# CMOS behaviour

1. Jul 24, 2014

### MissP.25_5

Hello.
Can someone explain to me what does $V_i=L$ and $V_i=H$ mean in CMOS inverters?

2. Jul 24, 2014

### Staff: Mentor

Does Vin equals a logic LOW signal, and Vin equals a logic HIGH signal, fit the context? The allowable voltage range of each level is dependent on the supply voltage. Remember that CMOS can operate over a wide range of supply voltages.

3. Jul 24, 2014

### MissP.25_5

I just found the answer! Yes you are right. Vin = L= 0v and Vin=H=Vdd