SMSC's capacitive touch sensor products, featuring RightTouch® technology, set a new standard in simplifying development, improving noise immunity, and lowering BOM costs in PC, LCD monitors, white goods and consumer electronic designs. These devices have been carefully designed to filter for common noise sources such as backlight inverters, DC-DC switching regulators and wireless frequencies. They support a wide variety of interfaces such as I2C, SMBus, SMSC BC-Link™ and SPI and also provide world-class ESD protection of ±8kV HBM with no external ESD protection circuits required.

To simplify fine tuning and use, these devices provide an uncomplicated three-step process for system button tuning, enabling faster time-to-market and lower product development costs. They also support a wide range of base and touch capacitances to allow for flexibility in casing material and thickness.


CAP1133 Part Number/Package ListDetails
3 Channel Capacitive Touch Sensor with 3 LED Drivers
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1133Three capacitive touch sensor inputs, Three LED drivers, SMBus interfaceCAP1133-1-AIA-TR10 DFN
CAP1105 Part Number/Package ListDetails
5 Channel Capacitive Touch Sensor
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1105Five capacitive touch sensor inputs, Full Duplex SPI interfaceCAP1105-1-AIA-TR10 DFN
CAP1106 Part Number/Package ListDetails
6 Channel Capacitive Touch Sensor
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1106-1Six capacitive touch sensor inputs, SMBus interfaceCAP1106-1-AIA-TR10 DFN
CAP1106-2Six capacitive touch sensor inputs, BCLink interfaceCAP1106-2-AIA-TR10 DFN
CAP1126 Part Number/Package ListDetails
6 Channel Capacitive Touch Sensor with 2 LED Drivers
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1126Six capacitive touch sensor inputs, Two LED drivers, Dedicated Wake, Reset, SMBus / BC-Link / SPI interfacesCAP1126-1-AP-TR16 QFN
CAP1166 Part Number/Package ListDetails
6 Channel Capacitive Touch Sensor with 6 LED Drivers
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1166Six capacitive touch sensor inputs, Six LED drivers, Dedicated Wake, Reset, SMBus / BC-Link / SPI interfacesCAP1166-1-BP-TR20 QFNE
CAP1166Six capacitive touch sensor inputs, Six LED drivers, Dedicated Wake, Reset, SMBus / BC-Link / SPI interfacesCAP1166-1-CZC-TR24 SSOP
CAP1128 Part Number/Package ListDetails
8 Channel Capacitive Touch Sensor with 2 LED Drivers
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1128Eight capacitive touch sensor inputs, Two LED drivers, Dedicated Wake, Reset, SMBus / BC-Link / SPI interfacesCAP1128-1-BP-TR20 QFN
CAP1188 Part Number/Package ListDetails
8 Channel Capacitive Touch Sensor with 8 LED Drivers
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1188Eight capacitive touch sensor inputs, Eight LED drivers, Dedicated Wake, Reset, SMBus / BC-Link / SPI interfacesCAP1188-1-CP-TR24 QFN
CAP1114 Part Number/Package ListDetails
Multiple Channel Capacitive Touch Sensor and LED Driver
Part NumberInfo / ProductOrder NumberLead Free Package
CAP1114Fourteen Capacitive Touch Sensors. Eleven LED drivers. SMBus communications.CAP1114-1-EZK-TR32 QFN
CAP1214 Part Number/Package ListDetails
Multiple Channel Capacitive Touch Sensor and LED Driver
Part NumberOrder NumberLead Free Package
CAP1214-1CAP1214-1-EZK-TR32 QFN