CY8C20424-12LQXIT

Overview

The CY8C20424-12LQXIT is an 8-bit microcontroller from the CapSense PSoC family, featuring an M8C CPU core with speeds up to 12 MHz. It integrates 8 KB of flash program storage and 512 bytes of SRAM data memory. The device supports up to 28 general-purpose I/O pins and includes a dedicated CapSense analog system for capacitive sensing applications. Operating voltage ranges from 2.4 V to 5.25 V, with active current consumption of 1.5 mA at 3.0 V and 12 MHz.

Feature Summary

• Configurable capacitive sensing elements supporting up to 25 buttons, one slider, and proximity sensing without external components
• Integrated internal oscillators including a main oscillator and low-speed oscillator eliminating the need for external crystals
• Flexible communication interfaces including I2C slave and SPI master-slave modules for system connectivity
• Low power operation with sleep mode current consumption and integrated supervisory circuits for system reliability

Applications

• Capacitive touch interface designs for consumer electronics
• Multimedia control keys and sliders for notebook computers
• Proximity sensing applications requiring reliable finger detection through dielectric materials
• LED control systems utilizing configurable LED behavior modes

Procurement Notes

Verify the specific package type and temperature grade required for your application against the ordering code definitions in the datasheet. Confirm that the development environment PSoC Designer is compatible with the target operating system before initiating procurement. Ensure supply chain continuity as Infineon maintains existing part numbers for this portfolio.

Selection Notes

Select this component when designing systems requiring integrated capacitive sensing capabilities alongside standard microcontroller functions. The device is suitable for applications needing flexible I/O configurations and programmable analog blocks. Consider the available pinout options ranging from 16 to 48 pins based on the number of required GPIOs and CapSense channels.

Part Context

This device belongs to the Cypress Semiconductor PSoC 1 family, now part of the Infineon Technologies product portfolio. The CY8C20x24 series represents a programmable system-on-chip architecture designed to replace multiple discrete components. It combines a fast CPU with configurable analog and digital blocks on a single die.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the CY8C20224, CY8C20324, or CY8C20524 families. Verify functional equivalence regarding CapSense channel counts and memory sizes before substitution.