HD74HCT237RPEL データシートの表示（PDF） - Renesas Electronics
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HD74HCT237RPEL Datasheet PDF : 8 Pages
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HD74HCT237
Waveforms
• Waveform – 1
6 ns
6 ns
Input
A,B,C
90%
10%
90%
1.3 V
10%
tW
90% 90%
1.3 V
10% 10%
tW
tPLH
tPHL
Output Y
10%
90%
1.3 V
90%
1.3 V
10%
tTLH
tTHL
1.3 V
VCC
0V
VOH
VOL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
• Waveform – 2
6 ns
G2
90%
1.3 V
10%
6 ns
10%
90%
1.3 V
Output Y
tPLH
1.3 V
10%
90%
tTLH
tPHL
90%
1.3 V
10%
tTHL
VCC
0V
VOH
VOL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
• Waveform – 3
6 ns
G1
90%
1.3 V
10%
6 ns
90%
1.3 V
10%
Output Y
tPLH
1.3 V
10%
90%
tTLH
tPHL
90%
1.3 V
10%
tTHL
VCC
0V
VOH
VOL
Notes: 1. Input waveform: PRR ≤ 1 MHz, Zo = 50 Ω, tr ≤ 6 ns, tf ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 5 of 7
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