MC74HC597A 데이터 시트보기 (PDF) - ON Semiconductor
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MC74HC597A
ON Semiconductor
MC74HC597A Datasheet PDF : 12 Pages
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MC74HC597A
SWITCHING WAVEFORMS
tw
tr
tf
90%
VCC
1/fmax
tw
VCC
LATCH CLOCK
50%
SHIFT CLOCK
50%
10%
GND
GND
tPLH
tPHL
QH
90%
50%
10%
tTLH
tTHL
Figure 3. (Serial Shift/Parallel Load = L)
RESET
tPHL
QH
tw
50%
50%
SHIFT CLOCK
VCC
GND
trec
Figure 5.
tPLH
tPHL
QH
50%
Figure 4. (Serial Shift/Parallel Load = H)
SERIAL SHIFT/
PARALLEL LOAD
QH
tw
50%
tPLH
50%
VCC
50%
GND
tPHL
Figure 6.
PARALLEL DATA
A/H
LATCH CLOCK
VALID
50%
tsu
th
50%
Figure 7.
SERIAL SHIFT/
PARALLEL LOAD
SHIFT CLOCK
50%
tsu
50%
Figure 9.
VCC
GND
VCC
GND
VCC
GND
VCC
GND
VALID
SERIAL DATA
VCC
INPUT SA
50%
GND
tsu
th
VCC
SHIFT CLOCK
50%
GND
Figure 8.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 10. Test Circuit
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