourced" a voltage. If you shorted the output you toasted the IC.
If you just wanted to introduce delay in the signal, a BUFFER would be perfect. An EVEN number of NOT gates in series would work as well.em questioning about the time delays.
Are you sure about that?You can build any circuit from either xors, ....
As others have indicated, NAND and NOR gates, as a rule, are faster and require less silicon area because they only use 4 transistors instead of the 6 required for an AND or OR (talking CMOS here). Between a NAND and a NOR, the NAND has an advantage because the NFETs are in series and the PFETs are in parallel. NFETs, for the same size, have better drive strength so you can use, roughly, the same size (i.e., minimum geometry) transistors and get a balanced circuit. With a NOR, you generally need to increase the size of the PFETs considerably to achieve this.Among AND and NAND , OR and NOR gates, practically which would be preferable
?
You're right, XORs are not functionalluy complete like NANDs and NORs are.How do you make an OR from nothing but XORs?
by Jake Hertz
by Duane Benson
by Aaron Carman
by Aaron Carman