Turnkey touch controllers are a quick and easy way to upgrade mechanical buttons to modern touch buttons or displays. With the introduction of the 12-button MTCH2120 touch controller, Microchip Technology Inc. (Microchip Technology) provides designers with a direct path to implement touch button functionality on the user interface. This low-power, water-resistant turnkey touch device integrates the Microchip unified ecosystem, making the design process easier and facilitating the transition between other turnkey solutions and MCU-based touch implementations. The MTCH2120 is the first product in a family of I2C-based touch controllers to support a comprehensive design ecosystem.
The MTCH2120 provides a stable touch experience that is not affected by noise events and humidity, while being highly flexible and adaptable to individual product requirements. Low-power features can group buttons to reduce scanning activity and reduce power consumption while keeping the buttons fully operational.
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MTCH2120 features and ecosystem include:
? Easy Tune automatically adjusts sensitivity and filter levels based on real-time noise assessment, eliminating the need for tedious threshold adjustments
? An MPLAB® Harmony host code configurator plug-in that allows direct connection to Microchip MCUs and MPUs without implementing the I2C protocol on the host
? Design verification through MPLAB Data Visualization Tool
? I2C port expander function
? Access to and compatibility with Microchip’s touch library, minimizing the need for complex software engineering and firmware processing for designers, helping to shorten design cycles · MTCH2120 evaluation board with an onboard SAM C21 host MCU for immediate integration into prototype designs
“The MTCH2120 combines decades of touch experience with the capabilities of Microchip’s The combination of a comprehensive ecosystem of support and development tools provides an advanced touch experience that is easy to use. It’s a win-win solution. Developers can achieve the highest level of touch robustness and great design flexibility without tedious tuning or programming.”
The MTCH2120 is the first product in Microchip’s MTCH family to adopt I2C, and the recently released MTCH1010, MTCH1030 and MTCH1060 also have the same powerful touch performance and simple GPIO interface. The MTCH2XXX family will add more solutions with bus control flexibility, making the ease of use provided by the design ecosystem applicable to more markets.