For the resistor loaded NMOS inverter circuit shown in Figure. The transistor specifications are: k'=60uA/V^2, W/L=20um/5um, VT=1.6V. Use: VDD=8V, and RL=40kΩ.
The following critical voltages were calculated for you: VOL = 0.128V, VOH=VDD.
Determine the transition times: tf, tr, and tPLH with a capacitive load for one gate as CL=9pF.