STM8AF52A6TCX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM8AF52A6TCX

Automotive 8-bit MCU, with up to 128 Kbyte Flash, data EEPROM, 10-bit ADC, timers, LIN, CAN, USART, SPI, I2C, 3 to 5.5 V

STMicroelectronics 

Electrical characteristics

STM8AF526x/8x/Ax STM8AF6269/8x/Ax

10.3.10 I2C interface characteristics

Symbol

Table 42. I2C characteristics

Parameter

Standard mode I2C

Min(2)

Max(2)

Fast mode I2C(1)

Min(2) Max(2)

Unit

tw(SCLL)

tw(SCLH)

tsu(SDA)

th(SDA)

tr(SDA)

tr(SCL)

tf(SDA)

tf(SCL)

th(STA)

tsu(STA)

tsu(STO)

tw(STO:STA)

SCL clock low time

SCL clock high time

SDA setup time

SDA data hold time

SDA and SCL rise time

(VDD 3 V to 5.5 V)

SDA and SCL fall time

(VDD 3 V to 5.5 V)

START condition hold time

Repeated START condition setup time

STOP condition setup time

STOP to START condition time

(bus free)

4.7

-

1.3

-

µs

4.0

-

0.6

-

250

-

100

-

0(3)

-

0(4)

900(3)

-

1000

-

300

ns

-

300

-

300

4.0

-

0.6

-

µs

4.7

-

0.6

-

4.0

-

0.6

-

µs

4.7

-

1.3

-

µs

Cb

Capacitive load for each bus line

-

400

-

400 pF

1. fMASTER, must be at least 8 MHz to achieve max fast I2C speed (400 kHz)

2. Data based on standard I2C protocol requirement, not tested in production

3. The maximum hold time of the start condition has only to be met if the interface does not stretch the low time

4. The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the undefined region

of the falling edge of SCL

84/125

DocID14395 Rev 15

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