Figure 9-79 shows how a multiplexer can be used to generate logic waveforms with any desirable pattern.

Question:

Figure 9-79 shows how a multiplexer can be used to generate logic waveforms with any desirable pattern. The pattern is programmed using eight SPDT switches, and the waveform is repetitively produced by pulsing the MOD-8 counter. Draw the waveform at Z for the given switch positions.

Figure 9-79

+Vcc 1 MOD-8 counter 17 S S So CLK- 16 M 14 13 Eight-input multiplexer 74HC151 N l2 lo IW E