Silicon Labs CPT212B and CPT213B TouchXpress controllers are self-contained touch controllers that link to a host MCU, saving firmware development when adding touch to home appliances, medical equipment, consumer electronics, instruments, control panels and lighting.
CPT212B features up to 12 sensor inputs in a QFN20, consuming 200 µA in optimised active mode and 1µA sleeping.
CPT213B device offers up to 13 sensor inputs in a QFN24 and adds IEC 60730 Class B safety library support, designed for preventing unsafe operation of household appliances.
Connection is through an I2C interface, and an interrupt pin can wake the host processor from sleep after a proximity touch detection.
CPT212B SLEXP8018A is an evaluation board with 12 capacitive sense pads, and CPT213B SLEXP8019A has 13 inputs.
Both boards include a buzzer for touch feedback, touch qualification engine, and an expansion header for connecting to Silicon Labs EFM8 or EFM32 starter kits.
Silicon Labs has a page on the whole lot here.