Problem

Consider a four-input NMOS NOR logic gate with a depletion load similar to the circuit in...

Consider a four-input NMOS NOR logic gate with a depletion load similar to the circuit in Figure P16.19. Assume VDD = 2.5 V, VTND= 0.4 V, and VTNL = -0.6 V. The maximum value of v0 in its low state is to be 50 mV. (a) Determine KD/KL (b) The maximum power dissipation in this NOR logic gate is to be 50 μW. Determine the width-to-length ratio of each tran­sistor. (c) Determine v0 when (i) two inputs are a logic 1, (ii) three inputs are a logic 1, and (iii) all inputs are a logic 1.

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