TCA9538DBRG4.A datasheet(6/40 Pages) TI2

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TCA9538

SCPS199D – AUGUST 2014 – REVISED OCTOBER 2016

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Electrical Characteristics (continued)

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

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP(1)

MAX

UNIT

ICC

Operating mode

VI = VCC or GND, IO = 0,

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

tr = 3 ns

5.5 V

μA

VI = VCC or GND, IO = 0,

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

tr,max = 300 ns

5.5 V

3.6 V

2.7 V

1.65 V

VI = VCC or GND, IO = 0,

I/O = inputs, fscl = 100 kHz, No load

tr,max = 1 µs

5.5 V

3.6 V

2.7 V

1.65 V

Standby mode

VI = VCC or GND, IO = 0,

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

5.5 V

1.9

3.5

μA

3.6 V

1.1

1.8

2.7 V

1.6

1.65 V

0.4

ΔICC

Additional current in standby

mode

One P-port input at VCC – 0.6 V,

Other P-port inputs at VCC or GND

1.65 V to 5.5 V

µA

SCL

VI = VCC or GND

1.65 V to 5.5 V

Cio

SDA

VIO = VCC or GND

1.65 V to 5.5 V

5.5

6.5

P port

9.5

6.6 I

2C Interface Timing Requirements

over operating free-air temperature range (unless otherwise noted) (see Figure 9)

MIN

MAX

UNIT

STANDARD MODE

fscl

I2C clock frequency

100

kHz

tsch

I2C clock high time

μs

tscl

I2C clock low time

4.7

μs

tsp

I2C spike time

tsds

I2C serial-data setup time

250

tsdh

I2C serial-data hold time

ticr

I2C input rise time

1000

ticf

I2C input fall time

300

tocf

I2C output fall time

10-pF to 400-pF bus

300

tbuf

I2C bus free time between Stop and Start

4.7

μs

tsts

I2C Start or repeated Start condition setup

4.7

μs

tsth

I2C Start or repeated Start condition hold

μs

tsps

I2C Stop condition setup

μs

tvd(data)

Valid data time

SCL low to SDA output valid

3.45

μs

tvd(ack)

Valid data time of ACK condition

ACK signal from SCL low to

SDA (out) low

3.45

μs

I2C bus capacitive load

400

FAST MODE

fscl

I2C clock frequency

400

kHz

tsch

I2C clock high time

0.6

μs

tscl

I2C clock low time

1.3

μs

tsp

I2C spike time

tsds

I2C serial-data setup time

100

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