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HD74LV138A Datasheet, PDF (9/13 Pages) Hitachi Semiconductor – 3-to-8 line Decoder / Demultiplexers
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Test Circuit
HD74LV138A
Measurement point
CL*
Note: CL includes the probe and jig capacitance.
• Waveform
Input
tr
10%
90%
50% VCC
tPLH
tf
90%
50% VCC
10%
tPHL
In phase output
tPHL
50% VCC
50% VCC
tPLH
Out of phase output
50% VCC
50% VCC
VCC
0V
VOH
VOL
VOH
VOL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns
2. The output is measured one at a time with one transition per measurement.
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