The FT2232D is the 3rd
generation of FTDI's popular USB UART/FIFO IC. The FT2232D is an
updated version of the FT2232C and its lead free version, the FT2232L.
Please note that the FT2232D is not an new generation of device.
The FT2232D is lead free and
pin compatible with the original FT2232C and FT2232L devices. All
the original device features are supported with some additional features
available including a CPU-style FIFO mode and an extended operating
features two multi-purpose UART/FIFO controllers which can be configured
individually in several different modes. As well as a UART
interface, a FIFO interface and the Bit-Bang IO mode of the 2nd
generation FT232B and FT245B devices, the FT2232D offers a variety of
additional new modes of operation including a Multi-Protocol Synchronous
Serial Engine (MPSSE) interface which is designed specifically for
synchronous serial protocols such as I2C, JTAG and SPI bus.