CAP1208-1-SL Microchip

CAP1208 8-Channel Capacitive Touch Sensor General Description Applications The CAP1208 is a multiple channel capacitive touch Desktop and Notebook PCs sensor controller. It contains eight (8) individual capac- LCD Monitors itive touch sensor inputs with programmable sensitivity Consumer Electronics for use in touch sensor applications. Each sensor input Appliances is calibrated to compensate for system parasitic capac- itance and automatically recalibrated to compensate Features for gradual environmental changes. The CAP1208 includes Multiple Pattern Touch recogni- Eight (8) Capacitive Touch Sensor Inputs tion that allows the user to select a specific set of but- - Programmable sensitivity tons to be touched simultaneously. If this pattern is - Automatic recalibration detected, a status bit is set and an interrupt is gener- - Calibrates for parasitic capacitance ated. - Individual thresholds for each button The CAP1208 has Active and Standby states, each Multiple Button Pattern Detection with its own sensor input configuration controls. Power Power Button Support consumption in the Standby state is dependent on the Press and Hold Feature for Volume-like Applica- number of sensor inputs enabled as well as averaging, tions sampling time, and cycle time. Deep Sleep is the low- est power state available, drawing 5 A (typical) of cur- 3.3V or 5V Supply rent. In this state, no sensor inputs are active, and Analog Filtering for System Noise Sources communications will wake the device. RF Detection and Avoidance Filters Digital EMI Blocker 8kV ESD Rating on All Pins (HBM) Low Power Operation -5 A quiescent current in Deep Sleep -50 A quiescent current in Standby (1 sensor input monitored) - Samples one or more channels in Standby 2 SMBus / I C Compliant Communication Interface Available in a 16-pin 3mm x 3mm QFN RoHS compliant package Available in a 14-pin SOIC RoHS compliant pack- age 2013-2015 Microchip Technology Inc. DS00001570C-page 1CAP1208 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: