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MPR121 Datasheet - Freescale Semiconductor

MPR121 Proximity Capacitive Touch Sensor Controller

Table 1. Pin Descriptions Pin No. Pin Name Description 1 IRQ Open Collector Interrupt Output Pin, active low 2 SCL I2C Clock 3 SDA I2C Data 4 ADDR I2C Address Select Input Pin. Connect the ADDR pin to the VSS, VDD, SDA or SCL line, the resulting I2C addresses are 0x5A, 0x5B, 0x5C and .

MPR121 Features

* 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 autoc

MPR121 Datasheet (251.22 KB)

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Datasheet Details

Part number:

MPR121

Manufacturer:

Freescale Semiconductor

File Size:

251.22 KB

Description:

Proximity capacitive touch sensor controller.

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