Function Table (Each Flip-Flop)
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
|
Q
0
|
(1) This configuration is nonstable; that is, it does not
persist when PRE or
CLR returns to its
inactive (high) level.