Digital Electronics/Logic Gates/Combinational Gates

Combination gates edit

More than one logic gates can be connected to produce new logic gates

Buffer edit

Basic Logic Gates Combinational Gates Symbol Mathmatical Formula Truth Table
Buffer       Y = is NOT NOT A
Y = A
A Q
0 0
1 1

NOT Gate edit

Digital Gate Combinational Gates Symbol Mathematical Expression Truth Table
NOT Gate       Y = is NOT A A Y
0 1
1 0

NAND Gate edit

Digital Gate Combinational Gate Symbol Mathematical Expression Truth Table
Buffer       Y = is NOT A.B A B Y
0 0 1
0 1 1
1 0 1
1 1 0

NOR Gate edit

Digital Gate Combinational Gate Symbol Mathematical Expression Truth Table
NOT       Y = is NOT A+B A B Y
0 0 1
0 1 0
1 0 0
1 1 0

XNOR Gate edit

Basic Gates Combinational Gate Symbol Mathematical Formula Truth Table
NOT Gate       Y = is NOT AxorB A B Q
0 0 1
0 1 0
1 0 0
1 1 1