Table 1. Function Table
| INPUTS |
OUTPUTS |
| PRE |
CLR |
CLK |
D |
Q |
Q |
| L |
H |
X |
X |
H |
L |
| H |
L |
X |
X |
L |
H |
| L |
L |
X |
X |
H(1) |
H(1) |
| H |
H |
↑ |
H |
H |
L |
| H |
H |
↑ |
L |
L |
H |
| H |
H |
L |
X |
Q0 |
Q0 |
(1) This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level.