Pre lab Exercises

1.    In your log book, draw the symbol and truth tables for the following gates:-
        NOT, OR, AND, NOR, NAND and EXOR.

2.    Name the number of the TTL equivalent ICs for all the gates above.

3.    Assign the pin numbers for the inputs and outputs to be used in the lab.

4.

FIGURE 1.12
 

      (a)    For the circuit in FIGURE 1.12 complete the truth table below:-

 
 
inputs,
x
output,
z
0
 
1
 
   
      (b)    write the Boolean Equation for the output Z.
      (c)    How many 7404 inverter IC will you use to implement the circuit in the lab?
      (d)    Indicate on the diagram in FIGURE 1.12 the pin numbers that you would use to implement the  circuit in the lab.

5.     For the combinational circuit in FIGURE 1.10 redraw the circuit and its truth table in your log book. State the following:
        (a)    The type of gates.
        (b)    The equivalent TTL IC number.
        (c)    Assign the pin numbers that you would use to make connections to the circuits in the lab.
        (d)    The quantity of ICs (chips) that should be used for circuit implementation with TTL 74 series ICs.

6.    Gives two advantages of implementing combinational circuit using all NAND gates compared to using mix gates.
 

OBJECTIVE | DISCUSSION |  PRE LAB | PROCEDURE RESULTS