STTS22H datasheet(11/29 Pages) STMICROELECTRONICS

部件名	STTS22H

功能描述	Low-voltage, ultra-low-power, 0.5 °C accuracy I²C/SMBus 3.0 temperature sensor

PDF	29 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

11 / 29 page

5.2.1

I²C protocol

Subject to general operating conditions for VDD and Top.

Table 11. I²C slave timing values

Symbol

Parameter

Values with VDD < 3.0 V(1)

Values with VDD ≥ 3.0 V(1)

Min

Max

Unit

Min

Max

Unit

f(SCL)

SCL clock frequency

400

kHz

0.01

MHz

tw(SCLL) SCL clock low time

1.3

µs

600

tw(SCLH) SCL clock high time

0.6

160

tsu(SDA) SDA setup time

100

th(SDA)

SDA data hold time

th(ST)

START condition hold time

0.6

260

tsu(SR)

Repeated START condition setup time

0.6

260

tsu(SP)

STOP condition setup time

0.6

0.26

µs

tw(SP:SR) Bus free time between STOP and START condition

1.3

0.5

Capacitive load for each bus line

400

1. Data based on standard I²C protocol requirement, not tested in production. Values measured @ 25°C with VDD = VBUS (pull-

up connected to VDD).

Figure 4. I²C slave timing diagram

tsu(SP)

tw(SCLL)

tsu(SDA)

tsu(SR)

th(ST)

tw(SCLH)

th(SDA)

tw(SP:SR)

START

REPEATED

START

STOP

SDA

SCL

STTS22H

I²C interface

DS12606 - Rev 4

page 11/29

STTS22H 数据表(PDF) 11 Page - STMicroelectronics

STTS22H 数据表(HTML) 11 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

数据表下载