FTDI has strengthened its portfolio of USB interface IC products with the release of the FT232H USB2.0 Hi-Speed device.
This single-channel USB to UART/FIFO interface device can be configured via EEPROM to use a variety of different serial or parallel interfaces. Bundled with FTDI’s USB device drivers, this solution enables engineers to add Hi-Speed USB connectivity into new and legacy peripheral designs. The associated UM232H evaluation module allows engineers to quickly prototype and test the FT232H’s suitability for incorporation into new system designs.
The device controller contains USB, serial and parallel protocol engines, eliminating any requirement for USB specific firmware development. It supports IO interface levels of 3,3 V with 5 V tolerant inputs, making it suitable for connection to a wide variety of logic, MPUs and FPGAs. As well as supporting asynchronous serial (UART) interfacing, the FT232H also supports interface to many synchronous IOs such as SPI, I²C, JTAG and FPGA programming interfaces, via its inbuilt Multi-Protocol Synchronous Serial Engine (MPSSE), which is capable of communication speeds of up to 30 Mbps. In addition, MPSSE can be utilised by design engineers to implement their own synchronous serial bus protocols.
Incorporated as an interface option into the FT232H is the new FT1248 bus – a proprietary, synchronous, half-duplex serial/parallel interface capable of communicating with external logic at data rates of up to 30 MBps. The unusual feature of the FT1248 bus is its ability to trade off bandwidth against the number of physical data lines (one, two, four or eight) available to connect the FT232H to external logic, thus providing design flexibility.
Integrated 1,8 V and 3,3 V low dropout (LDO) voltage regulators reduce external component requirements, while the 1 KByte transmitter and receiver data buffers, coupled with USB 2.0 Hi-Speed technology, offer high data throughput and low-latency response times. Royalty free drivers for Windows, Linux, MAC and WinCE operating systems are available to download from the FTDI website.
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