HD74LVC540A

Rev.4.00 Jul. 28, 2004 page 5 of 6

Waveforms – 1

Input A

10 %

GND

90 %

10 %

90 %

Output Y

Notes:

1.

2.

Input waveform : PRR = 10 MHz, duty cycle 50%

Waveforms – 2

V

– 0.3 V

OH

V

+ 0.3 V

OL

90 %

10 %

90 %

10 %

GND

Input G

Waveform - A

Waveform - B

≈V

OL1

≈V

OH1

TEST

1.5 V

3 V

GND

50%Vcc

2.7 V

Vcc

Vcc

GND

Vcc=2.7V,

3.3±0.3V

Vcc=5.0±0.5V

Notes:

1.

2.

Input waveform : PRR = 10 MHz, duty cycle 50%

3.

Waveform – A shows input conditions such that the output is "L" level when enable by the

output control.

4.

Waveform – B shows input conditions such that the output is "H" level when enable by the

output control.