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HD74BC623A Datasheet, PDF (7/9 Pages) Hitachi Semiconductor – Octal Bus Transceivers With 3 State Outputs | |||
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Waveforms-2
HD74BC623A
GAB
Waveform â A
Waveform â B
Waveforms-3
tr
90 %
1.5 V
10 %
tZL
tf
90 %
1.5 V
10 %
tLZ
1.5 V
tZH
tHZ
1.5 V
VOL + 0.3 V
VOH â 0.3 V
3V
0V
3.5 V
VOL
VOH
0V
GBA
tf
90 %
1.5 V
10 %
Waveform â A
Waveform â B
tZL
1.5 V
tZH
1.5 V
tr
90 %
1.5 V
10 %
tLZ
tHZ
VOL + 0.3 V
VOH â 0.3 V
3V
0V
3.5 V
VOL
VOH
0V
Notes: 1. tr = 2.5 ns, tf = 2.5 ns
2. Input waveforms: PRR = 1 MHz, duty cycle 50%
3. Waveform-A shows input conditions such that the output is âLâ level when enable by the output
control.
4. Waveform-B shows input conditions such that the output is âHâ level when enable by the output
control.
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