CY8C201A0-SX2IT

Overview

The CY8C201A0-SX2IT is a capacitive touch controller from Infineon Technologies, designed for low-pin-count applications. It supports up to 10 capacitive sensing buttons and utilizes an I2C interface for communication alongside general-purpose outputs. The device operates within a supply voltage range of 1.71 V to 5.5 V and functions reliably across temperatures from -40 °C to +85 °C. Housed in a 16-lead SOIC package, it integrates SmartSense technology for robust performance. This component serves as a dedicated solution for integrating touch interfaces without requiring complex microcontroller resources.

Feature Summary

• Integrates SmartSense technology for automatic tuning and environmental adaptation
• Supports up to 10 capacitive sensing channels with button input capability
• Utilizes I2C interface for simplified system integration

Applications

• Consumer electronics with limited pin availability
• Appliance control panels requiring capacitive inputs
• Industrial human-machine interfaces

Procurement Notes

Verify the specific suffix SX2IT against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure the ordering part number matches the exact temperature grade and packaging format required for your assembly process. Cross-reference the manufacturer's official documentation for any recent lifecycle status updates or recommended replacement components.

Selection Notes

Select this component when a dedicated touch controller is needed to offload processing from the main CPU. It is suitable for designs requiring up to 10 buttons with minimal external components. Consider the I2C interface compatibility with your host processor and verify that the 16-lead SOIC package fits your PCB layout constraints. Evaluate power consumption requirements against the 1.71 V to 5.5 V operating range.

Part Context

This part belongs to the PSoC 2 family of programmable systems-on-chip, specifically optimized for capacitive touch applications. It leverages Cypress/Infineon's CapSense technology to provide reliable touch detection. The device is part of a broader ecosystem of touch controllers designed to simplify user interface design in embedded systems.

Replacement Considerations

Consult Infineon's official obsolescence notices for direct replacements. Potential alternatives may include other members of the CY8CMBR series or newer PSoC 2 variants with updated features. Verify pinout and software compatibility before substitution.