TTL-232R-PCB

Future Technology Devices International Ltd TTL-232R-PCB TTL to USB Serial Converter PCB Datasheet Document Reference No.: FT_000065 Version 1.01 Issue Date: 2010-09-02 Future Technology Devices International Limited (FTDI) Unit 1, 2 Seaward Place, 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 Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or re produced in any material or electronic form without the prior writte n 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, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom. Scotland Registered Number: SC136640 Copyright © 2008 Future Technology Devices International Limited Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 1 Description The TTL-232R-PCB is a USB to TTL 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 TTL level serial interface to USB. Each TTL-232R_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 PCB is RoHS compliant at TTL levels of + 5V or + 3.3V. The PCB is USB powered and USB 2.0 full speed compatible. Each PCB supports a data transfer rate up to 3 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 TTL-232R_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 TTL-232R_PCB USB UART SIGNALS Virtual COM Port TTY TTL-232R_PCB USB UART SIGNALS D2XX Software application access to USB via D2XX Figure 1.1 Using the TTL-232R-PCB Copyright © 2008 Future Technology Devices International Limited DLL 1 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 1.1 Part Number The following Table 1.1 gives details of the available TTL-232R-PCB. Part Number Description TTL-232R-5V-PCB USB to UART PCB with selectable +5V TTL level UART signals. USB to UART PCB with selectable +3.3V TTL level UART signals. TTL-232R-3V3-PCB Table 1.1 TTL-232R-PCB Part Number 1.2 USB Compliant The TTL-232R-PCB is fully compliant with the USB 2.0 specification Copyright © 2008 Future Technology Devices International Limited 2 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 Table of Contents 1 Description ..................................................................................... 1 1.1 1.2 Part Number.................................................................................................. 2 USB Compliant .............................................................................................. 2 2 Typical Applications ........................................................................ 4 2.1 2.2 Driver Support .............................................................................................. 4 Features ........................................................................................................ 5 3 4 Features of FT232R applicable to TTL-232R PCB ............................ 6 TTL-232R-PCB Connector Pin Out and Mechanical details ............... 8 4.1 4.2 4.3 TTL-232R-PCB Signal Descriptions ................................................................ 9 TTL-232R-PCB +5V/+3.3V Selection ............................................................. 9 TTL-232R-PCB Electrical Parameters ............................................................. 9 5 6 TTL-232R-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 © 2008 Future Technology Devices International Limited 3 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 2 Typical Applications USB to Serial TTL Level Converter Upgrading Legacy Peripherals to USB Interface Microcontroller UART or I/O to USB Interface FPGA / PLD to USB 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 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 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 © 2008 Future Technology Devices International Limited 4 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 2.2 Features TTL-232R_PCB provides a USB to TTL Serial UART interface. On board FT232RQ provides single chip USB to asynchronous serial data transfer interface. Entire USB protocol handled by the electronics on the PCB. 