FT232H UART / FIFO ICs FTDI FT232H Single-Channel USB 2.0 Hi-Speed (480Mb/s) to UART / FIFO ICs have the capability of being configured in a variety of industry-standard serial or parallel interfaces. FTDI 232H UART / FIFO ICs feature single-channel USB to serial/parallel ports with a variety of configurations. FT232H devices handle the entire USB protocol on the chip.