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SX8645 Datasheet(PDF) 5 Page - Semtech Corporation |
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SX8645 Datasheet(HTML) 5 Page - Semtech Corporation |
5 / 76 page ADVANCED COMMUNICATIONS & SENSING DATASHEET Revision 7_5, February 10 © 2010 Semtech Corp. www.semtech.com 5 SX8645 Ultra Low Power, Capacitive Button and Wheel Touch Controller (12 sensors) with Enhanced LED Drivers 1.3 Pin Description Number Name Type Description 1 CAP2 Analog Capacitive Sensor 2 2 CAP3 Analog Capacitive Sensor 3 3 CAP4 Analog Capacitive Sensor 4 4 CAP5 Analog Capacitive Sensor 5 5 CAP6 Analog Capacitive Sensor 6 6 CAP7 Analog Capacitive Sensor 7 7 CAP8 Analog Capacitive Sensor 8 8 CAP9 Analog Capacitive Sensor 9 9 CAP10 Analog Capacitive Sensor 10 10 CAP11 Analog Capacitive Sensor 11 11 CN Analog Integration Capacitor, negative terminal (1nF between CN and CP) 12 CP Analog Integration Capacitor, positive terminal (1nF between CN and CP) 13 VDD Power Main input power supply 14 INTB Digital Output Interrupt, active LOW, requires pull up resistor (on host or external) 15 SCL Digital Input I2C Clock, requires pull up resistor (on host or external) 16 SDA Digital Input/Output I2C Data, requires pull up resistor (on host or external) 17 GPIO0 Digital Input/Output General Purpose Input/Output 0 18 GPIO1 Digital Input/Output General Purpose Input/Output 1 19 GND Ground Ground 20 GPIO2 Digital Input/Output General Purpose Input/Output 2 21 GPIO3 Digital Input/Output General Purpose Input/Output 3 22 GPIO4 Digital Input/Output General Purpose Input/Output 4 23 GPIO5 Digital Input/Output General Purpose Input/Output 5 24 GND Ground Ground 25 GPIO6 Digital Input/Output General Purpose Input/Output 6 26 GPIO7 Digital Input/Output General Purpose Input/Output 7 27 VDIG Analog Digital Core Decoupling, connect to a 100nF decoupling capacitor 28 GND Ground Ground 29 RESETB Digital Input Active Low Reset. Connect to VDD if not used. 30 VANA Analog Analog Core Decoupling, connect to a 100nF decoupling capacitor 31 CAP0 Analog Capacitive Sensor 0 32 CAP1 Analog Capacitive Sensor 1 bottom plate GND Ground Exposed pad connect to ground Table 1 Pin description |
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