MC74LVX257M 데이터 시트보기 (PDF) - ON Semiconductor
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MC74LVX257M Datasheet PDF : 8 Pages
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MC74LVX257
NOISE CHARACTERISTICS Input tr = tf = 3.0 ns, CL = 50 pF, VCC = 3.3 V
Symbol
VOLP
VOLV
VIHD
VILD
Characteristic
Quiet Output Maximum Dynamic VOL
Quiet Output Minimum Dynamic VOL
Minimum High Level Dynamic Input Voltage
Maximum Low Level Dynamic Input Voltage
TA = 25°C
Typ
Max
Unit
0.3
0.5
V
−0.3
−0.5
V
2.0
V
0.8
V
VCC
A, B or S
50%
GND
tPLH
tPHL
Y
50% VCC
Figure 4. Switching Waveform
OE
50%
tPZL
tPLZ
Y
50% VCC
tPZH
tPHZ
Y
50% VCC
VCC
GND
HIGH
IMPEDANCE
VOL + 0.3V
VOH − 0.3V
HIGH
IMPEDANCE
Figure 5. Switching Waveform
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 6. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
OUTPUT 1 kW
CL *
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 7. Test Circuit
INPUT
Figure 8. Input Equivalent Circuit
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