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Future Technology Devices International Ltd (FTDI)

Unit 1, 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

Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees to

defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting from such

use.

Future Technology Devices International Ltd

The DB9-USB Family of USB to

UART Converter Modules

Datasheet

Document Reference No.: FT_000204

Version 2.1

Issue Date: 2011-10-04

Summary of content (26 pages)

PAGE 1
Future Technology Devices International Ltd The DB9-USB Family of USB to UART Converter Modules Datasheet Document Reference No.: FT_000204 Version 2.1 Issue Date: 2011-10-04 Future Technology Devices International Ltd (FTDI) Unit 1, 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.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 1 Introduction 1.1 The DB9-USB Family of UART Converter Modules The DB9-USB connector modules can be used to upgrade an RS232 port to an active USB port. In some cases this can be done without the need to redesign the PCB. In some cases they can reduce system costs by removing an RS232 level shifter from a design. The DB9-USB family consist of 6 modules.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Figure 1.1 – DB9-USB Family DB9-USB modules use a standard USB-MINI-B connector for connection to an upstream host or hub port. RS232 Level: RS232 level signals, includes modem handshake signals, and capable of transmitting data at rates up to 1 Mega Baud. Digital Voltage Level: 3.3V or 5V level signals, includes modem handshake signals, and capable of transmitting data at rates up to 3 Mega Baud.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 1.4 Block Diagrams DB9 Module DB9 Module USB Mini B Client Connector FTDI FT232R USB Serial Bridge RS232 Level Shifter DB9 PCB Decal Figure 1.2 – DB9-USB RS232 Level Block Diagram DB9 Module DB9 Module VIO 3.3V VIO 3.3V 3V3OUT 3V3OUT FTDI FTDI FT232R USB FT232R USB Serial Bridge Serial Bridge USB Mini B Client Connector 3.3V TTL/CMOS 3.3V TTL/CMOS UART UART DB9 PCB Decal Figure 1.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 DB9-USB PCB Footprint The DB9-USB pin-out is configured to match the industry standard DB9 footprint. See section 3.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 1.5 Features Adds one USB serial port by connecting to the RS232 DB9 footprint of a device Easy placement for an standard Male and Female RS232 DB9 footprint of a device A selection of RS232, 3.3V or 5V UART signal levels. Works with USB 1.1 & 2.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 1.6 Technical Specification & Ordering Information Parameter Performance USB Interface 12Mbps USB 2.0 Full-Speed RS232 Interface Standard Windows baud rates (300bps to 921.6Kbps) Custom baud rates (300bps to 1Mbps) through baud rate aliasing. See FTDI Application Note: Configuring FT232R, FT2232 and FT232BM Baud Rates UART Standard Windows baud rates (300bps to 921.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Table of Contents: 1 Introduction ................................................................................... 1 1.1 The DB9-USB Family of UART Converter Modules .......................................... 1 1.2 Functional Description .................................................................................. 1 1.3 Background ...........................................................................
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 2 USB Connections DB9-USB modules are downstream USB 2.0 Devices. A “USB mini B” receptacle is mounted inside the modules to facilitate connection to an upstream USB Host or Hub.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 3 UART Connections The PC compatible accepted electrical connections for male and female UART DB9 connectors are illustrated in Figure 3.1 where the structure on the left is the top view of a male UART DB9 connector and the structure on the right is the top view of a female UART DB9 connector.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 DCD DSR RXD RTS TXD CTS DTR RI GND DB9 Pin1 DB9 Pin6 DB9 Pin2 DB9 Pin7 DB9 Pin3 DB9 Pin8 DB9 Pin4 DB9 Pin9 DB9 Pin5 DCD DSR RXD RTS TXD CTS DTR RI GND Figure 3.2 – DB9-USB Male Connection illustration GND RI DTR CTS TXD RTS RXD DSR DCD DB9 Pin5 DB9 Pin9 DB9 Pin4 DB9 Pin8 DB9 Pin3 DB9 Pin7 DB9 Pin2 DB9 Pin6 DB9 Pin1 RI RTS CTS DTR GND DSR RXD TXD DCD Figure 3.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 3.1.1 Male DB9 UART Connector Signals The DB9-USB-X-M can be used to replace a male DB9 connector used for transmitting UART signals. Table 2.1 gives the pin out description of each pin/pad of a UART connector/footprint.