The Freescale MPR084 manual describes an 8‑channel capacitive touch sensor controller with I2C interface, IRQ, and audio feedback for appliance and PC…
The MPR084 is a proximity capacitive touch sensor controller that monitors up to eight independent touch pads. It communicates with a host via an I2C bus with an optional IRQ line and provides audible feedback that mimics a mechanical key press.
Typical applications include home‑appliance control panels, PC peripherals, remote controls, MP3 players and mobile phones. The device operates from 1.8 V to 3.6 V, draws low current, and is available in 16‑pin QFN and TSSOP packages. This manual is written in Chinese.
| Operating voltage | 1.8–3.6 V |
|---|---|
| Average working current | 150 µA |
| Standby current | 10 µA |
| Number of touch pads | 8 |
| Interface | I2C with IRQ |
| Package | 16‑pin QFN and TSSOP |
| Operating temperature | -40 °C to +85 °C |
The MPR084 can control up to eight independent touch pads.
It uses an I2C bus with an optional IRQ line for host communication.
The device operates from 1.8 V to 3.6 V.