HD74LV1G125A

REJ03D0071-0700 Rev.7.00, Mar 21, 2008

Page 6 of 7

Test Circuit

L

Note: 1. C includes probe and jig capacitance.

Output

C =

15 or 50 pF

L

OPEN

GND

S1

1 k

Ω

Input

TEST

S1

t

/ t

PLH

PHL

OPEN

GND

t

/ t

ZH

HZ

t

/ t

ZL

LZ

Pulse Generator

Z

= 50

OUT

Ω

Waveform

GND

50%

50%

50%

50%

50%

50%

50%

50%

Input A

Output Y

• Waveforms - 1

• Waveforms - 2

10 %

90 %

10 %

90 %

V

– 0.3 V

OH

V

+ 0.3 V

OL

Waveform - A

Input

OE

Waveform - B

GND

GND

10 %

10 %

90 %

90 %

Notes: 1. Input waveform : PRR

2. Waveform - A is for an output with internal conditions such that the output is low

except when disabled by the output control.

3. Waveform - 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.