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 Mbaud at TTL levels. Internal EEPROM with user writeable area. Selectable +3.3V or +5V CMOS drive outputs and 5V safe TTL inputs makes the TTL232R_PCB easy to interface to 5V MCU’s. FTDI’s royalty-free VCP allow for communication as a standard emulated COM port and D2XX ‘direct’ drivers provide DLL application programming interface. Support for FT232R FTDIChip-ID™ feature for improved security. PCB is USB Powered - no external supply required. +5V or +3.3V output allows external logic to be powered from the USB port. 6 outputs provide Tx, Rx, RTS#, CTS#, VCC and GND. Low USB bandwidth consumption. UHCI / OHCI / EHCI host controller compatible. USB 2.0 Full Speed compatible. -40°C to +85°C operating temperature range. Copyright © 2008 Future Technology Devices International Limited 5 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 3 Features of FT232R applicable to TTL-232R PCB The TTL-232R_PCB uses FTDI’s FT232RQ USB to serial IC device. This section summarises the key features of the FT232RQ which apply to the TTL-232R_PCB USB to serial TTL converter. For further details, and a full features and enhancements description consult the FT232R datasheet, this is available from www.ftdichip.com. Internal EEPROM. The internal EEPROM is used to store USB Vendor ID (VID), Product ID (PID), device serial number, product description string and various other USB configuration descriptors. Each FT232RQ is supplied with the internal EEPROM pre-programmed as described in Contact Information Head Office – Glasgow, UK Future Technology Devices International Limited Unit 1, 2 Seaward Place, 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.com Branch Office – Taipei, Taiwan Future Technology Devices International Limited (Taiwan) 2F, No. 516, Sec. 1, NeiHu Road Taipei 114 Taiwan , R.O.C. Tel: +886 (0) 2 8797 1330 Fax: +886 (0) 2 8751 9737 E-mail (Sales) tw.sales1@ftdichip.com E-mail (Support) tw.support1@ftdichip.com E-mail (General Enquiries) tw.admin1@ftdichip.com Web Site URL http://www.ftdichip.com Branch Office – Hillsboro, Oregon, USA Future Technology Devices International Limited (USA) 7235 NW Evergreen Parkway, Suite 600 Hillsboro, OR 97123-5803 USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-Mail (Sales) E-Mail (Support) E-Mail (General Enquiries) Web Site URL us.sales@ftdichip.com us.support@ftdichip.com us.admin@ftdichip.com http://www.ftdichip.com Branch Office – Shanghai, China Future Technology Devices International Limited (China) Room 408, 317 Xianxia Road, ChangNing District, ShangHai, China Tel: +86 (21) 62351596 Fax: +86(21) 62351595 E-Mail (Sales): cn.sales@ftdichip.com Copyright © 2008 Future Technology Devices International Limited 6 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 E-Mail (Support): cn.support@ftdichip.com E-Mail (General Enquiries): cn.admin1@ftdichip.com Web Site URL: http://www.ftdichip.com 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. Appendix A - PCB EEPROM Configuration. A user area of the internal EEPROM is available to system designers to allow storing additional data. The internal EEPROM descriptors can be programmed in circuit, over USB without any additional voltage requirement. It can be programmed using the FTDI utility software called FT_PROG, which can be downloaded from FTDI Utilities on the FTDI website (www.ftdichip.com). Lower Operating and Suspend Current. The FT232R has a low 15mA operating supply current and a very low USB suspend current of approximately 70μA. Low USB Bandwidth Consumption. The USB interface of the FT232R, and therefore the TTL-232R_PCB has been designed to use as little as possible of the total USB bandwidth available from the USB host controller. High Output Drive Option. The UART interface I/O pins on the TTL-232R_PCB (RXD, TXD, RTS#, and CTS#) can be configured to use the FT232R’s high output drive option. This option allows the FT232R I/O pins to drive up to three times the standard signal drive level. This allows multiple devices to be driven, or devices that require a greater signal drive strength to be interfaced on the PCB. This option is enabled in the internal EEPROM. UART Pin Signal Inversion. The sense of each of the UART signals can be individually inverted by configuring options in the internal EEPROM. For example CTS# (active low) can be changed to CTS (active high), or TXD can be changed to TXD#. FTDIChip-ID™. The FT232R includes the new FTDIChip-ID™ security dongle feature. This FTDIChip-ID™ feature allows a unique number to be burnt into each FT_232RQ during manufacture. This number cannot be reprogrammed. This number is only readable over USB can be used to form the basis of a security dongle which can be used to protect any customer application software being copied. This allows the possibility of using the TTL-232R_PCB as a dongle for software licensing. Further to this, a renewable license scheme can be implemented based on the FTDIChip-ID™ number when