H3LIS331DL datasheet(12/38 Pages) STMICROELECTRONICS

tên linh kiện	H3LIS331DL

Giải thích chi tiết về linh kiện	MEMS motion sensor: low-power high-g 3-axis digital accelerometer

PDF	38 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

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12 / 38 page

Mechanical and electrical specifications

H3LIS331DL

12/38

DocID023111 Rev 2

2.3.2

I2C - inter-IC control interface

Subject to general operating conditions for Vdd and Top.

Figure 4. I2C slave timing diagram

Note:

Measurement points are done at 0.2·Vdd_IO and 0.8·Vdd_IO, for both ports.

Table 6. I2C slave timing values

Symbol

Parameter

I2C standard mode (1)

I2C fast mode (1)

Unit

Min.

Max.

Min.

Max.

f(SCL)

SCL clock frequency

100

400

KHz

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

0.01

3.45

0.01

0.9

μs

tr(SDA) tr(SCL) SDA and SCL rise time

1000

20 + 0.1Cb (2)

300

tf(SDA) tf(SCL) SDA and SCL fall time

300

20 + 0.1Cb (2)

300

th(ST)

START condition hold time

0.6

μs

tsu(SR)

Repeated START condition

setup time

4.7

0.6

tsu(SP)

STOP condition setup time

0.6

tw(SP:SR)

Bus free time between STOP

and START condition

4.7

1.3

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

2. Cb = total capacitance of one bus line, in pF.

SDA

SCL

tf(SDA)

tsu(SP)

tw(SCLL)

tsu(SDA)

tr(SDA)

tsu(SR)

th(ST)

tw(SCLH)

th(SDA)

tr(SCL)

tf(SCL)

tw(SP:SR)

START

REPEATED

START

STO P

START

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