TCA9554ADBR datasheet(6/38 Pages) TI1

Part #	TCA9554ADBR

Description	TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

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TCA9554A

SCPS196D – DECEMBER 2010 – REVISED AUGUST 2015

www.ti.com

Electrical Characteristics (continued)

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP(1)

MAX

UNIT

All P-port I/O at VI = VCC or GND

(6), I

O = 0,

I/O = inputs, fscl = 400 kHz, No load

5.5 V

18

30

tr = 3 ns

5.5 V

34

All P-port I/O at VI = VCC or GND

(6), I

O = 0,

3.6 V

15

I/O = inputs, fscl = 400 kHz, No load

2.7 V

9

tr,max = 300 ns

Operating mode

1.65

5

5.5 V

20

All P-port I/O at VI = VCC or GND

(6), I

O = 0,

3.6 V

8

I/O = inputs, fscl = 100 kHz

2.7 V

5

tr,max = 1 µs

ICC

μA

1.65 V

3

5.5 V

1.9

3.5

3.6 V

1.1

1.8

All P-port I/O at VI = VCC, IO = 0,

I/O = inputs, fscl = 0 kHz, No load

2.7 V

1.0

1.6

1.65 V

0.4

1.0

Standby mode

5.5 V

450

700

3.6 V

300

600

All P-port I/O at VI = GND, IO = 0,

I/O = inputs, fscl = 0 kHz, No load

2.7 V

225

500

1.95 V

225

500

Supply current increase (in standby

One P-port I/O at VI = VCC – 0.6 V,

ΔICC

mode) with one I/O input at specified

1.65 V to 5.5 V

70

µA

Other P-port I/O at VI = VCC or GND

voltage level, rather than GND or VCC

Ci

SCL

VI = VCC or GND

1.65 V to 5.5 V

4

5

pF

SDA

5.5

6.5

Cio

VIO = VCC or GND

1.65 V to 5.5 V

pF

P port

8

9.5

(6)

The current through the integrated pull-up resistor has been subtracted from the ICC operating mode current for VI = GND condition.

6

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