1:4 Demultiplexer Using IC 74LS139

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Preview of 1:4 Demultiplexer Using IC 74LS139 with 74LS04 and 74LS139 ICs
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Tutorial

Start by tapping on Next button.

1. Click on 'Next' button to Add IC-74LS139

Click on 'Next' button to Add IC-74LS139

2. Click on 'Next' button to Connect GND and VCC of IC

Click on 'Next' button to Connect GND and VCC of IC

3. Click on 'Next' button to Connect 'G' to GND

Click on 'Next' button to Connect 'G' to GND

4. Click on 'Next' button to Connect select line 'A1' to Pin-2

Click on 'Next' button to Connect select line 'A1' to Pin-2

5. Click on 'Next' button to Connect select line 'B1' to Pin-3

Click on 'Next' button to Connect select line 'B1' to Pin-3

6. Click on 'Next' button to Add IC-74LS139

Click on 'Next' button to Add IC-74LS139

7. Click on 'Next' button to Connect GND and VCC of IC

Click on 'Next' button to Connect GND and VCC of IC

8. Click on 'Next' button to Connect Pin-4 to Output port as 'Y0'

Click on 'Next' button to Connect Pin-4 to Output port as 'Y0'

9. Click on 'Next' button to Connect Pin-5 to Output port as 'Y1'

Click on 'Next' button to Connect Pin-5 to Output port as 'Y1'

10. Click on 'Next' button to Connect Pin-6 to Output port as 'Y2'

Click on 'Next' button to Connect Pin-6 to Output port as 'Y2'

11. Click on 'Next' button to Connect Pin-7 to Output port as 'Y3'

Click on 'Next' button to Connect Pin-7 to Output port as 'Y3'

Done

You have completed the tutorial. Power on the circuit to test the behavior.

Step-by-Step Procedure

  1. Click on 'Next' button to Add IC-74LS139
  2. Click on 'Next' button to Connect GND and VCC of IC
  3. Click on 'Next' button to Connect 'G' to GND
  4. Click on 'Next' button to Connect select line 'A1' to Pin-2
  5. Click on 'Next' button to Connect select line 'B1' to Pin-3
  6. Click on 'Next' button to Add IC-74LS139
  7. Click on 'Next' button to Connect GND and VCC of IC
  8. Click on 'Next' button to Connect Pin-4 to Output port as 'Y0'
  9. Click on 'Next' button to Connect Pin-5 to Output port as 'Y1'
  10. Click on 'Next' button to Connect Pin-6 to Output port as 'Y2'
  11. Click on 'Next' button to Connect Pin-7 to Output port as 'Y3'

Block Diagram

Block diagram representing pin diagram of 1:4 Demultiplexer Using IC 74LS139 with 74LS04 and 74LS139 ICs

ICs used in this circuit with pin diagram



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