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Capacitive Touch Controllers
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Capacitive Touch Controllers
  • SX8663
    • Capacitive Button Matrix (up to 36) and Proximity Controller with Individual LED Drivers and Buzzer Output
  • SX8662
    • Capacitive Button Matrix (up to 36) Controller with Individual LED Drivers and Buzzer Output
  • SX8661
    • Low Power, Capacitive Button Touch and Proximity Controller (8 sensors) with LED Drivers and Analog Output
  • SX8660
    • Ultra Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers and Analog
  • SX8649
    • Ultra Low Power, Capacitive Button and Wheel Touch Controller (8 sensors) with Enhanced LED Drivers
  • SX8648
    • Ultra Low Power, Capacitive Button and Slider Touch Controller (8 sensors) with Enhanced LED Drivers
  • SX8647
    • Ultra Low Power, Capacitive Wheel Touch Controller (8 sensors) with Enhanced LED Drivers
  • SX8646
    • Ultra Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers
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Semtech SX8633

Semtech SX8633

Low Power, Capacitive Button Touch Controller (12 sensors) with Enhanced LED Drivers and Proximity Sensing

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The SX8633 is an ultra low power, fully integrated 12-channel solution for capacitive touch-buttons and proximity detection applications. Unlike many capacitive touch solutions, the SX8633 features dedicated capacitive sense inputs (that requires no external components) in addition to 8 general purpose I/O ports (GPIO). Each GPIO is typically configured as LED driver with independent PWM source for enhanced lighting control such as intensity and fading.

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Datasheet

Pb Free/ROHS Status

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Features


  • Complete twelve Sensors Capacitive Touch Controller for Buttons
    • Pre-configured for eight Buttons
    • Eight LED Drivers with Individual Intensity, Fading Control and Autolight Mode
    • 256 steps PWM Linear and Logarithmic control
  • Proximity Sensing up to several centimetres
  • High Resolution Capacitive Sensing
    • Up to 100pF of Offset Capacitance Compensation at
    • Full Sensitivity
    • Capable of Sensing through Overlay Materials up to
  • 5mm thick
  • Extremely Low Power Optimized for Portable Application
    • 8uA (typ) in Sleep Mode
    • 80uA (typ) in Doze Mode (Scanning Period 195ms)
    • 220uA (typ) in Active Mode (Scanning Period 30ms)
  • Programmable Scanning Period from 15ms to 1500ms
  • Auto Offset Compensation
    • Eliminates False Triggers due to Environmental
    • Factors (Temperature, Humidity)
  • Initiated on Power-up and Configurable Intervals
  • Multi-Time In-Field Programmable Firmware Parameters for Ultimate Flexibility
    • On-chip user programmable memory for fast, self contained start-up
  • "Smart" Wake-up Sequence for Easy Activation from Doze
  • No External Components per Sensor Input
  • Internal Clock Requires No External Components
  • Differential Sensor Sampling for Reduced EMI
  • 400 KHz Fast-Mode I²C Interface with Interrupt
  • -40°C to +85°C Operation

Applications


  • Notebook/Netbook/Portable/Handheld computers
  • Cell phones, PDAs
  • Consumer Products, Instrumentation, Automotive
  • Mechanical Button Replacement

Packaging

  • MLPQ-W32

Order Codes

  • SX8633I05AWLTRT
 
Related searches:
button enhanced semtech sensing proximity
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