STV223X datasheet(43/86 Pages) STMICROELECTRONICS

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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS

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4.11 I²C BUS CHARACTERISTICS

4.11.1 SCL

4.11.2 SDA

4.11.3 I²C Timing

Figure 19. I²C Bus Timing

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VIL

Low Level Input Voltage

-0.5

1.5

VIH

High Level Input Voltage

VCC+0.5

ILI

Input Leakage Current

VIN = 0 to VCC

-10

µA

fSCL

Clock Frequency

100

kHz

Input Rise Time

1.5V to 3V

1.000

Input Fall Time

1.5V to 3V

300

Input Capacitance

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VIL

Low Level input Voltage

-0.5

1.5

VIH

High Level input Voltage

VCC+0.5

ILI

Input Leakage Current

VIN = 0 to VCC

-10

µA

Input Capacitance

Input Rise Time

1.5V to 3V

1.000

Input Fall Time

1.5V to 3V

300

VOL

Low Level Output Voltage

IOL = 3mA

0.4

Output Fall Time

3V to 1.5V

250

Load Capacitance

400

Input Capacitance

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

tLOW

Clock Low period

4.7

µs

tHIGH

Clock High period

µs

tSU,DAT

Data Set-up Time

250

tHD,DAT

Data Hold Time

340

tSU,STO

Set-up Time from Clock High to

Stop

4µs

tBUF

Start Set-up Time following a Stop

4.7

µs

tHD,STA

Start Hold Time

µs

tSU,STA

Start Set-up Time following Clock

Low to High Transition

4.7

µs

tBUF

tLOW

tHIGH

tHD,STA

tSU,STA

tHD,DAT

tSU,DAT

tSU,STO

SDA

SCL

SDA

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