SN74AVC2T872_1 datasheet(9/18 Pages) TI

Il numero della parte	SN74AVC2T872

Spiegazioni elettronici	VOLTAGE-LEVEL SHIFTER FOR IC-USB INTERFACE

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Produttore elettronici	TI [Texas Instruments]

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SWITCHING CHARACTERISTICS

SN74AVC2T872

www.ti.com........................................................................................................................................................................................... SCES710 – NOVEMBER 2008

over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V, PD_EN = 0 V (unless otherwise noted)

VCCB = 1.2 V

VCCB = 1.5 V

VCCB = 1.8 V

VCCB = 2.5 V

VCCB = 3.3 V

FROM

TO

± 0.1 V

± 0.15 V

± 0.2 V

± 0.3 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tPLH

17

0.7

12.6

0.4

10.5

0.2

8.1

0.2

6.9

D+(A) to D+(B) or

ns

D–(A) to D–(B)

tPHL

17

0.7

11.2

0.4

9.5

0.2

7.4

0.2

6.7

Propagation

delay

tPLH

11

0.5

9.5

0.4

8.8

0.5

7.9

0.4

7.5

D+(B) to D+(A) or

ns

D–(B) to D–(A)

tPHL

11

0.5

9.3

0.4

8.7

0.5

7.9

0.4

7.6

tr

Output rise time

14

10

ns

tf

Output fall time

14

10

ns

tPHZ

13

1.1

11.4

1

10.8

0.5

9.8

0.5

9

DIR or

D+(A) or D–(A)

ns

DIR_POL

tPLZ

13

1.1

10.7

1

10.8

0.5

10.8

0.5

10.9

Disable time

tPHZ

21

1.1

10.7

1.3

10.6

0.8

9

0.5

9

DIR or

D+(B) or D–(B)

ns

DIR_POL

tPLZ

21

1.1

15.7

1.3

12.5

0.8

8.8

0.5

8.3

tPZH

32

25.2

21.3

16.7

15.8

DIR or

D+(A) or D–(A)

ns

DIR_POL

tPZL

32

20.1

19.2

16.9

16.6

Enable Time(1)

tPZH

30

23.3

21.3

18.9

17.7

DIR or

D+(B) or D–(B)

ns

DIR_POL

tPZL

30

22.7

20.3

17.2

15.8

Fmax

Max data rate

12

Mbps

(1)

The enable time is a calculated value derived using the formula shown in the enable times section.

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