STM8AF5178 datasheet(81/110 Pages) STMICROELECTRONICS

81 / 110 page

STM8AF52/62xx, STM8AF51/61xx

Electrical characteristics

Doc ID 14395 Rev 9

81/110

10.3.10

I2C interface characteristics

Table 44.

I2C characteristics

Symbol

Parameter

Standard mode I2C Fast mode I2C(1)

fMASTER, must be at least 8 MHz to achieve max fast I

2C speed (400 kHz)

Unit

Min(2)

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

Max(2)

Min(2)

Max(2)

tw(SCLL)

SCL clock low time

4.7

—

1.3

—

µs

tw(SCLH)

SCL clock high time

4.0

—

0.6

—

tsu(SDA)

SDA setup time

250

—

100

—

th(SDA)

SDA data hold time

0(3)

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

time

—0(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

900(3)

tr(SDA)

tr(SCL)

SDA and SCL rise time

(VDD 3 V to 5.5 V)

—

1000

—

300

tf(SDA)

tf(SCL)

SDA and SCL fall time

(VDD 3 V to 5.5 V)

—

300

—

300

th(STA)

START condition hold time

4.0

—

0.6

—

µs

tsu(STA)

Repeated START condition setup time

4.7

—

0.6

—

tsu(STO)

STOP condition setup time

4.0

—

0.6

—

µs

tw(STO:STA)

STOP to START condition time

(bus free)

4.7

—

1.3

—

µs

Capacitive load for each bus line

—

400

—

400

STM8AF5178 数据表(PDF) 81 Page - STMicroelectronics

STM8AF5178 数据表(HTML) 81 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载