4 bit Up/Down Counter using 74HC191

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Preview of 4 bit Up/Down Counter using 74HC191 with 74HC191 ICs
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Tutorial

Start by tapping on Next button.

1. Click on 'Next' button to Add IC-74HC191

Click on 'Next' button to Add IC-74HC191

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 Clock to Pin-14

Click on 'Next' button to Connect Clock to Pin-14

4. Click on 'Next' button to Connect U/D Control to Pin-5

Click on 'Next' button to Connect U/D Control to Pin-5

5. Click on 'Next' button to Connect Pin-4 to GND

Click on 'Next' button to Connect Pin-4 to GND

6. Click on 'Next' button to Connect Input 'Load' (Pin-11) Vcc

Click on 'Next' button to Connect Input 'Load' (Pin-11) Vcc

7. Click on 'Next' button to Connect Output 'Q0' to Output Port

Click on 'Next' button to Connect Output 'Q0' to Output Port

8. Click on 'Next' button to Connect Output 'Q1' to Output Port

Click on 'Next' button to Connect Output 'Q1' to Output Port

9. Click on 'Next' button to Connect Output 'Q2' to Output Port

Click on 'Next' button to Connect Output 'Q2' to Output Port

10. Click on 'Next' button to Connect Output 'Q3' to Output Port

Click on 'Next' button to Connect Output 'Q3' to Output Port

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-74HC191
  2. Click on 'Next' button to Connect GND and VCC of IC
  3. Click on 'Next' button to Connect Clock to Pin-14
  4. Click on 'Next' button to Connect U/D Control to Pin-5
  5. Click on 'Next' button to Connect Pin-4 to GND
  6. Click on 'Next' button to Connect Input 'Load' (Pin-11) Vcc
  7. Click on 'Next' button to Connect Output 'Q0' to Output Port
  8. Click on 'Next' button to Connect Output 'Q1' to Output Port
  9. Click on 'Next' button to Connect Output 'Q2' to Output Port
  10. Click on 'Next' button to Connect Output 'Q3' to Output Port

Block Diagram

Block diagram representing pin diagram of 4 bit Up/Down Counter using 74HC191 with 74HC191 ICs

ICs used in this circuit with pin diagram

Pin diagram of Synchronous 4-Bit Up/Down Counters with Mode Control - 74HC191

74HC191

Synchronous 4-Bit Up/Down Counters with Mode Control


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