2003 Nov 17

9

Philips Semiconductors

Product specification

Octal transceiver with direction pin, 30

Ω series

termination resistors; 5 V tolerant input/output; 3-state

74LVC2245A

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

propagation delay An to Bn; Bn to An

see Figs 5 and 7 1.2

−

26

−

ns

2.7

1.5

4.0

7.3

ns

3.0 to 3.6 1.5

6.3

ns

3-state output enable time

OE to An; OE to Bn

see Figs 6 and 7 1.2

−

28

−

ns

2.7

1.5

5.9

9.5

ns

3.0 to 3.6 1.5

8.2

ns

3-state output disable time

OE to An; OE to Bn

see Figs 6 and 7 1.2

−

12.0

−

ns

2.7

1.5

3.8

6.9

ns

3.0 to 3.6 1.7

5.9

ns

skew

note 2

−−

1.0

ns

propagation delay nAn to nYn

see Figs 5 and 7 1.2

−

13

−

ns

2.7

1.5

4.5

9.5

ns

3.0 to 3.6 1.5

8.0

ns

3-state output enable time nOE to nYn

see Figs 6 and 7 1.2

−

20

−

ns

2.7

1.5

5.9

12.0

ns

3.0 to 3.6 1.5

10.5

ns

3-state output disable time nOE to nYn see Figs 6 and 7 1.2

−

10

−

ns

2.7

1.5

3.8

9.0

ns

3.0 to 3.6 1.7

7.5

ns

skew

note 2

−−

1.5

ns