FT245BM Datasheet, PDF (1/24 Pages) Future Technology Devices International Ltd. – USB FIFO ( USB - Parallel ) I.C.

FT245BM USB FIFO ( USB - Parallel ) I.C.
The FT245BM is the 2^nd 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.
1.0 Features
HARDWARE FEATURES
• Single Chip USB  Parallel FIFO bi-directional
• USB VID, PID , Serial Number and Product
Data Transfer
Description strings in external EEPROM
• Transfer Data rate to 1M Byte / Sec - D2XX Drivers • EEPROM programmable on-board via USB
• Transfer Data rate to 300 Kilobyte / Sec - VCP
• Compact 32LD LQFP package
Drivers
VIRTUAL COM PORT (VCP) DRIVERS for
•
Simple to interface to MCU / PLD/ FPGA logic with -
Windows 98 and Windows 98 SE
a 4 wire handshake interface
- Windows 2000 / ME / Server 2003 / XP
• Entire USB protocol handled on-chip… no USB-
- Windows XP 64 Bit
specific firmware programming required
- Windows XP Embedded
• FTDI’s royalty-free VCP and D2XX drivers
- Windows CE 4.2
eliminate the requirement for USB driver
- MAC OS-8 and OS-9
development in most cases.
- MAC OS-X
•
384 Byte FIFO Tx buffer / 128 Byte FIFO Rx Buffer -
Linux 2.40 and greater
for high data throughput.
D2XX (USB Direct Drivers + DLL S/W Interface)
• New Send Immediate support via SI Pin for
- Windows 98 and Windows 98 SE
optimised data throughput.
- Windows 2000 / ME / Server 2003 / XP
• Support for USB Suspend / Resume through
- Windows XP 64 Bit
PWREN# and WAKEUP pins.
- Windows XP Embedded
•
Support for high power USB Bus powered devices -
Windows CE 4.2
through PWREN# pin
- Linux 2.4 and Greater
• Adjustable RX buffer timeout
APPLICATION AREAS
• In-built support for event characters
- Easy MCU / PLD / FPGA interface to USB
• Integrated level converter on FIFO and control
- Upgrading Legacy Peripheral Designs to USB
signals for interfacing to 5V and 3.3V logic
- USB Instrumentation
• Integrated 3.3V regulator for USB IO
- USB Industrial Control
• Integrated Power-On-Reset circuit
- USB Audio and Low Bandwidth Video data transfer
• Integrated 6MHz – 48Mhz clock multiplier PLL
- PDA  USB data transfer
• USB Bulk or Isochronous data transfer modes
- USB MP3 Player Interface
•
New Bit-Bang Mode allows the data bus to be used -
USB FLASH Card Reader / Writers
as an 8 bit general purpose IO Port without the
- Set Top Box (S.T.B.) PC - USB interface
need for MCU or other support logic.
- USB Digital Camera Interface
• 4.35V to 5.25V single supply operation
- USB Hardware Modems
• UHCI / OHCI / EHCI host controller compatible
- USB Wireless Modems
• USB 1.1 and USB 2.0 compatible
DS245B Version 1.7 © Future Technology Devices Intl. Ltd. 2005
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