Question
3. (0.5 points) Use an 8-to-1 MUX (74LS151 above) to implement f(W, X, Y, Z) = m(0, 4, 5, 6, 8, 10, 12, 13). Pair
3. (0.5 points) Use an 8-to-1 MUX (74LS151 above) to implement f(W, X, Y, Z) = m(0, 4, 5, 6, 8, 10, 12, 13). Pair rows (0-1, 2-3, ...) so that MUX inputs are 0, 1, Z, or Z'. Show chip enabled, connect variables to address lines, and label function output.
4. (0.5 points) Use a 3-to-8 DECODER (74LS138 above) and an external gate AND or NAND with the fewestinputs to implement f(x, y, z) = m(1, 2, 5, 6, 7). (Hint: AND the Maxterms, NAND the minterms.) Show chip enabled, connect variables to address lines, and label the function output.
7. (0.5 points) For the following set of functions, design a system (i) using a ROM; and (ii) using a PAL.
F(A,B, C, D) = A'C'D+ B'D'
G(A,B, C, D) = A'BD+ AC'D' +BCD'
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