CapSense® Express™ – One Button and Two Button Capacitive Controllers
Features
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Capacitive Button Input tied to a Configurable Output
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Target Applications
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Industry's Best Configurability
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Advanced Features
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Wide Range of Operating Voltages
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I2C Communication
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Industrial Temperature Range: –40°C to  85°C
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Available in 8-Pin SOIC Package
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For more, see pdf
Overview
The CapSense® Express™ controllers support two capacitive sensing (CapSense) buttons and two general purpose outputs in CY8C20121 and one CapSense button and one general purpose output in CY8C20111. The device functionality is configured through the I2C port and can be stored in on-board nonvolatile memory for automatic loading at power on. The digital outputs are controlled from CapSense inputs in factory default settings, but are user configurable for direct control through I2C.
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