Figure 8-13
You should be able to observe your output (Y or Z) on the DSO as a "serial stream" with the connections shown in Figure 8-13. Put the DSO Horizontal mode into Roll.
A
Build the circuit below. The 74HC193 "binary counter" takes a 1 Hz square wave that goes from 0 V to +5 V. The outputs of the binary counter are 𝑄𝐴, 𝑄𝐵 and 𝑄𝐶. With the connections shown, the counter outputs will "run through" the logic inputs in the order given above, i.e. the outputs will correspond to CBA in the truth table. Thus, we don't have to change wiring to test each CBA combination.
C