5
DIG1501
OCTOBER/NOVEMBER 2014
COMBINATIONAL LOGIC ANALYSIS
QUESTION 5
For the input waveforms shown in Figure 4,
51
Write out the Boolean expression for the output waveform
(2)
52
Sketch the logic circuit that will generate the output waveform
(3)
53
Express the Boolean expression in 5 1 using only NAND gates
(3)
54
Sketch the resulting logic circuit of the Boolean expression using ONLY
NAND gates
(4)
A
Inputs B
C
Output X
Figure 4
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