Proximity Capacitive Touch Sensor Controller

The MPR121 is the second generation Sensor controller after the initial release of the MPR03x series devices. The MPR121 will feature increased internal intelligence in addition to Freescale’s second generation capacitance detection engine. Some of the major additions include an increased electrode count, a hardware configurable I 2C address, an expanded filtering system with debounce, and completely independent electrodes with auto-configuration built in. The device also features a 13th simulated electrode that represents the simultaneous charging of all the electrodes connected together to allow for increased proximity detection in a touch panel or Touch Screen array. By Freescale Semiconductor, Inc
MPR121 's PackagesMPR121 's pdf datasheet
MPR121QR2 QFN




MPR121 Pinout, Pinouts
MPR121 pinout,Pin out
This is one package pinout of MPR121,If you need more pinouts please download MPR121's pdf datasheet.

MPR121 Application circuits
MPR121 circuits
This is one application circuit of MPR121,If you need more circuits,please download MPR121's pdf datasheet.


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