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HD74LVC2244A Datasheet, PDF (9/14 Pages) Hitachi Semiconductor – Octal Buffers / Line Drivers with 3-state Outputs
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(VCC = 1.8±0.15 V, VCC = 2.5±0.2 V)
• Waveforms – 1
tr
Input A
10 %
90 %
50% VCC
tPLH
Output Y
HD74LVC2244A
tf
90 %
50% VCC
10 %
tPHL
50% VCC
50% VCC
VCC
GND
VOH
VOL
• Waveforms – 2
tf
90 %
Input G
50% VCC
10 %
tZL
Waveform – A
Waveform – B
50% VCC
tZH
50% VCC
tr
10 %
90 %
50% VCC
tLZ
VOL + 0.15 V
tHZ
VOH – 0.15 V
VCC
GND
≈VCC
VOL
VOH
≈GND
Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, tr = 2.0 ns, tf = 2.0 ns
2. Waveform – A shows input conditions such that the output is “L” level
when enabled by the output control.
3. Waveform – B shows input conditions such that the output is “H” level
when enabled by the output control.
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