D flip-flop
A D flip-flop can be used to store a single bit. In this context it is also referred to as a latch. The D
stands for data
. The value at input D is saved precisely when input C=1 (clock) at the input. If C=0, the stored value is retained regardless of the input value D.
Truth table
| C | D | Q1 | Q2 |
|---|---|---|---|
| 0 | x | q1 | q2 |
| 1 | 0 | 0 | 1 |
| 1 | 1 | 1 | 0 |
Comments:
x = any (0 or 1) q = state of output Q remains unchanged
Adjustable parameters
| Designation | Range | Default value |
|---|---|---|
| Voltage level (lo) | 0.1 ... 24 V | 0.8 |
| Voltage level (hi) | 0.1 ... 24 V | 2 |
| Designation | Range | Default value |
|---|---|---|
| Voltage level (lo) | 0 ... 24 V | 0 |
| Voltage level (hi) | 0.1 ... 24 V | 5 |
| Resistance | 0.1 ... 1000 Ohm | 50 |