SN74AVC4T774 datasheet(4/19 Pages) TI

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PACKAGE THERMAL IMPEDANCE

RECOMMENDED OPERATING CONDITIONS

(1) (2) (3)

SN74AVC4T774

4-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES693A – FEBRUARY 2008 – REVISED FEBRUARY 2008

UNIT

PW package(1)

108

Package thermal impedance

RGY package(2)

°C/W

RSV package(1)

184

(1)

The package thermal impedance is calculated in accordance with JESD 51-7.

(2)

The package thermal impedance is calculated in accordance with JESD 51-5.

VCCI

VCCO

MIN

MAX

UNIT

VCCA

Supply voltage

1.2

3.6

VCCB

Supply voltage

1.2

3.6

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

input voltage

2.7 V to 3.6 V

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

input voltage

2.7 V to 3.6 V

0.8

1.2 V to 1.95 V

VCCA × 0.65

DIR

High-level

VIH

(referenced to VCCA)

(5)

1.95 V to 2.7 V

1.6

input voltage

(DIRx, OE)

2.7 V to 3.6 V

1.2 V to 1.95 V

VCCA × 0.35

DIR

Low-level

VIL

(referenced to VCCA)

(5)

1.95 V to 2.7 V

0.7

input voltage

(DIRx, OE)

2.7 V to 3.6 V

0.8

Input voltage

3.6

Active state

VCCO

Output voltage

3-state

3.6

1.1 V to 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

2.3 V to 2.7 V

–9

3 V to 3.6 V

–12

1.1 V to 1.2 V

1.4 V to 1.6 V

IOL

Low-level output current

1.65 V to 1.95 V

2.3 V to 2.7 V

3 V to 3.6 V

Δt/Δv

Input transition rise or fall rate

ns/V

Operating free-air temperature

–40

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

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