74LVC2245APWDH datasheet(10/17 Pages) PHILIPS

부품명	74LVC2245APWDH

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

PDF	17 Pages

Scroll/Zoom	100%

제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

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10 / 17 page

2003 Nov 17

Philips Semiconductors

Product speciﬁcation

Octal transceiver with direction pin, 30

Ω series

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

74LVC2245A

AC WAVEFORMS

handbook, halfpage

MNA176

An, Bn input

Bn, An output

tPLH

tPHL

GND

VOH

VOL

Fig.5 The inputs An, Bn to outputs Bn, An propagation delays.

VOL and VOH are typical output voltage drop that occur with the output load.

VCC

INPUT

tr =tf

1.2 V

0.5

× VCC VCC

≤ 2.5 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

handbook, full pagewidth

MNA395

tPLZ

tPHZ

outputs

disabled

outputs

enabled

outputs

enabled

Qn output

LOW-to-OFF

OFF-to-LOW

Qn output

HIGH-to-OFF

OFF-to-HIGH

OE input

VOL

VOH

VCC

GND

tPZL

tPZH

Fig.6 3-state enable and disable times.

VX =VOL +0.3VatVCC ≥ 2.7 V;

VX =VOL +0.1VatVCC < 2.7 V;

VY =VOH − 0.3VatVCC ≥ 2.7 V;

VY =VOH − 0.1VatVCC < 2.7 V.

VOL and VOH are typical output voltage drop that occur with the output load.

VCC

INPUT

tr =tf

1.2 V

0.5

× VCC VCC

≤ 2.5 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

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