1) How do you measure VM, VOH and VOL? How do you measure VIL and VIL and why is this method used?
2) Identify the noise margins (NML and NMH) on the voltage transfer characteristic. Why are these useful?
3) Draw the power supply current as a function of the input voltage for a CMOS inverter. What is the current when the input is at VOH? What transistor causes this? What is the current when the input is at VOL? What transistor causes this? What is the dc power of the CMOS inverter?