CAP1166 6 Channel Capacitive Touch Sensor with 6 LED Drivers General Description Features The CAP1166, which incorporates RightTouch tech- Six (6) Capacitive Touch Sensor Inputs nology, is a multiple channel Capacitive Touch sensor - Programmable sensitivity with multiple power LED drivers. It contains six (6) indi- - Automatic recalibration vidual capacitive touch sensor inputs with programma- - Individual thresholds for each button ble sensitivity for use in touch sensor applications. Proximity Detection Each sensor input automatically recalibrates to com- Multiple Button Pattern Detection pensate for gradual environmental changes. Calibrates for Parasitic Capacitance The CAP1166 also contains six (6) LED drivers that Analog Filtering for System Noise Sources offer full-on / off, variable rate blinking, dimness con- trols, and breathing. Each of the LED drivers may be Press and Hold feature for Volume-like Applica- linked to one of the sensor inputs to be actuated when tions a touch is detected. As well, each LED driver may be Multiple Communication Interfaces individually controlled via a host controller. 2 - SMBus / I C compliant interface The CAP1166 includes Multiple Pattern Touch recogni- - SPI communications tion that allows the user to select a specific set of but- - Pin selectable communications protocol and tons to be touched simultaneously. If this pattern is 2 multiple slave addresses (SMBus / I C only) detected, then a status bit is set and an interrupt gen- Low Power Operation erated. - 5uA quiescent current in Deep Sleep Additionally, the CAP1166 includes circuitry and sup- - 50uA quiescent current in Standby (1 sensor port for enhanced sensor proximity detection. input monitored) The CAP1166 offers multiple power states operating at - Samples one or more channels in Standby low quiescent currents. In the Standby state of opera- Six (6) LED Driver Outputs tion, one or more capacitive touch sensor inputs are - Open Drain or Push-Pull active and all LEDs may be used. If a touch is detected, it will wake the system using the WAKE/SPI MOSI pin. - Programmable blink, breathe, and dimness controls Deep Sleep is the lowest power state available, draw- - Can be linked to Capacitive Touch Sensor ing 5uA (typical) of current. In this state, no sensor inputs inputs are active. Driving the WAKE/SPI MOSI pin or communications will wake the device. Dedicated Wake output flags touches in low power state System RESET pin Applications Available in 20-pin 4mm x 4mm QFN or 24-pin Desktop and Notebook PCs SSOP RoHS compliant package LCD Monitors Consumer Electronics Appliances 2015 Microchip Technology Inc. DS00001621B-page 1CAP1166 TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: