MC74HC4094A
www.onsemi.com
9
AC WAVEFORMS
Figure 7. Waveforms showing the clock
(CP) to output (QPn, QS1, QS2) propagation
delays, the clock pulse width and the
maximum clock frequency.
Figure 8. Waveforms showing the strobe
(STR) to output (QPn) propagation delays,
the strobe pulse width, the clock set−up
and hold times for the strobe input.
Figure 9. Waveforms showing the 3−state
enable and disable times for input OE.
Figure 10. Waveforms showing the data
set−up and hold times for the data input.
The shaded areas indicate when
the input is permitted to change for
predictable output performance.
t
PLH
t
PHL
t
w
1/f
MAX
t
TLH
t
THL
CP Input
QP
n, QS1
Output
QS
2 Output
50%
t
PLH
50%
t
PHL
t
THL
t
TLH
t
PHL
CP Input
QP
n Output
t
su
t
h
t
PLH
t
W
STR Input
t
f
t
r
90%
t
PZL
10%
Outputs
Enabled
Outputs
Enabled
t
PZH
t
PLZ
t
PHZ
OE Input
QP
n Output:
Low − to − Off
Off − to − Low
QP
n Output:
High − to − Off
Off − to − High
Outputs
Disabled
10%
90%
t
su
t
h
CP Input
D Input
QP
n, QS1, QS2
Output
t
su
t
h
50%
50%
50%
50%
50%
50%
50%
50%
50%
50%