Interconnected Gates

Interconnected Gates

The diagram above shows that the output of an AND gate can be the input for a NOT gate. The circuit above can also be represented with gate symbols as below.

Interconnected Gates with Symbols

Interconnected Gates with Symbols

A 'NAND gate' can be constructed from an AND gate followed by a NOT gate as indicated below.

Constructed NAND Gate

Constructed NAND Gate

A NAND gate can be represented by the single symbol in the circuit below.

NAND Gate Circuit

NAND Gate Circuit

A lone NAND gate is pictured below.

NAND Gate

NAND Gate

The truth table for the NAND gate is shown below.

                        NAND gate truth table
                          A       B       C
                          0       0       1
                          0       1       1
                          1       0       1
                          1       1       0


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