one output show with the ls7455 please correct pins.

4)Disuss the results. D. 4 x 16 Decoder Implementation: 1) Implement either the SOP function of part A or the POS function of part B using two 3x8 decoders (using two 74155 IC's) to form a 4 x 16 decoder. Add labels such as DO, D2, etc., to all used decoder outputs Analyze the circuit and graph A, B, C, D, f, all used decoder outputs, and a bus defining the decimal value of the 4 waveforms {A, B, C, D). The length of the timing diagram should be such that all 16 possible combinations of A, B, C, and D are shown in order. Verify that f is HIGH for each minterm as described above. Include an appropriate title on the graph. Discuss the results. Do the used decoder outputs (DO, D1, etc) appear as expecte Explain. 2) 3)