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HD74LV540A Datasheet, PDF (10/14 Pages) Hitachi Semiconductor – Octal Inverted Buffers / Drivers with 3-state Outputs
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HD74LV540A
• Waveform
Input A
Output Y
tf
90%
50%VCC
10%
tPLH
tr
10%
90%
50%VCC
tPHL
50%VCC
50%VCC
VCC
GND
VOH
VOL
Input OE
tf
90%
50%VCC
10%
Waveform – A
tZL
50%VCC
tZH
tr
90%
50%VCC
10%
tLZ
tHZ
Waveform – B
50%VCC
VOL + 0.3 V
VOH – 0.3 V
VCC
GND
VCC
VOL
VOH
GND
Notes: 1. tr ≤ 3 ns, tf ≤ 3 ns
2. Input waveform: PRR ≤ 1 MHZ, duty cycle 50%
3. Waveform-A is for an output with internal conditions such that the output is low except
when disabled by the output control.
4. Waveform-B is for an output with internal conditions such that the output is high except
when disabled by the output control.
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