Assume the following unless stated otherwise for a 0.18 μm CMOS proces

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Assume the following unless stated otherwise for a 0.18 μm CMOS process: VDD = 3.3 V, Lmin = 0.18 μm Vtn = 0.5 V or −1 V (choose accordingly), Vtp = −0.5 V μnCox = 390 μA/V2, μpCox = 90 μA/V2 Consider a resistively loaded inverter with a load of Ctot = 180 fF. a) Calculate RL so that VOL = 0.15 V using a minimum-size driver. c) Calculate the τPHL propagation delay using the differential equation method and the RC method. Compare and comment on your results.

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Assume the following unless stated otherwise for a

0.18 μ m

CMOS process:

V_{D D} = 3.3 V, L_{m i n} = 0.18 μ m

V_{t n} = 0.5 V

- 1 V

(choose accordingly),

V_{t p} = - 0.5 V

μ_{n} C_{o x} = 390 μ A / V^{2}, μ_{p} C_{o x} = 90 μ A / V^{2}

Consider a resistively loaded inverter with a load of $C_{tot} = 180 f F$ .
a) Calculate $R_{L}$ so that $V_{O L} = 0.15 V$ using a minimum-size driver.
c) Calculate the $τ_{P H L}$ propagation delay using the differential equation method and the $R C$ method. Compare and comment on your results.