This document describes the features and characteristics of the LQ QT60161B 16 KEY QMatrix™ KEYPANEL SENSOR IC. The controller features an advanced second generation QMatrix controller, 16 touch keys through any dielectric, 100% autocal for life, SPI Slave or Master/Slave interface, parallel scan interface, adjustable sensitivity, response time, sleep mode, and more. It is suitable for applications such as automotive panels, machine tools, ATM machines, touch-screens, appliance controls, outdoor keypads, security keypanels, and industrial keyboards.
The QT60161B is a 16‑key QMatrix touch‑sensor IC designed for security panels, appliance controls, ATMs, automotive panels, industrial keyboards, and other devices that require robust, sealed touch interfaces. It supports up to 16 keys through any dielectric material up to 5 cm thick and provides auto‑calibration, drift compensation, and noise suppression for reliable operation in harsh environments.
The device offers SPI (master‑only or master‑slave), UART, and a parallel scan port for communication, and includes extensive command sets for key configuration, status reporting, and diagnostics. Electrical specifications such as a 44‑pin TQFP package, +5 V supply, and an operating temperature range of 40 °C to +105 °C are provided, along with detailed mechanical dimensions and pin‑out information.
| Package | 44‑pin TQFP |
|---|---|
| Operating Temperature Range | 40 °C to +105 °C |
| Maximum Touch Keys | 16 |
The IC can detect up to 16 touch keys.
The device is supplied in a 44‑pin TQFP package.