SX8661Z datasheet(37/87 Pages) SEMTECH

Part #	SX8661Z

Description	Low Power, Capacitive Button Touch and Proximity Controller with LED Drivers and Analog Output

PDF	87 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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37 / 87 page

ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision v4.0, February 2016

www.semtech.com

SX8661Z

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 42 shows the simplified diagram of the SCL pin.

Figure 42

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 43 shows the simplified diagram of the SDA pin.

Figure 43

Simplified diagram of SDA

VDD

R_SCL

SCL

SX8661Z

from host

SCL_IN

VDD

R_SDA

SDA

SX8661Z

SDA_OUT

from/to host

SDA_IN

SX8661Z Datasheet(PDF) 37 Page - Semtech Corporation