5.6 Switching Characteristics: VCCA = 1.8V ± 0.15V

over recommended operating free-air temperature range, VCCA = 1.8V ± 0.15V (unless otherwise noted) (see Figure 6-1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCCB = 1.8V

±0.15V

VCCB = 2.5V

±0.2V

VCCB = 3.3V

±0.3V

VCCB = 5V

±0.5V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tPLH

A

B

3

21.7

2.2

14.3

1.7

12.3

1.4

11.2

ns

tPHL

2.8

28.3

2.2

12.5

1.8

11.1

1.7

11

tPLH

B

A

3

21.7

2.3

20

2.1

19.5

1.9

19.1

ns

tPHL

2.8

18.3

2.1

16.9

2

16.6

1.8

16.2

tPHZ

DIR

A

5.5

34.9

5.5

34.5

5.5

34.5

5.5

33.3

ns

tPLZ

4.3

23.7

4.2

23.6

4.1

23.5

4

23.4

tPHZ

DIR

B

6

31.9

5

18.9

5

15.3

4.1

12.6

ns

tPLZ

5

23.5

3.9

16.6

4.3

13.7

2.1

11.1

tPZH (1)

DIR

A

45.2

36.6

33.2

30.2

ns

tPZL (1)

50.2

35.8

31.9

28.8

tPZH (1)

DIR

B

45.4

37.9

35.8

34.6

ns

tPZL (1)

53.2

47

45.6

44.3

(1)

The enable time is a calculated value, derived using the formula shown in the Enable Times section.

5.7 Switching Characteristics: VCCA = 2.5V ± 0.2V

over recommended operating free-air temperature range, VCCA = 2.5V ± 0.2V (unless otherwise noted) (see Figure 6-1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCCB = 1.8V

±0.15V

VCCB = 2.5V

±0.2V

VCCB = 3.3V

±0.3V

VCCB = 5V

±0.5V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

tPLH

A

B

2.3

20

1.5

12.5

1.3

10.4

1.1

9.1

ns

tPHL

2.1

16.9

1.4

11.5

1.3

9.4

0.9

8.6

tPLH

B

A

2.2

14.3

1.5

12.5

1.4

12

1

11.5

ns

tPHL

2.2

12.5

1.4

11.5

1.3

11

0.9

10.2

tPHZ

DIR

A

4.2

21.1

4.2

20.8

4.1

20.8

4.1

20.5

ns

tPLZ

3.2

16.6

3.2

16.5

3.2

16.3

3

16.3

tPHZ

DIR

B

6

31.9

4.7

17.9

4.7

14.5

3.5

11.6

ns

tPLZ

4.2

22.9

3.6

15.2

3.6

12.9

1.4

11.2

tPZH (1)

DIR

A

37.2

27.7

24.9

21.7

ns

tPZL (1)

44.4

29.4

25.5

21.8

tPZH (1)

DIR

B

28.6

29

26.7

25.4

ns

tPZL (1)

38

32.3

30.2

29.1

(1)

The enable time is a calculated value, derived using the formula shown in the Enable Times section.

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SN74LVC2T45-Q1

SCES818C – SEPTEMBER 2010 – REVISED JULY 2024

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