Q.5. Design the digital circuit of a 3-to-8 line decoder by using a dual 2-to-4 line decoder (IC 74139). You can refer the pin configuration of IC 74139 Shown in Figure 5. a. Write the truth table. b. Draw the circuit diagram of the design. Ea Aga Ana Qua 2 Qia5 18 18 Qa GND 8 IC 74139 Figure 5 16 Vcc 15 Eb 14 Aob 13 Alb 12 Qob 11 Qib 10 Qb Qab Use 8 to 1 multiplexer to implement the logic function F= 2 (0,4,7,10,5,2,15,8,11)