FT245BL,pdf,datasheet,USB FIFO

The FT245BL is the lead free version of the 2nd generation of FTDI’s popular USB FIFO I.C. This device not only adds extra functionality to its FT8U245AM predecessor and reduces external component count, but also maintains a high degree of pin compatibility with the original, making it easy to upgrade or cost reduce existing designs as well as increasing the potential for using the device in new application areas.

HARDWARE FEATURES
• Single Chip USB  Parallel FIFO bi-directional Data Transfer
• Transfer Data rate to 1M Byte / Sec - D2XX Drivers
• Transfer Data rate to 300 Kilobyte / Sec - VCP Drivers
• Simple to interface to MCU / PLD/ FPGA logic with a 4 wire handshake interface
• Entire USB protocol handled on-chip… no USB-specific firmware programming required
• FTDI’s royalty-free VCP and D2XX drivers eliminate the requirement for USB driver development in most cases.
• 384 Byte FIFO Tx buffer / 128 Byte FIFO Rx Buffer for high data throughput.
• New Send Immediate support via SI Pin for optimised data throughput.
• Support for USB Suspend / Resume through PWREN# and WAKEUP pins.
• Support for high power USB Bus powered devices through PWREN# pin
• Adjustable RX buffer timeout
• In-built support for event characters
• Integrated level converter on FIFO and control signals for interfacing to 5V and 3.3V logic
• Integrated 3.3V regulator for USB IO
• Integrated Power-On-Reset circuit
• Integrated 6MHz – 48Mhz clock multiplier PLL
• USB Bulk or Isochronous data transfer modes
• New Bit-Bang Mode allows the data bus to be used as an 8 bit general purpose IO Port without the need for MCU or other support logic.
• 4.35V to 5.25V single supply operation
• UHCI / OHCI / EHCI host controller compatible
• USB 1.1 and USB 2.0 compatible