SN74AVCH8T245_07 datasheet(5/20 Pages) TI

Part #	SN74AVCH8T245

Description	8-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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Manufacturer	TI [Texas Instruments]

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Electrical Characteristics

(1) (2)

SN74AVCH8T245

8-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES565G – APRIL 2004 – REVISED MARCH 2007

over recommended operating free-air temperature range (unless otherwise noted)

TA = 25°C

–40

°C to 85°C

PARAMETER

TEST CONDITIONS

VCCA

VCCB

UNIT

MIN

TYP

MAX

MIN MAX

IOH = –100 µA

1.2 V to 3.6 V

VCCO – 0.2

IOH = –3 mA

1.2 V

0.95

IOH = –6 mA

1.4 V

1.05

VOH

VI = VIH

V

IOH = –8 mA

1.65 V

1.2

IOH = –9 mA

2.3 V

1.75

IOH = –12 mA

3 V

2.3

IOL = 100 µA

1.2 V to 3.6 V

0.2

IOL = 3 mA

1.2 V

0.15

IOL = 6 mA

1.4 V

0.35

VOL

VI = VIL

V

IOL = 8 mA

1.65 V

0.45

IOL = 9 mA

2.3 V

0.55

IOL = 12 mA

3 V

0.7

Control

II

VI = VCCA or GND

1.2 V to 3.6 V

±0.025 ±0.25

±1

µA

inputs

VI = 0.42 V

1.2 V

25

VI = 0.49 V

1.4 V

15

IBHL(3)

VI = 0.58 V

1.65 V

25

µA

VI = 0.7 V

2.3 V

45

VI = 0.8 V

3.3 V

100

VI = 0.78 V

1.2 V

–25

VI = 0.91 V

1.4 V

–15

IBHH(4)

VI = 1.07 V

1.65 V

–25

µA

VI = 1.6 V

2.3 V

–45

VI = 2 V

3.3 V

–100

1.2 V

50

1.6 V

125

IBHLO(5)

VI = 0 to VCC

1.95 V

200

µA

2.7 V

300

3.6 V

500

1.2 V

–50

1.6 V

–125

IBHHO(6)

VI = 0 to VCC

1.95 V

–200

µA

2.7 V

–300

3.6 V

–500

(1)

VCCI is the VCC associated with the input port.

(2)

VCCO is the VCC associated with the output port.

(3)

The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND

and then raising it to VIL max.

(4)

The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to

VCC and then lowering it to VIH min.

(5)

An external driver must source at least IBHLO to switch this node from low to high.

(6)

An external driver must sink at least IBHHO to switch this node from high to low.

5

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