Features • Sensor Keys: – Up to 11 QTouch™ channels • Data Acquistion: – Measurement of keys triggered either by a signal applied to the SYNC pin or at regular intervals timed by the AT42QT1110's internal clock – Keys measured sequentially for better performance, or in parallel groups for faster operation – Raw data for key touches can be read as a report over the SPI interface • Discrete Outputs: – Configurable “Detect” outputs indicating individual key touch (7-key mode) • Device Setup: – Device configuration can be stored in EEPROM • Technology: – Patented spread-spectrum charge-transfer (direct mode) • Key Outline Sizes: – 6 mm x 6 mm or larger (panel thickness dependent); widely differe...

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