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HD74HCT540_15 Datasheet, PDF (8/11 Pages) Renesas Technology Corp – HD74HCT540 | |||
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HD74HCT540, HD74HCT541
HD74HCT541
⢠Waveform â 1
Input A
tr
10 %
90 %
1.3 V
tPLH
tf
90 %
1.3 V
10 %
tPHL
Output Y
1.3 V
10 %
90 %
90 %
1.3 V
10 %
tTLH
tTHL
⢠Waveform â 2
tf
tr
Input G
90 %
1.3 V
10 %
tZL
10 %
90 %
1.3 V
tLZ
Waveform â A
Waveform â B
1.3 V
tZH
1.3 V
10 %
tHZ
90 %
VCC
0V
VOH
VOL
VCC
0V
VOH
VOL
VOH
VOL
Notes : 1. Input waveform : PRR ⤠1 MHz, duty cycle 50%, tr ⤠6 ns, tf ⤠6 ns
2. Waveformâ A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveformâ B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 6 of 8
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