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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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QST508AB1 Fiches technique(PDF) 1 Page - STMicroelectronics |
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QST508AB1 Fiches technique(HTML) 1 Page - STMicroelectronics |
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1 / 51 page  Not For New Design This is information on a product still in production but not recommended for new designs. July 2008 Rev 5 1/51 1 QST108 Capacitive touch sensor device 8 keys with individual key state outputs or I2C interface Features ■ Patented charge-transfer design ■ Up to 8 independent QTouch™ keys supported ■ Individual key state outputs or I2C interface ■ Fully “debounced” results ■ Patented AKS™ Adjacent Key Suppression ■ Self-calibration and auto drift compensation ■ Spread-spectrum bursts to reduce EMI ■ Up to 5 general-purpose outputs ■ ECOPACK® (RoHS compliant) package Applications This device specifically targets human interfaces and front panels for a wide range of applications such as PC peripherals, home entertainment systems, gaming devices, lighting and appliance controls, remote controls, etc. QST devices are designed to replace mechanical switching/control devices and the reduced number of moving parts in the end product provides the following advantages: ■ Lower customer service costs ■ Reduced manufacturing costs ■ Increased product lifetime Description The QST108 is the ideal solution for the design of capacitive touch sensing user interfaces. Touch-sensitive controls are increasingly replacing electromechanical switches in home appliances, consumer and mobile electronics, and in computers and peripherals. Capacitive touch controls allow designers to create stylish, functional, and economical designs which are highly valued by consumers, often at lower cost than the electromechanical solutions they replace. The QST108 QTouch™ sensor IC is a pure digital solution based on Quantum's patented charge- transfer (QProx™) capacitive technology. QTouch™ and QProx™ are trademarks of the Quantum Research Group. LQFP32 (7x7 mm) Table 1. Device summary Feature Order codes QST108KT6 Operating supply voltage 2.4 to 5.5 V Supported interfaces Individual key state outputs or I2C Interface Operating temperature -40° to +85° C Package LQFP32 (7x7 mm) www.st.com |
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