Future Technology Devices International Ltd
USB to RS232 UART Serial Converter PCB
Datasheet
Document Reference No.: FT_000079
Version 1.41
Issue Date: 2011-01-26
Future Technology Devices International Limited (FTDI)
Unit1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH United Kingdom
Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758
E-Mail (Support):
support1@ftdichip.com
Web: http://www.ftdichip.com
Copyright © 2011 Future Technology Devices International Limited
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology
Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your
statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in
which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary
information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit1, 2 Seaward Place, Centurion Business Park,
Glasgow, G41 1HH, United Kingdom. Scotland Registered Number: SC136640
Copyright © 2011 Future Technology Devices International Limited
Document Reference No.: FT_000079
USB TO RS232 UART SERIAL CONVERTER
PCB
Datasheet Version 1.41
Clearance No.: FTDI# 52
1
Description
The
USB-RS232-PCB
is a USB to RS232 level serial UART converter PCB incorporating FTDI’s FT232RQ
USB to Serial UART interface IC device which handles all the USB signalling and protocols. The PCB
provides a fast, simple way to connect devices with a RS232 level serial interface to USB.
Each USB-RS232-PCB contains a small internal electronic circuit board, utilising the FT232R plus a USB
type-A connector. The FT232R datasheet, DS_FT232R, is available at http://www.ftdichip.com. The
integrated electronics also include an RS232 level shifter plus Tx and Rx LEDs which give a visual
indication of UART traffic. All components used, including the FT232R are Pb-free (RoHS compliant).
The PCB is USB powered and USB 2.0 full speed compatible. Each PCB supports a data transfer rate up to
1 Mbaud and supports the FTDIChip-ID™, with a unique USB serial number programmed into the
FT232R. This feature can be used to create a security or password protected file transfer access using the
PCB. Further information and examples on this feature are available at http://www.ftdichip.com under
FTDIChip-ID Projects.
The USB-RS232-PCB requires USB drivers, available free from
http://www.ftdichip.com,
which are
used to make the FT232R on the PCB appear as a virtual COM port (VCP). This then allows the user to
communicate with the USB interface via a standard PC serial emulation port (for example TTY). Another
FTDI USB driver, the D2XX driver, can also be used with application software to directly access the
FT232R on the PCB though a DLL. This is illustrated in the Figure 1.1.
VCP
TTY
USB-RS232-PCB
USB
RS232 UART
SIGNALS
Virtual COM Port
TTY
USB-RS232-PCB
USB
RS232 UART
SIGNALS
D2XX
Software application access to USB via D2XX
Figure 1.1 Using the USB-RS232-PCB
DLL
1.1
Part Number
The following Table 1.1 gives details of the available USB-RS232-PCB.
Part Number
Description
USB-RS232-PCB
USB to RS232 level UART PCB
Table 1.1 USB-RS232-PCB Part Number
Copyright © 2011 Future Technology Devices International Limited
1
Document Reference No.: FT_000079
USB TO RS232 UART SERIAL CONVERTER
PCB
Datasheet Version 1.41
Clearance No.: FTDI# 52
1.2
USB Compliant
The USB-RS232-PCB is fully compliant with the USB 2.0 specification.
Copyright © 2011 Future Technology Devices International Limited
2
Document Reference No.: FT_000079
USB TO RS232 UART SERIAL CONVERTER
PCB
Datasheet Version 1.41
Clearance No.: FTDI# 52
Table of Contents
1
Description ..................................................................................... 1
1.1
1.2
Part Number.................................................................................................. 1
USB Compliant .............................................................................................. 2
The USB-RS232-PCB is fully compliant with the USB 2.0 specification. ................... 2
2
Typical Applications ........................................................................ 4
2.1
2.2
Driver Support .............................................................................................. 4
Features ........................................................................................................ 5
3
4
Features of FT232R applicable to USB-RS232-PCB ......................... 6
USB-RS232-PCB Connector Pin Out and Mechanical details ............ 7
4.1
4.2
4.3
USB-RS232-PCB Signal Descriptions ............................................................. 9
USB-RS232-PCB +5V/+3.3V Selection .......................................................... 9
USB-RS232-PCB Electrical Parameters ........................................................ 10
5
6
USB-RS232-PCB Circuit Schematic ............................................... 11
Contact Information ..................................................................... 12
Appendix A - PCB EEPROM Configuration ........................................... 13
Appendix B - List of Figures and Tables.............................................. 14
Appendix C - Revision History ............................................................ 15
Copyright © 2011 Future Technology Devices International Limited
3
Document Reference No.: FT_000079
USB TO RS232 UART SERIAL CONVERTER
PCB
Datasheet Version 1.41
Clearance No.: FTDI# 52
2
Typical Applications
USB to Serial RS232 Level Converter.
Upgrading Legacy Peripherals to USB.
Interface Microcontroller UART or I/O to USB.
Interface FPGA / PLD to USB.
USB Instrumentation PC interface.
USB Industrial Control.
USB password protected file transfers.
2.1
Driver Support
Royalty free VIRTUAL COM PORT
(VCP) DRIVERS for...
Windows 98, 98SE, ME, 2000, Server 2003, XP
and Server 2008
Windows XP and XP 64-bit
Windows Vista and Vista 64-bit
Windows XP Embedded
Windows CE 4.2, 5.0 and 6.0
Mac OS 8/9, OS-X
Linux 2.4 and greater
Royalty free D2XX
Direct
Drivers
(USB Drivers + DLL S/W Interface)
Windows 98, 98SE, ME, 2000, Server 2003, XP
and Server 2008
Windows XP and XP 64-bit
Windows Vista and Vista 64-bit
Windows XP Embedded
Windows CE 4.2, 5.0 and 6.0
Linux 2.4 and greater
Mac OS-X
The drivers listed above are all available to download for free from
www.ftdichip.com.
Various 3rd
Party Drivers are also available for various other operating systems - see
www.ftdichip.com
for details.
Copyright © 2011 Future Technology Devices International Limited
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