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MC74HC589A(2000) 데이터 시트보기 (PDF) - ON Semiconductor
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MC74HC589A
(Rev.:2000)
8-Bit Serial or Parallel-Input/Serial-Output Shift Register with 3-State Output
ON Semiconductor
MC74HC589A Datasheet PDF : 12 Pages
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MC74HC589A
SWITCHING WAVEFORMS
tr
tf
LATCH CLOCK
90%
50%
10%
tw
VCC
1/fmax
tw
GND
SHIFT CLOCK
50%
VCC
GND
tPLH
tPHL
QH
90%
50%
10%
tTLH
tTHL
tPLH
tPHL
QH 50%
Figure 1. (Serial Shift/Parallel Load = L)
Figure 2. (Serial Shift/Parallel Load = H)
OUTPUT
ENABLE
QH
QH
50%
tPZL tPLZ
50%
tPZH tPHZ
50%
VCC
GND
HIGH
IMPEDANCE
10% VOL
90% VOH
HIGH
IMPEDANCE
SERIAL SHIFT/
PARALLEL LOAD
QH
tw
50%
tPLH
50%
VCC
50%
GND
tPHL
Figure 3.
Figure 4.
A–H
LATCH CLOCK
DATA VALID
50%
tsu
th
50%
Figure 5.
SERIAL SHIFT/
PARALLEL LOAD
SHIFT CLOCK
50%
tsu
50%
Figure 7.
DATA VALID
VCC
VCC
SA
50%
GND
GND
tsu
th
SHIFT CLOCK
50%
Figure 6.
TEST POINT
VCC
OUTPUT
DEVICE
GND
UNDER
TEST
CL*
http://onsemi.com
6
*Includes all probe and jig capacitance
Figure 8. Test Circuit
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