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AW9233CSR bảng dữ liệu(PDF) 12 Page - Shanghai awinic technology co.,ltd

tên linh kiện AW9233CSR
Giải thích chi tiết về linh kiện  3-Key Capacitive Touch Controller Integrated with 3-LED Driver
PDF  48 Pages
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nhà sản xuất  AWINIC [Shanghai awinic technology co.,ltd]
Trang chủ  http://www.awinic.com.cn/index.php
Logo AWINIC - Shanghai awinic technology co.,ltd

AW9233CSR bảng dữ liệu(HTML) 12 Page - Shanghai awinic technology co.,ltd

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AW9233
June 2018 V1.2
www.awinic.com.cn
12
Copyright © 2016 SHANGHAI AWINIC TECHNOLOGY CO., LTD
AD
0
1
1
0
1
0
R/W
Figure 5
Device Address Configuration
9.3.2
Data Validation
When SCL is high level, SDA level must be constant. SDA can be changed only when SCL is low level.
SCL
SDA
Data Line
Stable
Data Valid
Change
of Data
Allowed
Figure 6
Data Validation Diagram
9.3.3
ACK(Acknowledgement)
ACK means the successful transfer of I2C bus data. After master sends 8bits data, SDA must be released;
SDA is pulled to GND by slave device when slave acknowledges.
When master reads, AW9233 sends 8bit data, releases the SDA and waits for ACK from master. If ACK is
send and I2C stop is not send by master, AW9233 sends the next data. If ACK is not send by master, AW9233
stops to send data and waits for I2C stop.
1
2
8
9
Data Output
by Transmiter
Data Output
by Receiver
SCL From
Master
START
condition
Not Acknowledge（NACK）
Acknowledge（ACK）
Clock Pulse for
Acknowledgement
Figure 7
I2C ACK Timing
9.3.4
I2C Start/Stop
I2C start: SDA changes form high level to low level when SCL is high level.
I2C stop: SDA changes form low level to high level when SCL is high level.



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