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Draw 2 input CMOS NOR gate and using equivalent inverter approach and derive expression for $V_{IL},V_{IH}, V_{OH} ,V_{OL}$
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2-Input NOR Gate
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CMOS voltage transfer characteristics enter image description here

Region of Opertion of Transistors in a Symmetrical Inverter

Region Input Voltage $ V_i $ Output Voltage $ V_o $ NMOS Transistor PMOS Transistor
1 $ V_i \leq V_{TN}$ $ V_{OH} = V_{DD} $ Cutoff Linear
2 $ V_{TN} \lt V_i \leq V_o …

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