• Theory:-

> An 8×1 MUX is a combinational circuit that selects one out of eight inputs and forwards it to a single output line based on 3 select lines. 

     > Selection Mechanism:

         The binary combination of select lines determines which data input is connected to the output:

• • • 1. 000 → Y = D0
         
         

      2. 001 → Y = D1
         
         

      3. 010 → Y = D2
         
         

      4. 011 → Y = D3
         
         

      5. 100 → Y = D4
         
         

      6. 101 → Y = D5
         
         

      7. 110 → Y = D6
         
         

      8. 111 → Y = D7

BLOCK DIAGRAM:

TRUTH TABLE: