Re: hi plz can u tell the differe for 180 nm and 90 nm techn
Yes, the max frequency depends on the logic. You can evaluate the intrinsic speed of a technology by creating a circular loop of an uneven number of inverters. This circuit will oscillate as fast as it can, and that frequency is called the toggle frequency. It is usually quite high and is only of academic value to designers.
The actual frequency a circuit can achieve is limited in part by the speed of the transistors, but much more by the nature of the circuit.