74ALVC244 datasheet(8/15 Pages) PHILIPS

номер детали	74ALVC244

подробное описание детали	Octal buffer/line driver; 3-state

PDF	15 Pages

Scroll/Zoom	100%

производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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8 / 15 page

2003 Sep 08

Philips Semiconductors

Product speciﬁcation

Octal buffer/line driver; 3-state

74ALVC244

AC CHARACTERISTICS

Note

1. All typical values are measured at Tamb =25 °C.

AC WAVEFORMS

SYMBOL

PARAMETER

TEST CONDITIONS

MIN.

TYP.(1)

MAX.

UNIT

WAVEFORMS

VCC (V)

Tamb = −40 to +85 °C

tPHL/tPLH

propagation delay nAn to nYn

see Figs 6 and 8 1.65 to 1.95

1.0

2.7

4.4

2.3 to 2.7

1.0

2.0

3.1

2.7

1.0

2.3

3.1

3.0 to 3.6

1.0

2.2

2.8

tPZH/tPZL

3-state output enable time

nOE to nYn

see Figs 7 and 8 1.65 to 1.95

1.0

3.4

6.9

2.3 to 2.7

1.0

2.6

5.4

2.7

1.0

3.2

5.3

3.0 to 3.6

1.0

2.5

4.5

tPHZ/tPLZ

3-state output disable time

nOE to nYn

see Figs 7 and 8 1.65 to 1.95

1.0

3.8

5.9

2.3 to 2.7

1.0

2.2

4.1

2.7

1.0

3.0

4.4

3.0 to 3.6

1.0

2.9

4.2

handbook, halfpage

MNA171

nAn input

nYn output

tPLH

tPHL

GND

VOH

VOL

Fig.6 Input nAn to output nYn propagation delay times.

VCC

INPUT

tr =tf

1.65 to 1.95 V

0.5

× VCC VCC

≤ 2.0 ns

2.3 to 2.7 V

0.5

× VCC VCC

≤ 2.0 ns

2.7 V

1.5 V

2.7 V

≤ 2.5 ns

3.0 to 3.6 V

1.5 V

2.7 V

≤ 2.5 ns

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