2003 May 07

9

Philips Semiconductors

Product specification

Octal bus transceiver with direction pin with 5 V tolerant

input/outputs (3-state)

74LVC245A;

74LVCH245A

AC CHARACTERISTICS

Notes

2. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed

by design.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN.

TYP.

MAX.

UNIT

WAVEFORMS

see Figs 5 and 7 1.2

−

17

−

ns

2.7

1.5

3.4

7.3

ns

3.0 to 3.6

1.5

6.3

ns

3-state output enable time

see Figs 6 and 7 1.2

−

22

−

ns

2.7

1.5

5.0

9.5

ns

3.0 to 3.6

1.5

8.5

ns

3-state output disable time

see Figs 6 and 7 1.2

−

12

−

ns

2.7

1.5

3.6

8.0

ns

3.0 to 3.6

1.7

7.0

ns

skew

note 2

−−

1.0

ns

see Figs 5 and 7 1.2

−−−

ns

2.7

1.5

−

9.5

ns

3.0 to 3.6

1.5

−

8.0

ns

3-state output enable time

see Figs 6 and 7 1.2

−−−

ns

2.7

1.5

−

12.0

ns

3.0 to 3.6

1.5

−

11.0

ns

3-state output disable time

see Figs 6 and 7 1.2

−−−

ns

2.7

1.5

−

10.0

ns

3.0 to 3.6

1.7

−

9.0

ns

skew

note 2

−−

1.5

ns