HD74LVC1G08

Rev.3.00 Jun. 30, 2004 page 6 of 8

Test Circuit

L

Note: C includes probe and jig capacitance.

C

L

Measurement point

*

From Output

90%

10%

GND

90%

Vref

Vref

Vref

Vref

10%

1.8±0.15

2.5±0.2

3.3±0.3

5.0±0.5

Vref

≤ 2 ns

≤ 2 ns

≤ 2.5 ns

≤ 2.5 ns

3 V

15 pF

1 M

Ω

1 M

Ω

1 M

Ω

1 M

Ω

15 pF

15 pF

15 pF

1.5 V

INPUTS

1.8±0.15

2.5±0.2

3.3±0.3

5.0±0.5

Vref

≤ 2 ns

≤ 2 ns

≤ 2.5 ns

≤ 2.5 ns

3 V

30 pF

1.0 k

Ω

500

Ω

500

Ω

500

Ω

30 pF

50 pF

50 pF

1.5 V

INPUTS

• Waveforms

Input

Output

Notes: 1. Input waveform: PRR

≤ 10 MHz, Zo = 50 Ω.

2. The output are measured one at a time with one transition per measurement.