CY8C20237-24LKXI

Application Specific Microcontrollers Overview

The Infineon CY8C20237-24LKXI is an 8-bit microcontroller within the PSoC family, featuring an M8C CPU core operating at a maximum frequency of 24 MHz. It integrates 8 KB of Flash program memory and 1 KB of SRAM data memory. The device supports up to 16 sensing inputs via its CapSense block and provides 19 general-purpose I/O pins. Key electrical specifications include an operating voltage range of 1.71 V to 5.5 V and an operating temperature range from -40°C to +85°C. It utilizes the QuietZone controller with CSD PLUS sensing algorithm for robust capacitive touch detection.

Application Specific Microcontrollers Feature Summary

• Integrates SmartSense Auto-tuning technology to eliminate manual system tuning during development and production.
• Features a QuietZone Controller with patented Capacitive Sigma Delta PLUS (CSD PLUS) sensing algorithm for high sensitivity and noise immunity.
• Includes a 10-bit incremental ADC, two analog comparators, and programmable pin configurations with high sink current capabilities.
• Supports flexible communication interfaces including I2C Slave and SPI Master/Slave modules.

Application Specific Microcontrollers Applications

• Consumer electronics requiring capacitive touch interfaces
• White goods with button or slider controls
• Industrial control panels with proximity sensing needs

Application Specific Microcontrollers Procurement Notes

Verify the specific package type corresponding to the suffix 'LKXI' against the manufacturer's ordering guide, as the datasheet lists multiple packages for the CY8C20237 series. Confirm RoHS compliance status and ensure the component meets the required environmental specifications for the intended application environment.

Application Specific Microcontrollers Selection Notes

Select this model when a balance of moderate I/O count and advanced CapSense features is required. The 8 KB Flash size is suitable for applications with limited code complexity. Ensure the design accommodates the 1.71 V to 5.5 V supply range and utilizes the SmartSense algorithm to simplify hardware tuning for manufacturing variations.

Application Specific Microcontrollers Part Context

This component belongs to the CY8C20xx7/S series of 1.8 V CapSense controllers. It shares architectural similarities with other members like the CY8C20237-24SXI but differs in package configuration. The series is designed to replace multiple traditional MCU-based components with a single programmable chip, integrating analog and digital logic.

Application Specific Microcontrollers Replacement Considerations

Direct replacements within the same package must be verified through the official ordering information section. Cross-referencing part numbers such as CY8C20237 variants with different suffixes is necessary to match pinout and thermal requirements.