74LVC2245ADB datasheet(9/17 Pages) PHILIPS

Part #	74LVC2245ADB

Description	Octal transceiver with direction pin; 30 ohm series termination resistors; 5 V input/output tolerant; 3-state

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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9 / 17 page

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

GND = 0 V; tr =tf ≤ 2.5 ns.

Notes

1. Typical values are measured at VCC = 3.3 V.

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

VCC (V)

Tamb = −40 to +85 °C

tPHL/tPLH

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

3.6(1)

6.3

ns

tPZH/tPZL

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

4.3(1)

8.2

ns

tPHZ/tPLZ

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

3.4(1)

5.9

ns

tsk(0)

skew

note 2

−−

1.0

ns

Tamb = −40 to +125 °C

tPHL/tPLH

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

3.6(1)

8.0

ns

tPZH/tPZL

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

4.3(1)

10.5

ns

tPHZ/tPLZ

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

3.4(1)

7.5

ns

tsk(0)

skew

note 2

−−

1.5

ns

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