0 is selected when the integer value 0 is applied to the inputs.

Examples of this type of decoder include:
*A 3-to-8 line decoder activates one of eight output bits for each input value from 0 to 7 -- the range of integer values that can be expressed in three bits. Similarly, a 4-to-16 line decoder activates one of 16 outputs for each 4-bit input in the integer range [0,15].
*A BCD to decimal decoder has ten output bits. It accepts an input value consisting of a binary-coded decimal integer