MC74HC4094A Datasheet, PDF (9/12 Pages) ON Semiconductor – 8-Bit Shift and Store Register

MC74HC4094A
AC WAVEFORMS
CP Input
QPn, QS1
Output
QS2 Output
1/f_MAX
50%
t_w
t_PLH
t_PHL
50%
t_TLH
t_THL
t_PLH
50%
t_TLH
t_THL
CP Input
STR Input
t_PHL
QPn Output
50%
t_su
t_h
50%
t_W
t_PLH
50%
t_PHL
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.
t_f
t_r
90%
OE Input
50%
10%
t_PLZ
QPn Output:
Low − to − Off
Off − to − Low
QPn Output:
High − to − Off
Off − to − High
t_PHZ
Outputs
Enabled
t_PZL
10%
90%
50%
t_PZH
50%
Outputs
Disabled
Outputs
Enabled
Figure 9. Waveforms showing the 3−state
enable and disable times for input OE.
CP Input
50%
D
t_su
ÉÉÉÉÉÉÉÉÉ _Input
50%^{ÉÉÉÉÉÉth ÉÉÉÉÉÉtsu ÉÉÉÉÉÉÉÉÉth ÉÉÉ}
QPn, QS1, QS2
Output
50%
The shaded areas indicate when
the input is permitted to change for
predictable output performance.
Figure 10. Waveforms showing the data
set−up and hold times for the data input.
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