HD74LV157A

Rev.2.00 Jun. 03, 2004 page 6 of 8

Noise Characteristics

Ta = 25°C

Item

Symbol

Min

Typ

Max

Unit

Test Conditions

Quiet output, maximum

3.3

—

0.3

0.8

V

Quiet output, minimum

3.3

—

–0.2

–0.8

V

Quiet output, minimum

3.3

—

3.0

—

V

High-level dynamic input

voltage

3.3

2.31

——V

Low-level dynamic input

voltage

3.3

——0.99

V

Test Circuit

L

*

Note: C includes the probe and jig capacitance.

Measurement point

C

L

0 V

10%

90%

CC

50% V

CC

50% V

CC

50% V

CC

50% V

CC

50% V

CC

50% V

10%

90%

Input

In phase output

Out of phase output

• Waveform

r

f

1. Input waveform: PRR

≤ 1 MHz, Zo = 50 Ω, t ≤ 3 ns, t ≤ 3 ns

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

Notes: