DEE20033 LOGIC GATES

DEE20033 DIGITAL ELECTRONICS

CHAPTER 2 - Logic Gates

AND GATE

• The output of AND logic gate will only be 1 if ALL the input values are 1.

OR GATE

• The output of OR gate will be 1 as long as ONE of the input value is 1.

NOT GATE

• Also called an INVERTER.

• The output is the inverse of the input value.

NAND GATE

• NAND gate is combination of AND and NOT gate.

• The output of AND will be inverted by NOT gate to obtain final output of NAND.

NOR GATE

• NOR gate is the combination of OR and NOT gate.

• The output of OR will be inverted by NOT gate to obtain final output of NOR.

EXOR GATE

• The output of EXOR gate will be 0 if all the inputs are of the same values.

EXNOR GATE

• The output of EXNOR gate will be 1 if all the inputs are of the same value.

Multiple Choice

This is _________ logic gate.

• AND

• OR

• NOT

• NAND

Multiple Choice

This is _________ logic gate.

• AND

• OR

• NOT

• NAND

Multiple Choice

This is _________ logic gate.

• AND

• OR

• NOT

• NOR

Multiple Choice

This is _________ logic gate.

• NAND

• NOR

• EXNOR

• EXOR

Multiple Choice

This is _________ logic gate.

• NAND

• NOR

• AND

• OR

Multiple Choice

This is _________ logic gate.

• EXOR

• EXNOR

• NAND

• NOR

Fill in the Blanks

Question 7 and 8 is based on the AND truth table below. What is the correct output labeled with A?

Fill in the Blanks

What is the correct answer for the output labeled with B?

Fill in the Blanks

Question 9 and 10 is based on the EXOR truth table below. What is the correct output for A?

Fill in the Blanks

What is the correct output for B?