The Freescale MPR083 manual describes the 8‑direction capacitive touch sensor controller, its I2C interface, features, and application guidelines.
The MPR083 is a near‑field capacitive touch sensor controller from Freescale Semiconductor designed to monitor capacitive touch‑pad status and replace mechanical rotary switches. It communicates with a host via an I2C bus and can generate interrupt signals for state changes.
The device supports eight directional positions, provides audio feedback through an integrated buzzer driver, and includes features such as EMI filtering, FIFO data output, and low‑power operation. Typical applications include home appliances, PC peripherals, remote controls, and mobile devices. This manual is written in Chinese.
| Operating voltage | 1.8–3.6 V |
|---|---|
| Average working current | 150 µA (all pads monitored) |
| Standby current | 10 µA |
| Temperature range | -40 °C to +85 °C |
| Package | 16‑pin QFN and TSSOP |
| I²C interface with IRQ | Yes |
| Supported rotation directions | 8‑direction |
The MPR083 uses an I²C serial interface and can provide an interrupt (IRQ) signal to the host.
The controller supports eight directional (8‑position) rotation.
The device operates from 1.8 V to 3.6 V.
Standby current is 10 µA.