PCA9554APWR datasheet(12/33 Pages) TI

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Electrical Characteristics

PCA9554A

REMOTE 8-BIT I2C AND SMBus I/O EXPANDER

WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

SCPS127A – SEPTEMBER 2006 – REVISED FEBRUARY 2007

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP(1)

MAX

UNIT

VIK

Input diode clamp voltage

II = –18 mA

2.3 V to 5.5 V

–1.2

VPOR

Power-on reset voltage

VI = VCC or GND, IO = 0

VPOR

1.5

1.65

2.3 V

1.8

3 V

2.6

IOH = –8 mA

4.5 V

3.1

4.75 V

4.1

VOH

P-port high-level output voltage(2)

2.3 V

1.7

3 V

2.5

IOH = –10 mA

4.5 V

4.75 V

SDA

VOL = 0.4 V

2.3 V to 5.5 V

2.3 V

3 V

VOL = 0.5 V

4.5 V

4.75 V

IOL

P port(3)

2.3 V

3 V

VOL = 0.7 V

4.5 V

4.75 V

INT

VOL = 0.4 V

2.3 V to 5.5 V

SCL, SDA

±1

VI = VCC or GND

2.3 V to 5.5 V

µA

A2–A0

±1

IIH

P port

VI = VCC

2.3 V to 5.5 V

µA

IIL

P port

VI = GND

2.3 V to 5.5 V

–100

µA

5.5 V

104

175

VI = VCC, IO = 0, I/O = inputs,

3.6 V

fscl = 400 kHz, No load

2.7 V

Operating mode

5.5 V

150

VI = VCC, IO = 0, I/O = inputs,

3.6 V

fscl = 100 kHz, No load

2.7 V

ICC

µA

5.5 V

450

700

VI = GND, IO = 0, I/O = inputs,

3.6 V

300

600

fscl = 0 kHz, No load

2.7 V

225

500

Standby mode

5.5 V

0.25

VI = VCC, IO = 0, I/O = inputs,

3.6 V

0.2

0.9

fscl = 0 kHz, No load

2.7 V

0.1

0.8

One input at VCC – 0.6 V,

2.3 V to 5.5 V

1.5

Other inputs at VCC or GND

Additional current in standby

∆I

mode

Every LED I/O at VI = 4.3 V;

5.5 V

fscl = 0 kHz

SCL

VI = VCC or GND

2.3 V to 5.5 V

SDA

5.5

6.5

Cio

VIO = VCC or GND

2.3 V to 5.5 V

P port

9.5

(1)

All typical values are at nominal supply voltage (2.5-V, 3.3-V, or 5-V VCC) and TA = 25°C.

(2)

The total current sourced by all I/Os must be limited to 85 mA.

(3)

Each I/O must be externally limited to a maximum of 25 mA, and the P port (P0 to P7) must be limited to a maximum current of 200 mA.

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