FT245B - USB Interface Full Speed to Parallel FIFO IC

FTDI's FT245BL is the 2nd generation of popular USB FIFO devices which enables USB conversion to a u-Processor without the hassle.

FT245BL-REEL100 available to buy from our Webshop

This device not only adds extra functionality to its predecessor and reduces external component count, but also maintain a high degree of pin compatibility with the original, making it easy to upgrade or cost-reduce existing designs. The FT245BL makes light work of taking your new (or existing) designs to USB as it runs standalone and therefore requires no processor overhead & no embedded USB stack.

As with all FTDI devices the hard work has been done for you, just design in the chip and choose the royalty-free drivers which suit your application best.

The FT245BL can interface to DSP's and u-Processors to offer typical throughputs of 300K-1Mbit/sec depending on application & driver choice.

Key Features:

  • Single Chip USB <=> parallel FIFO bi-directional data transfer
  • Data transfer rate of up to 1M Byte/second (D2XX drivers)
  • Data transfer rate of up to 300K Byte/second (VCP drivers)
  • Simple to interface to MCU/PLD/FPGA logic with a 4-wire handshaking 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
  • USB 1.1 and USB 2.0 compatible
  • USB VID, PID , serial number and product description strings in external EEPROM
  • Compact 32-LD LQFP package
  • Available as a Lead-free device compliant to EU directive 2002/95/EG RoHS

* The FT245R is recommended for new designs.

Can't quite find what you are looking for?
Why not contact the Alpha Micro Sales Team for your area or visit the product page at www.ftdichip.com

  • Single Chip USB <=> parallel FIFO bi-directional data transfer
  • Data transfer rate of up to 1M Byte/second (D2XX drivers)
  • Data transfer rate of up to 300K Byte/second (VCP drivers)
  • Simple to interface to MCU/PLD/FPGA logic with a 4-wire handshaking 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
  • Built-in 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
  • UHC/OHCI/EHCI host controller compatible
  • USB 1.1 and USB 2.0 compatible
  • USB VID, PID , serial number and product description strings in external EEPROM
  • EEPROM programmable on-board via USB
  • Compact 32-LD LQFP package
  • Available as a Lead-free device compliant to EU directive 2002/95/EG RoHS
  • Easy MCU/PLD/FPGA interface to USB
  • Upgrading legacy peripheral designs to USB
  • USB instrumentation
  • USB industrial control
  • USB audio and low bandwidth video data transfer
  • PDA <=> USB data transfer
  • USB MP3 player interface
  • USB FLASH card readers/writers
  • Set Top Box (S.T.B.) PC - USB interface
  • USB digital camera interface
  • USB hardware modems
  • USB wireless modems
PART NUMBER PACKAGE TYPE PACK SIZE
FT245BL-REEL100 32-pin LQFP Reel of 100
FT245BL-REEL250 32-pin LQFP Reel of 250
FT245BL-REEL500 32-pin LQFP Reel of 500
FT245BL/TR 32-pin LQFP Reel of 1000
FT245BL-TRAY 32-pin LQFP Tray of 250
FT245BQ-REEL No longer offered by FTDI

* The FT245R is recommended for new designs.

Versatile Range of Evaluation Kits UM245R

FTDI evaluation modules and kits represent the quickest way to get USB under your belt, with many allowing you to get up and running in less than 30 minutes. Volume pricing is available which is flexible enough to mean you could embed a module within your design for minimal time-to-market turnaround. Please speak to the Alpha Micro sales team for your area for volume pricing.

Custom PID service
For volume applications Alpha Micro can provide a Product Identifier (PID) under the FTDI "umbrella scheme" that can be used to personalise a design based on the FT232Bx so that your end user will see your product name in the Windows Install Wizard for extra brand awareness.

There is an added benefit that the driver is tagged to your hardware and cannot be used by other devices. This feature can only be used with FTDI chips, the Vendor ID (VID) must remain untouched. Please contact our sales team for more information on this facility.

Customers should use MPROG to program this feature and any other changes to the default settings within the EEPROM (which must be fitted if this feature is required). MPROG is free to use and performs the programming tasks over the USB.

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Last updated: 20 July 2017