The CY8C20055-24SXI is a specific model of the IC CAPSENSE, which features 8KB of flash memory. It has a 16-pin SOIC package and is designed by Cypress Semiconductor (now part of Infineon Technologies). The "Adafruit" label likely indicates that this product is being sold or distributed through Adafruit, but it does not necessarily imply any direct involvement in its development or design.