Repeat Problem 17.23 for V CC = 3.3 V. Assume the input condition is X = Y = 3.3 V. Problem 17.23…

Repeat Problem 17.23 for V_CC = 3.3 V. Assume the input condition is _X = _Y = 3.3 V.

Problem 17.23

Figure P17.23 shows an improved version of the DTL circuit. One offset diode is replaced by transistor Q₁, providing increased current drive to Q₀. Assume β = 20 for both transistors.

(a) For _X = _Y = 5 V, determine the currents and voltages listed in the figure.

(b) Calculate the maximum fanout for the low output condition.