Figure P13.56 shows two approaches to realizing the OR

Chapter 13, Problem 13.56

(choose chapter or problem)

Figure P13.56 shows two approaches to realizing the OR function of six input variables. The circuit in Fig. P13.56(b), though it uses additional transistors, has in fact less total area and lower propagation delay because it uses NOR gates with lower fan-in. Assuming that the transistors in both circuits are properly sized to provide each gate with a current-driving capability equal to that of the basic matched inverter, find the number of transistors and the total area of each circuit. Assume the basic inverter to have a ( )n ratio of and a ( )p ratio of