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1. Features
1.1 Hardware Features
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TTL-232R Converter Cable provides a USB to TTL
Serial header interface (6 way, 0.1” pitch).
On board FT232RQ provides single chip USB to
asynchronous serial data transfer interface.
Entire USB protocol handled on the FT232RQ chip
- No USB-specific firmware programming required.
Connect directly to a microcontroller UART or I/O
pins
UART interface support for 7 or 8 data bits, 1 or 2
stop bits and odd / even / mark / space / no parity.
Fully assisted hardware (RTS#/CTS#) or X-On / X-
Off software handshaking.
Data transfer rates from 300 baud to 3 Megabaud
at TTL levels.
5V CMOS drive outputs and 5V safe TTL inputs
makes the TTL-232R easy to interface to 5V
MCU’s.
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256 byte receive buffer and 128 byte transmit
buffer utilising buffer smoothing technology to allow
for high data throughput.
FIFO receive and transmit buffers for high data
throughput.
Adjustable receive buffer timeout.
Integrated 1024 bit internal EEPROM for storing
custom USB VID, PID, serial number and product
description strings.
Device supplied preprogrammed with unique USB
serial number.
Support for USB suspend and resume.
Cable supply voltage comes from USB - no
external supply required.
5V output allow devices to be powered from the
USB port.
6 way 0.1” header connector (Tx, Rx, RTS#, CTS#,
Vcc, and GND)
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FTDI’s royalty-free VCP allow for communication
as a standard COM port and D2XX ‘direct’ drivers
provide DLL application programming interface.
In-built support for event characters and line break
condition.
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Low USB bandwidth consumption.
UHCI / OHCI / EHCI host controller compatible
USB 2.0 Full Speed compatible.
-40°C to +85°C operating temperature range.
Connect to a PC via USB ‘A’ plug on 1.80 meter (6
foot) cable.
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Support for FT232R FTDIChip-ID™ feature.
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A 3.3V TTL I/O version is also availalable (TTL-
232R-3V3)
Custom versions also available (subject to MOQ).
1.2 Driver Support
Royalty-Free VIRTUAL COM PORT
(VCP) DRIVERS for...
Royalty-Free D2XX Direct Drivers
(USB Drivers + DLL S/W Interface)
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
Windows Vista / Longhorn*
Windows XP 64-bit.
Windows XP Embedded.
Windows CE.NET 4.2 & 5.0
MAC OS 8 / 9, OS-X
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
Windows Vista / Longhorn*
Windows XP 64-bit.
Windows XP Embedded.
Windows CE.NET 4.2 & 5.0
MAC OS OS-X*
Linux 2.4 and greater
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 FTDI website for details.
* Currently Under Development. Contact FTDI for availability.
1.3 Typical Applications
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Replace MAX232 type level shifters allowing for
direct connection of products to PC via USB
USB Instrumentation PC interface
USB Industrial Control
USB Software / Hardware Encryption Dongles
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USB to Serial TTL Level Converter
Upgrading Legacy Peripherals to USB
Interface Microcontroller UART or I/O to USB
Interface FPGA / PLD to USB
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TTL-232R USB to TTL Serial Converter Cable
Datasheet Version 1.0
© Future Technology Devices International Ltd. 2006
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
