14.8.271 JKF4B
This component is supported by ACT 1, MX families.
- Function: JK Flip-Flop with active high Preset, active low Clear, Clock and K-Input
- Input: CLR, J, K, PRE, CLK
- Output: Q
| CLR | PRE | J | K | CLK | Qn+1 |
|---|---|---|---|---|---|
| 0 | 0 | X | X | X | 0 |
| 1 | 1 | X | X | X | 1 |
| 1 | 0 | 0 | 0 | ↓ | 0 |
| 1 | 0 | 0 | 1 | ↓ | Q |
| 1 | 0 | 1 | 0 | ↓ | !Q |
| 1 | 0 | 1 | 1 | ↓ | 1 |
| 0 | 1 | X | X | X | * |
| Family | Seq | Comb |
|---|---|---|
| ACT 1/MX | — | 2 |
Note: * Your design should not allow both PRE and CLR to be asserted at the same time.