PCF8574ADGVR datasheet(4/16 Pages) TI

4 / 16 page

PCF8574

REMOTE 8BIT I/O EXPANDER FOR I2C BUS

SCPS068C - JULY 2001 − REVISED JANUARY 2004

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

ADDRESS REFERENCE

INPUTS

I2C-BUS SLAVE ADDRESS

32 (decimal), 20 (hexadecimal)

33 (decimal), 21 (hexadecimal)

34 (decimal), 22 (hexadecimal)

35 (decimal), 23 (hexadecimal)

36 (decimal), 24 (hexadecimal)

37 (decimal), 25 (hexadecimal)

38 (decimal), 26 (hexadecimal)

39 (decimal), 27 (hexadecimal)

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC

−0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI (see Note 1)

−0.5 V to VCC + 0.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range, VO (see Note 1)

−0.5 V to VCC + 0.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current, IIK (VI < 0 )

−20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current, IOK (VO < 0)

−20 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input/Output clamp current, IOK (VO < 0 or VO > VCC)

±400 µA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output low current, IOL (VO = 0 to VCC)

50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output high current, IOH (VO = 0 to VCC)

−4 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous current through VCC or GND

±100 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Note 2): DGV package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 2): DW package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 2): N package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 2): PW package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(see Note 3): RGY package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.

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

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

recommended operating conditions

MIN

MAX

UNIT

VCC

Supply voltage

2.5

VIH

High-level input voltage

0.7

× VCC VCC + 0.5

VIL

Low-level input voltage

−0.5

0.3

× VCC

IOH

High-level output current

−1

IOL

Low-level output current

Operating free-air temperature

−40

°C

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