FTDI USB to FIFO Interface IC, SMD, QFN-32

The FTDI USB to FIFO Interface IC simplifies USB to parallel FIFO designs by significantly reducing external component count. It fully integrates an external EEPROM, USB termination resistors, and a clock circuit that requires no external crystal, streamlining your hardware development. Engineered to operate efficiently with a USB host controller, it utilises minimal USB bandwidth while delivering reliable bidirectional data transfer.

This versatile interface IC features FTDI's FTDIChip-ID™ security dongle function, where a unique number is burnt into the device during manufacture and is readable over USB. It supports both asynchronous and synchronous bit bang interface modes, offering flexibility for various applications. With integrated level converters for both USB I/O (3.3V) and FIFO interface and control pins (supporting 5V down to 1.8V logic), it ensures seamless connectivity with modern logic systems.

Key Features

• Single chip USB to parallel FIFO bidirectional data transfer interface
• Entire USB protocol handled on chip; no USB-specific firmware programming required
• Simple 4-wire handshake interface for MCU/PLD/FPGA logic
• Data transfer rates up to 1Mbps (D2XX direct drivers) and 300kbps (VCP drivers)
• Royalty-free virtual com port (VCP) and direct (D2XX) drivers
• 256-byte receive buffer and 128-byte transmit buffer utilising buffer smoothing technology
• Integrated 1024-bit internal EEPROM for storing USB VID, PID, and serial number strings
• Fully integrated clock and AVCC supply filtering, minimising external components
• Support for bus powered, self powered, and high-power bus powered USB configurations

Measuring just 43 mm in height, 33 mm in width, and 15 mm in depth, and weighing only 0.2 grams, this compact IC is ideal for space-constrained designs.