The MICROCHIP TECH. MCP2221A-I/P is a versatile USB-to-UART/I2C protocol converter designed to simplify USB connectivity in applications requiring UART and/or I2C interfaces. It integrates essential components like USB termination resistors and an oscillator, reducing external component count. The device supports full-speed USB (12 Mb/s) and enumerates as a composite device, providing both Communication Device Class (CDC) for USB-to-UART conversion and Human Interface Device (HID) for I2C device control and configuration. It's ideal for industrial automation, embedded systems, and applications needing flexible communication options.