74AVCH1T45DBVRE4 datasheet(4/34 Pages) TI

No de pièce	74AVCH1T45DBVRE4

Description	SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION ND 3-STATE OUTPUTS

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Fabricant	TI [Texas Instruments]

Site Internet	http://www.ti.com

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Recommended Operating Conditions

(1) (2) (3) (4) (5)

SN74AVCH1T45

SINGLE-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES598D – JULY 2004 – REVISED JANUARY 2008

VCCI

VCCO

MIN

MAX

UNIT

VCCA

Supply voltage

1.2

3.6

V

VCCB

Supply voltage

1.2

3.6

V

1.2 V to 1.95 V

VCCI × 0.65

High-level

VIH

Data inputs(4)

1.95 V to 2.7 V

1.6

V

input voltage

2.7 V to 3.6 V

2

1.2 V to 1.95 V

VCCI × 0.35

Low-level

VIL

Data inputs(4)

1.95 V to 2.7 V

0.7

V

input voltage

2.7 V to 3.6 V

0.8

1.2 V to 1.95 V

VCCA × 0.65

High-level

DIR

VIH

1.95 V to 2.7 V

1.6

V

input voltage

(referenced to VCCA)

(5)

2.7 V to 3.6 V

2

1.2 V to 1.95 V

VCCA × 0.35

Low-level

DIR

VIL

1.95 V to 2.7 V

0.7

V

input voltage

(referenced to VCCA)

(5)

2.7 V to 3.6 V

0.8

VI

Input voltage

0

3.6

V

Active state

0

VCCO

VO

Output voltage

V

3-state

0

3.6

1.2 V

–3

1.4 V to 1.6 V

–6

IOH

High-level output current

1.65 V to 1.95 V

–8

mA

2.3 V to 2.7 V

–9

3 V to 3.6 V

–12

1.2 V

3

1.4 V to 1.6 V

6

IOL

Low-level output current

1.65 V to 1.95 V

8

mA

2.3 V to 2.7 V

9

3 V to 3.6 V

12

Δt/Δv

Input transition rise or fall rate

5

ns/V

TA

Operating free-air temperature

–40

85

°C

(1)

VCCI is the VCC associated with the input port.

(2)

VCCO is the VCC associated with the output port.

(3)

All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

(4)

For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V.

(5)

For VCCI values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V.

4

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