Ft232r -

: With integrated USB termination resistors, it minimizes the external bill of materials, making it a "glue-less" interface for MCUs and FPGAs.

The chip includes on-board EEPROM (electrically erasable programmable read-only memory) that stores USB descriptor data. This allows manufacturers to customize the device's name, vendor ID (VID), product ID (PID), and even the serial number. This is critical for applications requiring multiple identical devices on the same PC—each can have a unique serial number, preventing confusion. ft232r