NAND

image\block_nand1_sn.gif

The output of an NAND function is only 0 if all inputs are 1, i.e. when they are closed.

A block input that is not used (x) is assigned: x = 1.

NAND function logic table

 

Input 1

Input 2

Input 3

Input 4

Output

0

0

0

0

1

0

0

0

1

1

0

0

1

0

1

0

0

1

1

1

0

1

0

0

1

0

1

0

1

1

0

1

1

0

1

0

1

1

1

1

1

0

0

0

1

1

0

0

1

1

1

0

1

0

1

1

0

1

1

1

1

1

0

0

1

1

1

0

1

1

1

1

1

0

1

1

1

1

1

0

 

Overview