8.4 Device Functional Modes
Table 1 lists the functional modes of the SN74HCS72-Q1.
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 |
H |
H |
H |
X |
Q0 |
Q0 |
(1) This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level.