MPR121 - Proximity Capacitive Touch Sensor Controller

Freescale Semiconductor

Datasheet Details

Part number	MPR121
Manufacturer	Freescale Semiconductor
File Size	251.22 KB
Description	Proximity Capacitive Touch Sensor Controller
Datasheet	MPR121_FreescaleSemiconductor.pdf

Table 1. Connect a 0.1 μF bypass cap to VSS 6 VSS Ground 7 REXT External Resistor Connect a 75 kΩ 1% resistor to VSS to set internal refe

an increased internal intelligence plus Freescale’s second generation capacitance detection engine. Some major enhancements include an increased electrode count, a hardware configurable I2C address, an expanded filtering system with debounce, and completely independent electrodes with built-in autoconfiguration. The device also features a 13th simulated electrode which represents the simultaneous charging of all the electrodes connected together. When used with a touch panel or touch screen arra.

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Published: Mar 18, 2010 |