SX8661 datasheet(39/88 Pages) SEMTECH

tên linh kiện	SX8661

Giải thích chi tiết về linh kiện	Low Power, Capacitive Button Touch and Proximity Controller

PDF	88 Pages

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nhà sản xuất	SEMTECH [Semtech Corporation]

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ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision v3.2, January 2011

www.semtech.com

SX8661

Low Power, Capacitive Button Touch and Proximity Controller

(8 sensors) with LED Drivers and Analog 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 44 shows the simplified diagram of the SCL pin.

Figure 44

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 45 shows the simplified diagram of the SDA pin.

Figure 45

Simplified diagram of SDA

VDD

R_SCL

SCL

SX8661

from host

SCL_IN

VDD

R_SDA

SDA

SX8661

SDA_OUT

from/to host

SDA_IN

SX8661 bảng dữ liệu(PDF) 39 Page - Semtech Corporation