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KITMPR121EVM
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KITMPR121EVM

  • 所属类别:传感器
  • 产品名称:触摸传感器
  • 厂商:FREESCALE
  • 生产批号:12+
  • 封装:QFN-20
  • 库存状态:有库存
  • 库存量:10000
  • 最低订购量:1
  • 详细资料:点击查找KITMPR121EVM的pdf资料
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  • Product Introduction

KITMPR121EVM Touch sensor

The MPR121 is the second generation of sensor controllers following the initial release of the MPR03x family of devices. In addition to Freescale's second-generation capacitive sensing engine, the MPR121 also improves internal intelligence. Key enhancements include increased number of electrodes, hardware configuration of I2C addresses, a new debounce filtering system in addition to the original filtering, and a fully independent auto-configurable electrode. The device also adds a 13th virtual analog electrode that powers up all connected electrodes simultaneously for close proximity detection of touchpads or touchscreen arrays.

 

characteristic


 

• 1.71 V to 3.6 V operating voltage

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

• 3μA shutdown current

• 12 electrodes

• Continuous and independent automatic calibration of each electrode input

• Each electrode can be set with independent touch and release thresholds

• 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 from -40°C to +85°C

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