SN74LVC2T45

DUALBIT DUALSUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS

SCES516E − DECEMBER 2003 − REVISED MAY 2004

4

POST OFFICE BOX 655303

recommended operating conditions (see Notes 4 through 6)

VCCI

VCCO

MIN

MAX

UNIT

VCCA

Supply voltage

1.65

5.5

V

VCCB

Supply voltage

1.65

5.5

V

1.65 V to 1.95 V

VCCI × 0.65

VIH

High-level input

Data inputs

2.3 V to 2.7 V

1.7

V

VIH

High-level input

voltage

Data inputs

(see Note 7)

3 V to 3.6 V

2

V

voltage

(see Note 7)

4.5 V to 5.5 V

VCCI × 0.7

1.65 V to 1.95 V

VCCI × 0.35

VIL

Low-level input

Data inputs

2.3 V to 2.7 V

0.7

V

VIL

Low-level input

voltage

Data inputs

(see Note 7)

3 V to 3.6 V

0.8

V

voltage

(see Note 7)

4.5 V to 5.5 V

VCCI × 0.3

DIR

1.65 V to 1.95 V

VCCA × 0.65

VIH

High-level input

DIR

(Referenced to VCCA)

2.3 V to 2.7 V

1.7

V

VIH

High-level input

voltage

(Referenced to VCCA)

(see Note 8)

3 V to 3.6 V

2

V

voltage

(see Note 8)

4.5 V to 5.5 V

VCCA × 0.7

DIR

1.65 V to 1.95 V

VCCA × 0.35

VIL

Low-level input

DIR

(Referenced to VCCA)

2.3 V to 2.7 V

0.7

V

VIL

Low-level input

voltage

(Referenced to VCCA)

(see Note 8)

3 V to 3.6 V

0.8

V

voltage

(see Note 8)

4.5 V to 5.5 V

VCCA × 0.3

VI

Input voltage

0

5.5

V

VO

Output voltage

0

VCCO

V

1.65 V to 1.95 V

−4

IOH

High-level output current

2.3 V to 2.7 V

−8

mA

IOH

High-level output current

3 V to 3.6 V

−24

mA

4.5 V to 5.5 V

−32

1.65 V to 1.95 V

4

IOL

Low-level output current

2.3 V to 2.7 V

8

mA

IOL

Low-level output current

3 V to 3.6 V

24

mA

4.5 V to 5.5 V

32

1.65 V to 1.95 V

20

Input transition rise or

Data inputs

2.3 V to 2.7 V

20

∆t/∆v

Input transition rise or

fall rate

Data inputs

3 V to 3.6 V

10

ns/V

t/ v

fall rate

4.5 V to 5.5 V

5

ns/V

Control input

1.65 V to 5.5 V

5

TA

Operating free-air temperature

−40

85

°C

NOTES:

4. VCCI is the VCC associated with the data input port.

5. VCCO is the VCC associated with the output port.

6. 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.

7. For VCCI values not specified in the data sheet, VIH(min) = VCCI x 0.7 V, VIL(max) = VCCI x 0.3 V.

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