Flipflops to be considered are:
- SR Flipflop
- JK Flipflop
- D Flipflop
- T Flipflop
SR Flipflop
| S | R | Q(t+1) |
| 0 | 0 | Q(t) |
| 0 | 1 | 0 |
| 1 | 0 | 1 |
| 1 | 1 | Invalid inputs |
Characteristic Equation
Q(t+1) = R'(t)Q(t) + S(t) ; S(t)R(t) = 0
Excitation Table
| Q(t) | Q(t+1) | S | R |
| 0 | 0 | 0 | x |
| 0 | 1 | 1 | 0 |
| 1 | 0 | 0 | 1 |
| 1 | 1 | x | 0 |
JK Flipflop
Truth Table
| J | K | Q(t+1) |
| 0 | 0 | Q(t) |
| 0 | 1 | 0 |
| 1 | 0 | 1 |
| 1 | 1 | Q'(t) |
Characteristic Equation
Q(t+1) = K'(t)Q(t) + J(t)Q'(t)
Excitation Table
| Q(t) | Q(t+1) | J | K |
| 0 | 0 | 0 | x |
| 0 | 1 | 1 | x |
| 1 | 0 | x | 1 |
| 1 | 1 | x | 0 |
D Flipflop
Truth Table
| D | Q(t+1) |
| 0 | 0 |
| 1 | 1 |
Characteristic Equation
Q(t+1) = D(t)
Excitation Table
| Q(t) | Q(t+1) | D |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
T Flipflop
Truth Table
| T | Q(t+1) |
| 0 | Q(t) |
| 1 | Q'(t) |
Characteristic Equation
Q(t+1) = T'(t)Q(t) + T(t)Q'(t) = T(t) ⊕ Q(t)
Excitation Table
| Q(t) | Q(t+1) | T |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
Useful notes thank u provide more
Thank you
Plz provide characteristic table also
Characteristics table is the same as the truth table.
usefull but i think you should mention that which gate you use to get these values ,NAND or NOR. it will make it more helpful.
They used nand gates.
Thank you so much
Simple process and use full notes
Most welcome
thanks a lot it helped me a lot you saved me a lot
Most welcome
Tq u..
Welcome