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| HD74LV240A Datasheet, PDF (9/14 Pages) Hitachi Semiconductor – Octal Buffers / Drivers with 3-state Outputs | |||
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Test Circuit
VCC
Input
Pulse generator
Zout = 50 â¦
HD74LV240A
VCC
1OE, 2OE
Output
1Y1 to 2Y4
1A1 to 2A4
1 k⦠S1
CL *
OPEN
GND
VCC
TEST
tPLH /tPHL
tZH/t HZ
tZL /t LZ
S1
OPEN
GND
VCC
Note: CL includes the probe and jig capacitance.
9
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