CY8C20110-SX2IT

Overview

The CY8C20110-SX2IT is a PSoC Low Power CapSense microcontroller from Infineon Technologies, designed for capacitive touch sensing applications. It integrates a high-performance 8-bit CPU with 32 KB of Flash memory and 2 KB of SRAM. The device features ten dedicated CapSense I/Os and ten general-purpose I/Os, supporting up to ten buttons or sliders. Communication is handled via a dedicated I2C interface. Operating within a voltage range of 2.40 V to 5.50 V, it functions reliably between -40°C and 85°C. The component supports PWM outputs and utilizes SmartSense technology for robust touch detection in varying environmental conditions.

Feature Summary

• Integrates CapSense technology for reliable capacitive touch sensing without mechanical switches
• Combines an 8-bit CPU with substantial non-volatile memory and static RAM for complex application logic
• Features dedicated communication interfaces including I2C for system connectivity
• Includes programmable analog blocks and digital peripherals for flexible sensor integration

Applications

• Consumer electronics requiring capacitive user interfaces such as remote controls and home appliances
• Industrial control panels needing durable, sealed input devices resistant to environmental factors
• Automotive interior systems for switch replacement in dashboards and center consoles

Procurement Notes

Verify the specific suffix IT against official Infineon documentation to confirm temperature grade and packaging details. Ensure compatibility with existing PCB footprints and power supply rails before ordering. Cross-reference the part number with authorized distributors to confirm current availability and authenticity. Check for any recent lifecycle status updates or obsolescence notices directly from the manufacturer.

Selection Notes

Select this component when a low-power solution with integrated touch sensing is required alongside standard microcontroller capabilities. Consider the pin count and available I/O resources relative to the target application's complexity. Evaluate the operating voltage range against the system's power budget. Compare performance metrics with other PSoC families if higher processing speed or additional analog resources are needed.

Part Context

This part belongs to the Cypress (now Infineon) PSoC 2 family, which merges programmable analog and digital blocks with an 8-bit CPU. The CY8C20110 variant specifically targets cost-sensitive applications requiring CapSense functionality. It represents a convergence of MCU and peripheral integration, reducing external component count compared to discrete solutions.

Replacement Considerations

Check for direct replacements within the CY8C201xx series that may offer updated packaging or minor feature enhancements. Verify pin-to-pin compatibility with alternative PSoC 2 devices from Infineon. Ensure any substitute maintains the same CapSense channel count and memory configuration.