14.8.131 DFE2D
This component is supported by ACT 1, MX families.
- Function: D-Type Flip-Flop with active high Preset, active low Enable, Clear, and Clock
- Input: CLR, D, E, PRE, CLK
- Output: Q
| CLR | PRE | E | CLK | Qn+1 |
|---|---|---|---|---|
| 0 | 0 | X | X | 0 |
| 1 | 1 | X | X | 1 |
| 1 | 0 | 1 | X | Q |
| 1 | 0 | 0 | ↓ | D |
| 0 | 1 | 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.