7.26 I2C Interface I/O

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V

to 7.6 V (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX UNIT

VIH

Input voltage high

SCL, SDA (STANDARD and FAST modes)

0.7 × VREG

V

VIL

Input voltage low

SCL, SDA (STANDARD and FAST modes)

–0.5

0.3 × VREG

V

VOL

Output low voltage

SCL, SDA, IOL = 1 mA (STANDARD and FAST modes)

0.2 × VREG

V

CIN

Input capacitance

10

pF

ILKG

Input leakage

current

1

µA

RPD

Pull-down resistance

3.3

kΩ

7.27 I2C Interface Timing

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V

to 7.6 V (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

NOM

MAX

UNIT

tR

Clock rise time

10% to 90%

300

ns

tF

Clock fall time

90% to 10%

300

ns

tHIGH

Clock high period

600

ns

tLOW

Clock low period

1.3

µs

tSU(START)

Repeated start setup

time

600

ns

td(START)

Start for first falling

edge to SCL

600

ns

tSU(DATA)

Data setup time

100

ns

tHD(DATA)

Data hold time

0

µs

tSU(STOP)

Stop setup time

600

ns

tBUF

Bus free time

between stop and

start

1.3

µs

fSW

Clock operating

frequency

SLAVE mode, SCL 50% duty cycle

400

kHz

tSU(STA)

SCL

SDA

tw(H)

tw(L)

tf

tr

t(BUF)

tr

td(STA)

REPEATED

START

th(DAT)

tsu(DAT)

tf

tsu(STOP)

STOP

START

Figure 7-1. I2C Timing

BQ28Z610-R1

SLUSE07B – JANUARY 2020 – REVISED JANUARY 2022

www.ti.com

12

Submit Document Feedback

Copyright © 2022 Texas Instruments Incorporated

Product Folder Links: BQ28Z610-R1