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Número de pieza
componentes Descripción
Lista de partido
MC74HCT574ADTR2
Octal 3−State Noninverting D Flip−Flop with LSTTL−Compatible Inputs
ON Semiconductor
MC74HCT574ADTR2 Datasheet PDF : 7 Pages
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t
r
CLOCK
Q
2.7 V
1.3 V
0.3 V
t
w
90%
1.3 V
10%
1/f
max
t
PLH
t
TLH
t
f
t
PHL
t
THL
Figure 3.
MC74HCT574A
SWITCHING WAVEFORMS
3.0 V
GND
OUTPUT
ENABLE
Q
Q
1.3 V
t
PZL
t
PLZ
1.3 V
t
PZH
t
PHZ
1.3 V
Figure 4.
3.0 V
GND
HIGH
IMPEDANCE
10% V
OL
90% V
OH
HIGH
IMPEDANCE
VALID
3.0 V
1.3 V
DATA
GND
t
su
t
h
3.0 V
CLOCK
1.3 V
GND
Figure 5.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
C
L
*
*Includes all probe and jig capacitance
Figure 6. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 k
W
C
L
*
CONNECT TO V
CC
WHEN
TESTING t
PLZ
AND t
PZL
.
CONNECT TO GND WHEN
TESTING t
PHZ
AND t
PZH
.
*Includes all probe and jig capacitance
Figure 7. Test Circuit
http://onsemi.com
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