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 3.1.2 Female DB9 UART Connector Signals The DB9-USB-X-F can be used to replace a female DB9 connector used for transmitting UART signals. Table 2.2 gives the pin out description of each pin/pad of an UART connector/footprint.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 4 Installation 4.1 Device Driver Installation The drivers for the DB9-USB modules are available for download from: www.ftdichip.com The following section illustrates an example installation on the Windows OS. 4.1.1 Microsoft Windows Installation With the device drivers being Windows Hardware Quality Labs (WHQL) certified, they are also available through download directly from the Microsoft® Windows® Update service.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 4) The following screen appears: Figure 3.3 – Automatic Install 5) Wait while the driver is found, downloaded, and installed. This step may take a couple minutes depending on the Internet speed. 6) After the files are found and installed, click “Finish” to complete the installation. Figure 3.4 – Complete Hardware Installation 7) Steps 2 through 6 will repeat.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 COM Port Assignment Next, to determine which COM port has been assigned, open the Windows Device Manager from the System Control Panel. Figure 3.6 – Device Manager Click on the Plus “+” sign next to the Ports tree to list the available COM port. You will see “USB Serial Port”, followed by a COM assignment. In the figure below, the DB9-USB module is assigned to COM3. Figure 3.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Figure 3.8 – Access COM Port Properties Next, click on the “Port Settings” tab. Figure 3.9 – Settings Tab Then click on the “Advanced…” button.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Figure 3.10 – Advanced Options This will display the various advanced settings. Note the COM port assignment in the upper left. Clicking on the drop-down list will display the available port numbers. Select one that is not in use and click OK on each dialog box to activate the selection. Windows will remember this COM port number. 4.1.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 5 Electrical details 5.1 USB Parameter Description Minimum Typical Maximum Units Conditions *Present when USB USB_VCC Input Power Voltage* 4.25 5.0* 5.25 V cable is attached and USB Host or Hub powered. Icc USB current 30 50 mA Table 5.1 – USB Electrical Details 5.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 6 Mechanical Details Figure 5.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 7 Physical Environment Details 7.1 Storage Parameter T Description Storage Temperature Range Minimum Typical -65 Maximum +85 Units Conditions o C Table 7.1 – Storage Temperature 7.2 Operating Parameter T Description Operating Temperature Range Minimum –40 Typical Maximum +85 Units o C Conditions 5% to 95% RH, non condensing Table 7.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 8 Environmental Approvals & Declarations 8.1 EMI Compatibility FCC and CE DB9-USB modules are certified for both FCC Part 15 Subpart B and European EMC Directive. NOTE: This is a Class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 8.5 Import / Export Information Import / Export Information Country of Origin Harmonized Code China 8.5.1.1 8471.80.4000 Product Description USB to Connector Adapter, Single Port USA ECCN EAR99 – No License Required Table 8.1 – Import / Export Information 9 Troubleshooting Ensure the latest device driver is in use. See www.ftdichip.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 10 Contact Information Head Office – Glasgow, UK Future Technology Devices International Limited Unit 1, 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 (Sales) sales1@ftdichip.com E-mail (Support) support1@ftdichip.com E-mail (General Enquiries) admin1@ftdichip.com Web Site URL http://www.ftdichip.com Web Shop URL http://www.ftdichip.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Distributor and Sales Representatives Please visit the Sales Network page of the FTDI Web site for the contact details of our distributor(s) and sales representative(s) in your country.
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Document Reference No.: FT_000204 DB9-USB Datasheet Version 2.1 Clearance No.: FTDI# 130 Appendix A – References AN_149_Upgrading a DB9 RS232 Interface to USB using an FTDI DB9-USB-RS232 Module Appendix B – Revision History Version Draft First Draft October 2009 Version 1.0 First release 18th November 2009 Version 1.1 Updated part numbers 19th February 2010 Version 1.2 Added Figures 2.2 and 2.4. Updated tables 2.2 and 2.3 1st June 2010 Added note 1 to Table 2.2 Version 1.