1. Features
1.1 Hardware Features
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Single chip USB to parallel FIFO bidirectional data
transfer interface.
Entire USB protocol handled on the chip - No
USB-specific firmware programming required.
Simple interface to MCU / PLD / FPGA logic with
simple 4-wire handshake interface.
Data transfer rate to 1 Megabyte / second - D2XX
Direct Drivers.
Data transfer rate to 300 kilobyte / second - VCP
Drivers.
256 byte receive buffer and 128 byte transmit
buffer utilising buffer smoothing technology to allow
for high data throughput.
FTDI’s royalty-free VCP and D2XX drivers
eliminate the requirement for USB driver
development in most cases.
New USB FTDIChip-ID™ feature.
FIFO receive and transmit buffers for high data
throughput.
Adjustable receive buffer timeout.
Synchronous and asynchronous bit bang mode
interface options with RD# and WR# strobes allow
the data bus to be used as a general purpose I/O
port.
Integrated 1024 Bit internal EEPROM for storing
USB VID, PID, serial number and product
description strings.
Device supplied preprogrammed with unique USB
serial number.
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Page 2
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Support for USB suspend / resume through
PWREN# pin and Wake Up pin function.
In-built support for event characters.
Support for bus powered, self powered, and high-
power bus powered USB configurations.
Integrated 3.3V level converter for USB I/O .
Integrated level converter on FIFO interface and
control pins for interfacing to 5V - 1.8V Logic.
True 5V / 3.3V / 2.8V / 1.8V CMOS drive output
and TTL input.
High I/O pin output drive option.
Integrated USB resistors.
Integrated power-on-reset circuit.
Fully integrated clock - no external crystal,
oscillator, or resonator required.
Fully integrated AVCC supply filtering - No separate
AVCC pin and no external R-C filter required.
USB bulk transfer mode.
3.3V to 5.25V Single Supply Operation.
Low operating and USB suspend current.
Low USB bandwidth consumption.
UHCI / OHCI / EHCI host controller compatible
USB 2.0 Full Speed compatible.
-40°C to 85°C extended operating temperature
range.
Available in compact Pb-free 28 Pin SSOP and
QFN-32 packages (both RoHS compliant).
Royalty-Free VIRTUAL COM PORT
(VCP) DRIVERS for...
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
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Windows Vista / Longhorn*
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Windows XP 64-bit.*
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Windows XP Embedded.
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Windows CE.NET 4.2 & 5.0
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MAC OS 8 / 9, OS-X
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Linux 2.4 and greater
1.2 Driver Support
Royalty-Free D2XX
Direct
Drivers
(USB Drivers + DLL S/W Interface)
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
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Windows Vista / Longhorn*
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Windows XP 64-bit.*
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Windows XP Embedded.
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Windows CE.NET 4.2 & 5.0
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Linux 2.4 and greater
The drivers listed above are all available to download for free from the FTDI website. Various 3rd Party Drivers are
also available for various other operating systems - see the
for details.
* Currently Under Development. Contact FTDI for availability.
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Upgrading Legacy Peripherals to USB
Cellular and Cordless Phone USB data transfer
cables and interfaces
Interfacing MCU / PLD / FPGA based designs to
USB
USB Audio and Low Bandwidth Video data transfer
PDA to USB data transfer
USB Smart Card Readers
USB Instrumentation
USB Industrial Control
1.3 Typical Applications
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USB MP3 Player Interface
USB FLASH Card Reader / Writers
Set Top Box PC - USB interface
USB Digital Camera Interface
USB Hardware Modems
USB Wireless Modems
USB Bar Code Readers
USB Software / Hardware Encryption Dongles
FT245R USB UART I.C. Datasheet Version 1.05
© Future Technology Devices International Ltd. 2005
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
