وان الکتریک

مدارات لاجيك

 

Introduction

 

 

Logic gate symbols

 

 

 

 

Inputs and outputs

Truth tables

 

 

 

NOT gate (inverter)

 

 

AND gate

 

 

NAND gate (NAND = Not AND)

 

 

OR gate

 

 

NOR gate (NOR = Not OR)

 

 

EX-OR (EXclusive-OR) gate

 

 

EX-NOR (EXclusive-NOR) gate

 

 

Summary truth tables

 

 

 

Combinations of logic gates

Input A	Input B	Output Q
0	0	0
0	1	0
1	0	1
1	1	0

 

 

 

 

 

 

 

 

Working out the function of a combination of gates

Inputs			Outputs
A	B	C	D	E	Q
0	0	0	1	0	1
0	0	1	1	0	1
0	1	0	0	0	0
0	1	1	0	1	1
1	0	0	0	0	0
1	0	1	0	0	0
1	1	0	0	0	0
1	1	1	0	1	1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Substituting one type of gate for another

 

 

 

NAND gate equivalents

 

 

 

 

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