2003 Jul 10

7

Philips Semiconductors

Product specification

Octal bus transceiver; 3-state

74ALVC245

AC CHARACTERISTICS

Note

AC WAVEFORMS

SYMBOL

PARAMETER

TEST CONDITIONS

MIN.

MAX.

UNIT

WAVEFORMS

propagation delay

An to Bn; Bn to An

see Figs 4 and 6

1.65 to 1.95

1.0

2.7

6.0

ns

2.3 to 2.7

1.0

2.1

3.5

ns

2.7

1.0

3.0

3.6

ns

3.0 to 3.6

1.0

2.3

3.4

ns

3-state output enable time

OE to An; OE to Bn

see Figs 5 and 6

1.65 to 1.95

1.0

4.0

8.6

ns

2.3 to 2.7

1.0

3.0

6.0

ns

2.7

1.0

2.6

6.3

ns

3.0 to 3.6

1.0

2.9

5.5

ns

3-state output disable time

OE to An; OE to Bn

see Figs 5 and 6

1.65 to 1.95

1.0

4.4

8.0

ns

2.3 to 2.7

1.0

2.3

4.8

ns

2.7

1.0

3.3

5.3

ns

3.0 to 3.6

1.0

3.2

5.5

ns

handbook, halfpage

MNA176

An, Bn input

Bn, An output

tPLH

tPHL

GND

VI

VM

VM

VM

VM

VOH

VOL

Fig.4 Input (An, Bn) to output (Bn, An) propagation delay times.

INPUT

1.65 to 1.95 V

0.5

≤ 2.0 ns

2.3 to 2.7 V

0.5

× V

CC

≤ 2.0 ns

2.7 V

1.5 V

2.7 V

≤ 2.5 ns

3.0 to 3.6 V

1.5 V

2.7 V

≤ 2.5 ns