General Description
The CAP1128, which incorporates RightTouch® technology, is a multiple channel Capacitive Touch sensor with multiple power LED drivers. It contains eight (8) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input automatically recalibrates to compensate for gradual environmental changes.

FEATUREs
• Eight (8) Capacitive Touch Sensor Inputs
   - Programmable sensitivity
   - Automatic recalibration
   - Individual thresholds for each button
• Proximity Detection
• Multiple Button Pattern Detection
• Calibrates for Parasitic Capacitance
• Analog Filtering for System Noise Sources
• Press and Hold feature for Volume-like Applications
• Multiple Communication Interfaces
   - SMBus / I2C compliant interface
   - SPI communications
   - Pin selectable communications protocol and
      multiple slave addresses (SMBus / I2C only)
• Low Power Operation
   - 5uA quiescent current in Deep Sleep
   - 50uA quiescent current in Standby (1 sensor
      input monitored)
   - Samples one or more channels in Standby
• Two (2) LED Driver Outputs
   - Open Drain or Push-Pull
   - Programmable blink, breathe, and dimness
      controls
   - Can be linked to Capacitive Touch Sensor
      inputs
• Dedicated Wake output flags touches in low
   power state
• System RESET pin
• Available in 20-pin 4mm x 4mm QFN RoHS compliant package

APPLICATIONs
• Desktop and Notebook PCs
• LCD Monitors
• Consumer Electronics
• Appliances