1. What is multiplexer? Explain. 2. Design a 38 decoder. 3.5 PROCEDURE 1. Implement the same function using 8-to-1 MUX. Choose to connect A, B, and C to the select lines of the MUX, then we need to feed the MUX inputs with values that are function of D. (Feed 16 th pin of MUX with 5V and connect 8 th pin to the ground.) 2. Draw the circuit to your report Figure 3.3 3. How do we realize 2X4 decoder with logic gates? Use the truth table in Figure 3.3. 4. Realize f(A,B)=(0,2,3) with 24 Decoder. (Feed 16 th pin of the Decoder with 5V and connect 8 th pin to the ground). 151 8-TO-1 LINE DATA SELECTORS/MULTIPLEXERS FUNCTION TABLE Figure 3.4 74151 is a 8 line-to-1 line multiplexer. It has the schematic representation shown in Figure 3.5. Selection lines S2,S1 and S0 select the particular input to be multiplexed and applied to the output. Strobe S acts as an enable signal. If strobe =1,74151 is disabled and output y=0. If strobe =0,74151 is enabled and functions as a multiplexer. Table 3.1 shows the multiplex function of 74151 in terms of select lines. Table 3.1 Figure 3.5IC type 74151 Multiplexer 81 U Uivivenify EE242 Digital Systems Laboratory nant of Electrical and Flocuesics Finginceriag 3