
D
50%
tPLH
O
50% VCC
Figure 3.
MC74LVX125
SWITCHING WAVEFORMS
VCC
GND
tPHL
OE
50%
tPZL
tPLZ
O
50% VCC
tPZH
tPHZ
O
50% VCC
Figure 4.
VCC
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH -0.3V
HIGH
IMPEDANCE
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
TEST CIRCUITS
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kΩ
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 5. Propagation Delay Test Circuit
*Includes all probe and jig capacitance
Figure 6. Three–State Test Circuit
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