1. Features
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Single chip USB to asynchronous serial data
transfer interface.
Entire USB protocol handled on the chip - No
USB-specific firmware programming required.
UART interface support for 7 or 8 data bits, 1 or 2
stop bits and odd / even / mark / space / no parity.
Fully assisted hardware or X-On / X-Off software
handshaking.
Data transfer rates from 300 baud to 3 Megabaud
(RS422 / RS485 and at TTL levels) and 300 baud
to 1 Megabaud (RS232).
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.
In-built support for event characters and line break
condition.
New USB FTDIChip-ID™ feature.
New configurable CBUS I/O pins.
Auto transmit buffer control for RS485 applications.
Transmit and receive LED drive signals.
New 48MHz, 24MHz,12MHz, and 6MHz clock
output signal Options for driving external MCU or
FPGA.
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.
New CBUS bit bang mode option.
Page 2
1.1 Hardware Features
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Integrated 1024 Bit internal EEPROM for storing
USB VID, PID, serial number and product
description strings, and CBUS I/O configuration.
Device supplied preprogrammed with unique USB
serial number.
Support for USB suspend and resume.
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 UART and CBUS 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.
UART signal inversion option.
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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USB to RS232 / RS422 / RS485 Converters
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
1.3 Typical Applications
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USB Industrial Control
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
FT232R USB UART I.C. Datasheet Version 1.04
© Future Technology Devices International Ltd. 2005
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
