MPR121QR2
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MPR121QR2

  • Category:sensor
  • Product Name:Touch sensor
  • Manufacturers:FREESCALE
  • Production Batch Number:12+
  • Encapsulation:QFN-20
  • Stock Status:There is stock
  • Stock Quantity:10000
  • Minimum order quantity: 1
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  • Product introduction

MPR121QR2 touchsensor

The MPR121 is the second generation of sensor controllers following the first release of the MPR03x family of devices. In addition to Freescale's second-generation capacitive detection engine, the MPR121 improves internal intelligence. Key enhancements include an increased number of electrodes, hardware I2C addresses, a new debounce filter system in addition to the original filtering, and a fully independent auto-configurable electrode built in. A 13th virtual analog electrode has been added to power up all connected electrodes simultaneously for proximity detection of touchpads or touchscreen arrays.

 

characteristic


 

• 1.71 V to 3.6 V operation

• 29μA current, 12 electrodes monitored, 16ms response time, IRQ enabled

• 3μA shutdown current

• 12 electrodes

• Continuous independent auto-calibration of each electrode input

• Independent touch and release thresholds can be set for each electrode

• I2C interface, IRQ output to notify electrode status changes

• 3 mm x 3 mm x 0.65 mm 20-pin QFN package

• Provides up to 8 LED driver functions

• Operating temperature -40°C to +85°C

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