sx8634 Semtech Corporation, sx8634 Datasheet - Page 33

• Manufacturer Part Number: sx8634
• Description: Low Power, Capacitive Button And Slider Touch Controller 12 Sensors With Enhanced Led Drivers And Proximity Sensing
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
4.3 Host interface pins
The host interface consists of the interrupt pin INTB, a reset pin RESETB and the standard I2C pins: SCL and
SDA.
INTB
The INTB pin is an open drain output that requires an external pull-up resistor (1..10 kOhm). The INTB pin is
protected to VDD using dedicated devices. The INTB pin has diode protected to GROUND.
Figure 37 shows a simplified diagram of the INTB pin.
Revision 7_6, October 10
to host
R_INT
Figure 36
VDD
Figure 37
(12 sensors) with Enhanced LED Drivers and Proximity Sensing
© 2010 Semtech Corp.
Simplified diagram of CN and CP
Low Power, Capacitive Button and Slider Touch Controller
SX8634
Simplified diagram of INTB
CN
CP
SX8634
INTB
33
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VANA
INT
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SX8634