FTDI USB 2.0 to Serial UART Converter, SSOP, 20 Pins

The FTDI USB 2.0 Full Speed integrated circuit offers a compact bridge to full handshake UART interfaces. Capable of operating at data transfer rates of up to 3Mbaud, this device boasts low power consumption with a typical operating current of just 8mA, making it an efficient choice for system designs requiring USB integration via a UART interface.

This single-chip USB to asynchronous serial data transfer interface handles the entire USB protocol on-chip, meaning no USB-specific firmware programming is required. It features a fully integrated 2048-byte EEPROM for storing device descriptors and CBUS I/O configuration, alongside fully integrated clock generation which removes the need for an external crystal, with an optional clock output selection.

Data throughput is optimised via 512-byte transmit and receive buffers utilising buffer smoothing technology. The device also supports royalty-free VCP and D2XX drivers, eliminating the need for USB driver development. Configurable CBUS I/O pins and transmit and receive LED drive signals offer excellent flexibility for hardware design.

The UART interface supports 7 or 8 data bits, 1 or 2 stop bits, and odd, even, mark, space, or no parity. Furthermore, it includes synchronous and asynchronous bit bang interface options with RD# and WR# strobes. Additional features include battery charger detection for faster battery charging, an integrated +3.3V level converter for USB I/O, and true 3.3V CMOS drive output with TTL input. The device is supplied pre-programmed with a unique USB serial number and supports bus-powered, self-powered, and high-power bus-powered USB configurations.