Cap touch sensor suits user interface apps

The QST108 capacitive touch sensor uses a pure digital firmware-based solution that implements Quantum’s patented and field-proven charge-transfer QProx capacitive technology and provides an intelligent single-chip control interface that responds to users’ touch. The device allows users to create capacitive touch panels of up to eight keys for their product user interfaces, using conventional or flexible printed-circuit boards.

Housed in a 32-pin LQFP package, the QST108 drives up to eight LEDs and features PWM capability to drive a beeper output or to control LED brightness. Debounced touch detection results are accessible through individual outputs or through the I2 C interface. ($1.80 ea/10,000—available now.)

STMicroelectronics , Lexington , MA
Information 781-861-2650
http://www.st.com