CY8C20224-12LKXI

Overview

The CY8C20224-12LKXI is a CapSense PSoC Programmable System-on-Chip from Cypress Semiconductor. It integrates an M8C CPU core with speeds up to 12 MHz, 8 KB of flash program storage, and 512 bytes of SRAM data storage. The device features a configurable analog system supporting capacitive sensing for up to 25 buttons, one slider, and proximity detection. Operating voltage ranges from 2.4 V to 5.25 V, with active current at 1.5 mA (3.0 V, 12 MHz) and sleep current at 2.8 µA (3.3 V). It includes internal oscillators, I2C/SPI interfaces, and GPIOs.

Feature Summary

• Configurable capacitive sensing elements support buttons, sliders, and proximity sensors without external components.
• Harvard-architecture M8C processor provides high performance with low power consumption across operating voltages.
• Integrated CapSense analog system enables reliable finger detection through thick acrylic with excellent noise immunity.
• Flexible on-chip memory allows partial updates and supports in-system serial programming.

Applications

• Capacitive touch interface designs
• Multimedia control keys
• Proximity sensing applications

Procurement Notes

Verify the specific ordering suffix against the official Infineon/Cypress datasheet to ensure correct package type and temperature rating. Confirm that the component matches the original Cypress Semiconductor specifications before integration into production systems.

Selection Notes

Select this component when a single-chip solution is required for capacitive sensing combined with microcontroller processing. Ensure the application fits within the 8 KB flash and 512-byte SRAM limits. Verify that the available GPIO count meets the project's input/output requirements.

Part Context

This device belongs to the CY8C20x24 family of CapSense PSoC devices. These chips are designed to replace multiple traditional MCU-based components with a single programmable chip. The architecture combines configurable analog and digital blocks with a fast CPU.

Replacement Considerations

Check for CY8C20324 or CY8C20424 variants if different pin counts are needed. Verify compatibility with existing firmware due to potential differences in available GPIOs and package configurations.