Question 3 (a) (i) Explain the difference between a demultiplexer and a multiplexer. Implement the logic function specified in Table 3 by using a 74LS151 integrated circuit chip (8 to 1 multiplexer). Table 3 Input Output A3 A2 Ao Y 0. 0. 1 1 1 1 1 1 1 1 1 1 1 1. 1. 1 1 1 1 1 1 1 1. 1 1. 1 1. 1 (b) Figure 3(i) shows the BCD to 7 segment display decoder with active HIGH output that apply a HIGH logic to the anode of these segments that are to be activated. This decoder uses a common-cathode arrangement where the cathodes of all segments are tied together and connected to the ground. Determine the output of this decoder when the input is decimal number 3. (ii) the input is decimal number 5. (iii) the common-anode arrangement is used where the output is active LOW and decoder input is 0110. B BCD BCD to 7-Segment Decoder e Figure 3(i) (c) A 3 x 2 highest priority encoder with active LOW inputs and outputs is shown in the Figure 3(ii). (i) Draw the truth table for the encoder and obtain the Boolean expressions for cach outputs. (i) Draw the corresponding logic circuit for each outputs. A. HIGHEST PRIORITY Yo ENCODER Y Figure 3(ii)