pseudo nmos inverters

Thread Starter

salma.shabayek

Joined Oct 25, 2009
2
Dear all
Im supposed to calculate the propagation delay of the pseudo nmos inverter

i found these 2 rules:
tplh=(1.7*C)/(Kp*VDD)

tphl=(1.7*C)/(kn*(1-0.46/r)*VDD)

are these 2 rules right?
and if yes . from where did they come??
 
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