Analysis and Synthesis of Logic Functions using Dual 4:1 Multiplexer(IC 74153)

INSTRUCTION

  1. Apply VCC and low level voltage to ground(GND)
  2. Apply high level voltage to Strobe1G or strobe 2G. If STROBE 1G is high 2nd Multiplexer is activated . If STROBE 2G is high then 1st Multiplexer is activated.
  3. For all the combinations of the select inputs A,B verify that both the LEDs are ON or not.
  4. Follow the truth table in the below section.
  5. Note: Red button symbolize as Low (L), Green button symbolize as High(H).

TRUTH TABLE

Multiplxer 1 is active Multiplxer 2 is active
Strobe Select Lines Output Strobe Select Lines Output
1G 2G A B 1Y 1G 2G A B 2Y
1 1 x x 0 1 1 x x 0
0 1 0 0 1C0 1 0 0 0 2C0
0 1 0 1 1C1 1 0 0 1 2C1
0 1 1 0 1C2 1 0 1 0 2C2
0 1 1 1 1C3 1 0 1 1 2C3

CIRCUIT DIAGRAM

circuit image