STMPE801 datasheet(10/26 Pages) STMICROELECTRONICS

部件名	STMPE801

功能描述	8-bit port expander Xpander logic

PDF	26 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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10 / 26 page

I2C module

STMPE801

10/26

Figure 4.

I2C timing

5.2

I2C features

The features that are supported by the I2C interface are as below:

●

I2C slave device

●

Operates at 1.8V

●

Compliant to Philips I2C specification version 2.1

●

Supports standard (uo to 100Kbps) and fast (up to 400Kbps) modes

Table 7. I2C address

Symbol

Parameter

Min

Typ

Max

Unit

fSCL

SCL clock frequency

400

kHz

tLOW

Clock low period

1.3

µs

tHIGH

Clock high period

600

SDA and SCL fall time

300

tHD:STA

START condition hold time

(After this period the first clock is generated)

600

tSU:STA

START condition setup time

(Only relevant for a repeated start period)

600

tSU:DAT

Data setup time

100

tHD:DAT

Data hold time

µs

tSU:STO

STOP condition setup time

600

tBUF

Time the bust must be free before a new

trasmission can start

1.3

µs

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