Test each IC in turn.
Make sure that you disconnect the
battery each time.
If the IC gets hot to touch,
disconnect the battery immediately and check your circuit.
Fill in the truth tables for each
gate.
|
4001 |
4011 |
||||
|
Pin 1 |
Pin 2 |
Pin 3 |
Pin 1 |
Pin 2 |
Pin 3 |
|
0 |
0 |
|
0 |
0 |
|
|
0 |
1 |
|
0 |
1 |
|
|
1 |
0 |
|
1 |
0 |
|
|
1 |
1 |
|
1 |
1 |
|
|
4071 |
4081 |
||||
|
Pin 1 |
Pin 2 |
Pin 3 |
Pin 1 |
Pin 2 |
Pin 3 |
|
0 |
0 |
|
0 |
0 |
|
|
0 |
1 |
|
0 |
1 |
|
|
1 |
0 |
|
1 |
0 |
|
|
1 |
1 |
|
1 |
1 |
|
|
4070 QUAD 2-input
EXOR |
4077 QUAD 2-input
EXNOR |
||||
|
Pin 1 |
Pin 2 |
Pin 3 |
Pin 1 |
Pin 2 |
Pin 3 |
|
0 |
0 |
|
0 |
0 |
|
|
0 |
1 |
|
0 |
1 |
|
|
1 |
0 |
|
1 |
0 |
|
|
1 |
1 |
|
1 |
1 |
|