Logic Gates

What is the equivalent gate of the circuit?

AND

What is the equivalent gate of the circuit?

OR

The output of a Buffer gate is HIGH when?

The input is HIGH.

What is the equivalent gate of the circuit?

AND

If a 4-input OR gate has sixteen input possibilities, how many of those possibilities will result in a LOW output?

One

Which logic gate does the truth table represent?

NAND

What logic gate is this circuit equivalent to?

OR

What logic gate does the following truth table represent?

NOR

Find the correct input levels for A, B and C for the following logic circuit.

A = 0; B = 0

Find the correct input levels for A, B and C for the following logic circuit.

A = 1, B = 0

How many two-input AND gates are required for a circuit with an output of Y = CD + EF + G?

Two

Given the logic circuit:

• Input A goes into a NOT gate.

• The outputs of NOT A goes into an AND gate.

• Input B goes directly to AND gate.

• The final output is Q.

Construct the truth table for Q.

A security door opens if:

• The keycard is swiped (K = 1) AND

• Either the PIN code is correct (P = 1) OR the fingerprint scanner accepts (F = 1).

Draw a logic circuit to represent the conditions.