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MC74VHCT244AM Просмотр технического описания (PDF) - ON Semiconductor
Номер в каталоге
Компоненты Описание
производитель
MC74VHCT244AM
Octal Bus Buffer/Line Driver with 3-State Outputs
ON Semiconductor
MC74VHCT244AM Datasheet PDF : 8 Pages
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MC74VHCT244A
A or B
t
PLH
YA or YB
1.5V
1.5V
3V
GND
t
PHL
V
OH
V
OL
Figure 3. Switching Waveform
OEA or OEB
YA or YB
YA or YB
1.5V
t
PZL
t
PLZ
1.5V
t
PZH
t
PHZ
1.5V
3V
GND
HIGH
IMPEDANCE
V
OL
+0.3V
V
OH
-0.3V
HIGH
IMPEDANCE
Figure 4. Switching Waveform
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
C
L
*
*Includes all probe and jig capacitance
Figure 5. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 k
Ω
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 6. Test Circuit
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