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SX8663 bảng dữ liệu(PDF) 32 Page - Semtech Corporation

tên linh kiện SX8663
Giải thích chi tiết về linh kiện  Capacitive Button Matrix (up to 36) and Proximity Controller with Individual LED Drivers and Buzzer Output
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nhà sản xuất  SEMTECH [Semtech Corporation]
Trang chủ  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SX8663 bảng dữ liệu(HTML) 32 Page - Semtech Corporation

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ADVANCED COMMUNICATIONS & SENSING
Rev5 4
th August 2011
© 2011 Semtech Corp.
www.semtech.com
32
SX8663
Capacitive Button Matrix (up to 36) and Proximity Controller
with Individual LED Drivers and Buzzer Output
SCL
The SCL pin is a high impedance input pin. The SCL pin is protected to VDD, using dedicated devices, in order to
conform to standard I2C slave specifications. The SCL pin has diode protected to GROUND.
An external pull-up resistor (1..10 kOhm) is required on this pin.
Figure 37 shows the simplified diagram of the SCL pin.
Figure 37
Simplified diagram of SCL
SDA
SDA is an IO pin that can be used as an open drain output pin with external pull-up resistor or as a high
impedance input pin. The SDA IO pin is protected to VDD, using dedicated devices, in order to conform to
standard I2C slave specifications. The SDA pin has diode protected to GROUND.
An external pull-up resistor (1..10 kOhm) is required on this pin.
Figure 38 shows the simplified diagram of the SDA pin.
Figure 38
Simplified diagram of SDA
VDD
R_SCL
SCL
SX8663
from host
SCL_IN
VDD
R_SDA
SDA
SX8663
SDA_OUT
from/to host
SDA_IN



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