CPT112S-A02-GUR

Overview

The CPT112S-A02-GUR is a 12-channel capacitive touch controller from the TouchXpress family, manufactured by Silicon Labs. It provides an I2C interface for connecting to host microcontrollers, supporting up to 12 capacitive sensor inputs configured as buttons or sliders. The device is designed to simplify the integration of capacitive touch functionality into embedded systems without requiring complex firmware development on the host side.

Feature Summary

• Integrates fixed-function capacitive sensing logic to reduce host processing load
• Communicates with host systems via standard I2C interface
• Supports flexible input configurations including individual buttons and linear sliders

Applications

• Consumer electronics requiring simple touch interfaces
• Home appliance control panels
• Industrial equipment user interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and check for recent Product Change Notifications or End-of-Life notices, as availability may be restricted. Ensure storage conditions comply with moisture sensitivity levels specified in the official datasheet prior to assembly.

Selection Notes

Evaluate system requirements against the 12-channel input capacity and I2C communication speed. Consider mechanical design constraints for sensor placement and cover material compatibility. Assess power supply stability and noise immunity relevant to capacitive sensing accuracy in the target application environment.

Part Context

This component belongs to the Silicon Labs TouchXpress series of fixed-function controllers. These devices are engineered to offload touch sensing tasks from main processors, offering a cost-effective solution for adding intuitive user interaction capabilities to compact electronic designs without extensive software overhead.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in verified documentation. Consult Silicon Labs technical support for current alternatives or updated product line recommendations due to potential discontinuation status.