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#### Get Instant Assignment Help # Flip Flop Sample Assignment

## A. List of Components and Equipment and DataSheet

1. AND Gate

2. XOR Gate

3. Probe

4. Vcc

5. Ground

6. Clock Pulse

7. D-Flip Flop

8. 7 Segment Display

9. IC 7447N Figure II‑1: IC 7447 Connection Diagram Figure II‑2 Electrical Characteristics Figure II‑3 Internal Circuit

## B. Design

S1 > S3 > S6 > S0

Excitation Table for D Flip Flop

 Qn Qn+1 Dn 0 0 0 0 1 1 1 0 0 1 1 1

State Table

 Present State Next State Q2 Q1 Q0 Q2 Q1 Q0 D2 D1 D0 S1 0 0 1 0 1 1 0 1 1 S3 0 1 1 1 1 0 1 1 0 S6 1 1 0 0 0 0 0 0 0 S0 0 0 0 0 0 1 0 0 1

K- Map

D2

 Q0\Q2Q1 00 01 11 10 0 0 X 0 X 1 0 1 X X

D2= Q2’Q1

D1

 Q0\Q2Q1 00 01 11 10 0 0 X 0 X 1 1 1 X X

D1 = Q0

D0

 Q0\Q2Q1 00 01 11 10 0 1 X 0 X 1 1 0 X X

D0 = Q1’ Figure II‑4 Circuit Diagram

## C. Results:

The given circuit generates a series as specified with each clock pulse. Figure II‑5 Output 1 Figure II‑6 Output 2 Figure II‑7 Output 3 Figure II‑8 Output 4

## D. Constraints:

The speed with which the numbers refresh depends on clock pulse frequency and can be modified only by changing the clock pulse frequency.

## E. Discussion and Conclusion:

Synchronous counters run on triggering by clock pulse. Manual intervention or externa input is not required.

The next value coming out of the flip-flop is achieved by changing D value of the flip-flop.

The output matches with the theoretical calculations.

## A. List of Components and Equipment and DataSheet

1. AND Gate

2. OR Gate

3. Probe

4. Vcc

5. Ground

6. Clock Pulse

7. JK-Flip Flop

8. 7 Segment Display

9. IC 7447N Figure III‑1 IC7447 Connection Diagram Figure III‑2 Electrical Characteristics Figure III‑3 Logic Diagram

## B. Design

S1 > S3 > S8 > S6 > S13 > S10 > S0

Excitation Table for J-K Flip Flop

 Qn Qn+1 Jn Kn 0 0 0 X 0 1 1 X 1 0 X 1 1 1 X 0

State Table

 Present State Next State Q3 Q2 Q1 Q0 Q3 Q2 Q1 Q0 J3 K3 J2 K2 J1 K1 J0 K0 S1 0 0 0 1 0 0 1 1 0 X 0 X 1 X X 0 S3 0 0 1 1 1 0 0 0 1 X 0 X X 1 X 1 S8 1 0 0 0 0 1 1 0 X 1 1 X 1 X 0 X S6 0 1 1 0 1 1 0 1 1 X X 0 X 1 1 X S13 1 1 0 1 1 0 1 0 X 0 X 1 1 X X 1 S10 1 0 1 0 0 0 0 0 X 1 0 X X 1 0 X S0 0 0 0 0 0 0 0 1 0 X 0 X 0 X 1 X

K-Map

J3

 Q3Q2\Q1Q0 00 01 11 10 00 0 0 1 X 01 X X X 1 11 X X X X 10 X X X X

J3 = Q1

K3

 Q3Q2\Q1Q0 00 01 11 10 00 X X X X 01 X X X X 11 X 0 X X 10 1 X X 1

K3 = Q2’

J2

 Q3Q2\Q1Q0 00 01 11 10 00 0 0 0 X 01 X X X X 11 X X X X 10 1 X X 0

J2= Q3Q1’

K2

 Q3Q2\Q1Q0 00 01 11 10 00 X X X X 01 X X X 0 11 X 1 X X 10 X X X X

K2 = Q1’

J1

 Q3Q2\Q1Q0 00 01 11 10 00 0 1 X X 01 X X X X 11 X 1 X X 10 1 X X X

J1 = Q0+Q3

K1

 Q3Q2\Q1Q0 00 01 11 10 00 X X 1 X 01 X X X 1 11 X X X X 10 X X X 1

K1= 1

J0

 Q3Q2\Q1Q0 00 01 11 10 00 1 X X X 01 X X X 1 11 X X X X 10 0 X X 0

J0 = Q3’

K0

 Q3Q2\Q1Q0 00 01 11 10 00 X 0 1 X 01 X X X X 11 X 1 X X 10 X X X X

J0= Q2+Q1 Figure III‑4 Circuit Diagram

## C. Result Figure III‑5 Output 1

Figure III‑6 Output 2 Figure III‑7 Output 3 Figure III‑8 Output 4 Figure III‑9 Output 5 Figure III‑10 Output 6 Figure III‑11 Output 7 Figure III‑12 Output 8

## D. Constraints:

The speed with which the numbers refresh depends on clock pulse frequency and can be modified only by changing the clock pulse frequency.

For some cases some unwanted text appears because the IC 7447 is not made for values above 9.

## E. Discussion and Conclusion:

Synchronous counters run on triggering by clock pulse. Manual intervention or externa input is not required.

The next value coming out of the flip-flop is achieved by changing J and K value of the flip-flop.

The output matches with the theoretical calculations when the numbers range 0-9. But since IC7447 is meant only for BCD values, for two-digit values it does not show correct value. However, we can see that the flip flops work correct and the output is seen in LEDs.

## III. References

Dflipflop . (n.d.). Retrieved from hyperphysics: http://hyperphysics.phy-astr.gsu.edu/hbase/Electronic/Dflipflop.html

d-flip-flops . (n.d.). Retrieved from circuitdigest: https://circuitdigest.com/electronic-circuits/d-flip-flops

jkflipflop . (n.d.). Retrieved from hyperphysics: http://hyperphysics.phy-astr.gsu.edu/hbase/Electronic/jkflipflop.html

sequential . (n.d.). Retrieved from electronics: https://www.electronics-tutorials.ws/sequential/seq_2.html

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