SN74AVCH2T45DCUT datasheet(5/23 Pages) TI

部品番号	SN74AVCH2T45DCUT

部品情報	DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

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Electrical Characteristics

(1) (2)

SN74AVCH2T45

DUAL-BIT DUAL-SUPPLY BUS TRANSCEIVER

WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SCES582D – JULY 2004 – REVISED AUGUST 2005

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 V

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

II

DIR input

VI = VCCA or GND

1.2 V to 3.6 V

±0.025 ±0.25

±1

µA

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)

VCCO is the VCC associated with the output port.

(2)

VCCI is the VCC associated with the input 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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