Electronics/Basic gates

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Contents 1 Overview 2 Basic Gates 2.1 AND Gate 2.2 OR Gate 2.3 NOT Gate 2.4 NAND Gate 2.5 NOR Gate 2.6 XOR gate

[edit] Overview

There are six different basic gates used in performing logic operations:
AND, OR, NOT, NAND, NOR, and XOR gates

[edit] Basic Gates

[edit] AND Gate

When both inputs are high then the output will be high; otherwise the output will be low

AND gate

A	B	A.B
0	0	0
0	1	0
1	0	0
1	1	1

[edit] OR Gate

When either input is high then the output will be high; otherwise the output will be low

OR gate

A	B	A+B
0	0	0
0	1	1
1	0	1
1	1	1

[edit] NOT Gate

When the input is high, the output will be low; when the input is low, the output will be high

NOT gate

NOT

A	A'
0	1
1	0

[edit] NAND Gate

When both inputs are high then the output will be low; otherwise the output will be high

NAND gate

A	B	Q
0	0	1
0	1	1
1	0	1
1	1	0

[edit] NOR Gate

When both inputs are low, the output will be high; otherwise the output will be low

NOR gate

NOR

A	B	Q
0	0	1
0	1	0
1	0	0
1	1	0

[edit] XOR gate

When one input are high and one is low, the output will be high; otherwise the output will be low

XOR gate

XOR

A	B	Q
0	0	0
0	1	1
1	0	1
1	1	0