TTL AND gate
Électronique / Electronic
Did you figure out how to make an AND gate using the NAND gates?
Hope so, and now we'll see how right you were. Leave the Select Switch at B as you build this circuit.
When you've finished, put the power ON. Press the Key. What does LED 1 do?
Now set the Select Switch to A while pressing the Key. Is there any change in LED 1?
As you saw, pressing the Key and setting the Select Switch to A are 1 inputs, causing a 1 output from the AND gate. Can you follow the 1 input through the circuit until you reach a 1 output? Try it. and don't peek at the answer.