CY8C20247S-24LKXIT

Application Specific Microcontrollers Overview

The Infineon CY8C20247S-24LKXIT is an 8-bit microcontroller from the PSoC 2 family, featuring an M8C CPU core operating at a maximum frequency of 24 MHz. It integrates 16 kB of Flash program memory and 2 kB of SRAM data memory within a 16-pin UFQFN package. The device includes a dedicated CapSense block supporting up to 10 sensing inputs with SmartSense auto-tuning capabilities. Key system resources include I2C slave, SPI master/slave interfaces, three 16-bit timers, a 10-bit ADC, and two comparators. It operates within a voltage range of 1.71 V to 5.5 V and supports an industrial temperature range of –40°C to +85°C.

Application Specific Microcontrollers Feature Summary

• M8C 8-bit Harvard architecture processor running up to 24 MHz
• CapSense controller with SmartSense auto-tuning for robust capacitive sensing
• 16 kB Flash and 2 kB SRAM with read-while-write EEPROM emulation
• Integrated analog peripherals including 10-bit ADC and two comparators

Application Specific Microcontrollers Applications

• Capacitive touch button interfaces
• Low-power consumer electronics requiring smart sensing
• Industrial control panels with noise immunity requirements
• Battery-operated devices utilizing deep sleep modes

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'LKXIT' against the manufacturer's current ordering guide to confirm package type (UFQFN-16) and tape/reel packaging details. Ensure compatibility with PSoC Designer software versions for firmware development. Check for any silicon errata relevant to this specific revision before finalizing design-in decisions.

Application Specific Microcontrollers Selection Notes

Select this component when 10 CapSense channels are sufficient and a compact 16-pin footprint is required. Compare against CY8C20237 variants if lower Flash capacity (8 kB) meets application needs. Consider CY8C20447 or CY8C20667 models if more GPIOs or sensing inputs are necessary. Verify that the 1.71 V minimum supply voltage aligns with the system power rail during brown-out conditions.

Application Specific Microcontrollers Part Context

This part belongs to the CY8C20xx7/S series, which are 1.8 V CapSense controllers designed to replace multiple discrete components. The '20247' designation indicates the 16 kB Flash/2 kB SRAM configuration within the 16-pin package option. It shares the same core architecture as larger pin-count variants but offers reduced I/O count suitable for simpler interface applications.

Application Specific Microcontrollers Replacement Considerations

Direct pin-compatible replacements within the same package may include CY8C20237S-24LKXIT if reduced memory is acceptable. Cross-family migration to PSoC 4 or PSoC 6 requires significant architectural changes due to different CPU cores and peripheral configurations.