SN74LVC2T45

DUALBIT DUALSUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS

SCES516E − DECEMBER 2003 − REVISED MAY 2004

7

POST OFFICE BOX 655303

switching

characteristics

over

recommended

operating

free-air

temperature

range,

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCCB = 1.8 V

± 0.15 V

VCCB = 2.5 V

± 0.2 V

VCCB = 3.3 V

± 0.3 V

VCCB = 5 V

± 0.5 V

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tPLH

A

B

2.1

15.5

1.4

8

0.7

5.8

0.7

4.4

ns

tPHL

A

B

2

12.6

1.3

7

0.8

5

0.7

4

ns

tPLH

B

A

1.7

8.3

1.3

6.4

0.7

5.8

0.6

5.4

ns

tPHL

B

A

1.8

7.1

1.3

5.4

0.8

5

0.7

4.5

ns

tPHZ

DIR

A

5

10.9

5.1

10.8

5

10.8

5

10.4

ns

tPLZ

DIR

A

3.4

8.4

3.7

8.4

3.9

8.1

3.3

7.8

ns

tPHZ

DIR

B

11.2

27.3

8

13.7

5.8

10.4

2.9

7.4

ns

tPLZ

DIR

B

9.4

17.7

5.6

11.3

4.3

8.3

1

5.6

ns

tPZH†

DIR

A

26

17.7

14.1

11

ns

tPZL†

DIR

A

34.4

19.1

15.4

11.9

ns

tPZH†

DIR

B

23.9

16.4

13.9

12.2

ns

tPZL†

DIR

B

23.5

17.8

15.8

14.4

ns

† The enable time is a calculated value, derived using the formula shown in the section entitled enable times on page 16.

switching

characteristics

over

recommended

operating

free-air

temperature

range,

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCCB = 1.8 V

± 0.15 V

VCCB = 2.5 V

± 0.2 V

VCCB = 3.3 V

± 0.3 V

VCCB = 5 V

± 0.5 V

UNIT

PARAMETER

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tPLH

A

B

1.9

15.1

1

7.5

0.6

5.4

0.5

3.9

ns

tPHL

A

B

1.8

12.2

0.9

6.2

0.7

4.5

0.5

3.5

ns

tPLH

B

A

1.4

7.2

1

5.1

0.7

4.4

0.5

3.9

ns

tPHL

B

A

1.7

7

0.9

4.6

0.7

4

0.5

3.5

ns

tPHZ

DIR

A

2.9

8.2

2.9

7.9

2.8

7.9

2.2

7.8

ns

tPLZ

DIR

A

1.4

6.9

1.3

6.7

0.7

6.7

0.7

6.6

ns

tPHZ

DIR

B

11.2

26.1

7.2

13.9

5.8

10.1

1.3

7.3

ns

tPLZ

DIR

B

8.4

16.9

5

11

4

7.7

1

5.6

ns

tPZH†

DIR

A

24.1

16.1

12.1

9.5

ns

tPZL†

DIR

A

33.1

18.5

14.1

10.8

ns

tPZH†

DIR

B

22

14.2

12.1

10.5

ns

tPZL†

DIR

B

20.4

14.1

12.4

11.3

ns

† The enable time is a calculated value, derived using the formula shown in the section entitled enable times on page 16.