CAP1214 Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet PRODUCT FEATURES General Description Features Fourteen (14) capacitive touch sensor inputs The CAP1214 is a multiple channel Capacitive Touch 1 Compensates for variable sensing pads sensor and LED Driver. Programmable sensitivity The CAP1214 contains up to fourteen (14) individual High SNR allows for easy tuning Capacitive Touch sensor inputs with programmable Automatic recalibration Slider acceleration and position detection sensitivity for use in touch button and slider switch Proximity detection applications. Each sensor input contains automatic Lid closure detection recalibration with programmable time delays. Low power operation The CAP1214 includes compensation circuitry that 4.5uA quiescent current in Deep Sleep provides uniform touch sensitivity across a wide range 250uA quiescent current in Sleep, monitoring 1 button of external sensing pad capacitance. FEEDBACK pin can drive a piezo transducer when a The CAP1214 also contains eleven (11) low side LED touch is detected drivers that offer full-on / off, variable rate blinking, User controlled reset dimness controls, and breathing. LED outputs can be Low external component count linked to capacitive sensor channels. SMBus 2.0 compliant interface to change operating parameters to work in a wide variety of systems Applications Block Read and Write function for quick tasking Consumer Electronics Eleven (11) LED driver outputs Desktop and Notebook PCs Programmable blink, breathe, and dimness controls 8 configurable as GPIOs LCD Monitors LEDs can be linked to capacitive sensor channels Development boards and software available 1. SMSC and the SMSC logo are registered trademarks and Available in 32-pin 5mm x 5mm QFN Lead-free SMSC RightTouch is a trademark of Standard Microsystems Corporation SMS). RoHS Compliant package Block Diagram LED2 LED4 LED6 LED8 LED10 VDD GND LED1 LED3 LED5 LED7 LED9 LED11 RESET SMCLK LED Blink, Breathe, and Dimness control SMBus Slave SMDATA Protocol Capacitive Sensing Algorithm ALERT FEEDBACK CS1 CS3 CS5 CS7 CS9 CS11 CS13 CS2 CS4 CS6 CS8 CS10 CS12 CS14 SMSC CAP1214 DATASHEET Revision 1.0 (08-30-10) Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet Ordering Information: ORDERING NUMBER PACKAGE FEATURES CAP1214-1-EZK-TR 32-Pin QFN 5mm x 5mm Fourteen Capacitive Touch Sensors. (Lead Free RoHS compliant) Eleven LED drivers. SMBus communications. REEL SIZE IS 4,000 PIECES This product meets the halogen maximum concentration values per IEC61249-2-21 For RoHS compliance and environmental information, please visit www.smsc.com/rohs 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 Copyright 2010 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC s standard Terms of Sale Agreement dated before the date of your order (theTerms of Sale Agreemen). The product may contain design defects or errors known as anomalies which may cause the product s functions to deviate from published specifications. Anomaly sheets are available upon request. SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale Agreement, may be obtained by visiting SMSCs website at