CAP1014
Multiple Channel Capacitive
Touch Sensor and LED Driver
PRODUCT FEATURES
General Description
The CAP1014 is a multiple channel Capacitive Touch
sensor and LED Driver.
The CAP1014 contains up to fourteen (14) individual
Capacitive Touch sensor inputs with programmable
sensitivity for use in touch button and slider switch
applications. Each sensor also contains automatic
recalibration with programmable time delays.
The CAP1014 also contains eleven (11) low side LED
drivers that offer full-on / off, variable rate blinking,
dimness controls, and breathing. Capacitive buttons can
be linked to LED outputs.
Datasheet
Features
Fourteen (14) Capacitive Touch Sensor inputs
—
—
—
—
—
Programmable sensitivity
High SNR allows for easy tuning
Automatic recalibration
Slider Acceleration Detection
Slider positional detection
Low Power operation
— 150uA quiescent current in Deep Sleep
— 250uA quiescent current in Sleep mode while
monitoring 2 buttons.
Applications
Consumer Electronics
Desktop and Notebook PC’s
LCD Monitors
Alert to signal touch to host processor
User controlled reset
Low External Component Count
SMBus 2.0 compliant interface to change operating
parameters to work in a wide variety of systems
— Block Read and Write function for quick tasking
Eleven (11) LED Driver outputs
— Programmable blink, breathe, and dimness controls
— 8 Configurable as GPIOs
— Buttons can be linked to LED responses
Development boards and software available
Available in 32-pin 5mm x 5mm QFN Lead-free
RoHS Compliant package
Block Diagram
LED2
LED1
LED3
LED4
LED5
LED6
LED7
LED8
LED10
LED9
LED11
RESET
VDD GND
LED Blink, Breathe, and Dimness control
SMBus
Slave
Protocol
SMCLK
SMDATA
ALERT
Capacitive Sensing Algorithm
CS1
CS2
CS3
CS4
CS5
CS6
CS7
CS8
CS9
CS11
CS13
CS10
CS12
CS14
SMSC CAP1014
DATASHEET
Revision 1.65 (08-11-09)
SMSC [ SMSC CORPORATION ]