encrypted with other information. This encrypted number can be stored in the user area of the FT232R internal EEPROM, and can be decrypted, then compared with the protected FTDIChip-ID™ to verify that a license is valid. Web based applications can be used to maintain product licensing this way. An applicati on note, AN232R-02, available from FTDI website (www.ftdichip.com) describes this feature. Extended Operating Temperature Range - The TTL-232R_PCB is capable of operating over an extended temperature range of -40º to +85ºC thus allowing it to be used in automotive or industrial applications. Copyright © 2008 Future Technology Devices International Limited 7 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 4 TTL-232R-PCB Connector Pin Out and Mechanical details Figure 4.1 TTL-232R-PCB Pin Out (Top is TOP View, Bottom is BOTTOM View) The mechanical details of the PCB are shown in the following diagram Figure 4.2 24.9 +/- 0.4 11.85 +/- 0.35 1.6 11.85 +/- 0.35 40.1 +/- 0.2 4.5 +/- 0.01 18.8 +/- 0.2 Dimensions in mm Figure 4.2 TTL-232R TTL-232R-PCB, Mechanical Details 4.9 +/- 0.1 Copyright © 2008 Future Technology Devices International Limited 8 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 4.1 TTL-232R-PCB Signal Descriptions Name GND CTS# VCC TXD RXD RTS# Type GND Input Output Output Input Output Description Device ground supply pin. Clear to Send Control input / Handshake signal. +5V output, Transmit Asynchronous Data output. Receive Asynchronous Data input. Request To Send Control Output / Handshake signal. Table 4.1 TTL-232R-PCB Signal Descriptions 4.2 TTL-232R-PCB +5V/+3.3V Selection Selection of whether the UART signal are +3.3V levels or +5V levels is done using resistors. The following table gives details of what resistors are required for the two different voltage levels. Note that the VCC output signal will always drive at +5V. Resistor R1 Fitted Not Fitted Resistor R2 Not Fitted Fitted Description UART signals are +5V level signals UART signals are +3.3V level signals Table 4.2 UART Signal Level Selection 4.3 TTL-232R-PCB Electrical Parameters Parameter Description Minimum Typical Maximum Units Conditions Dependant on the USB VCC Output Power Voltage 4.25 5.0 5.25 V port that the TTL-232RPCB is connected to IO T Output Power Current Operating Temperature Range -40 75 +85 mA o C Table 4.3 TTL-232R-PCB I/O Operating Parameters Parameter Voh Vol Vin VHys Description Output Voltage High Output Voltage Low Input Switching Threshold Input Switching Hysteresis Minimum 3.2 0.3 1.0 20 Typical 4.1 0.4 1.2 25 Maximum 4.9 0.6 1.5 30 Units V V V mV Conditions I source = 6mA I sink = 6mA Table 4.4 TTL-232R-PCB I/O Pin Characteristics (+5V level signals) Copyright © 2008 Future Technology Devices International Limited 9 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 Parameter Voh Vol Vin VHys Description Output Voltage High Output Voltage Low Input Switching Threshold Input Switching Hysteresis Minimum 2.2 0.3 1.0 20 Typical 2.8 0.4 1.2 25 Maximum 3.2 0.6 1.5 30 Units V V V mV Conditions I source = 3mA I sink = 8mA Table 4.5 TTL-232R-PCB I/O Pin Characteristics (+3.3V level signals) Copyright © 2008 Future Technology Devices International Limited 10 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 5 TTL-232R-PCB Circuit Schematic The circuit schematic of the TTL-232R-PCB, utilising the FTDI FT232R, is shown in Figure 5.1 PULL UP RESISTORS NOT FITTED INTERNAL IO VOLTAGE SELECTION VCC-IO USB “A” PLUG Figure 5.1 Circuit Schematic of TTL-232R-PCB. GND Copyright © 2008 Future Technology Devices International Limited 5 1 4 47pF x 2 14 4 17 20 24 26 32 8 CTS# 2 RXD 3 USB-DP 15 2 USB-DM 10nF 18 RTS# CTS# RXD TXD VCC-3V3 4.7uF + 100nF VCCIO VCC FB 1 19 VCC-IO VCC FT232RQ 16 30 270R RTS# 270R TXD 100nF VCC-3V3 11 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 6 Contact Information Head Office – Glasgow, UK Future Technology Devices International Limited Unit 1, 2 Seaward Place, 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.com Branch Office – Taipei, Taiwan Future Technology Devices International Limited (Taiwan) 2F, No. 516, Sec. 1, NeiHu Road Taipei 114 Taiwan , R.O.C. Tel: +886 (0) 2 8797 1330 Fax: +886 (0) 2 8751 9737 E-mail (Sales) tw.sales1@ftdichip.com E-mail (Support) tw.support1@ftdichip.com E-mail (General Enquiries) tw.admin1@ftdichip.com Web Site URL http://www.ftdichip.com Branch Office – Hillsboro, Oregon, USA Future Technology Devices International Limited (USA) 7235 NW Evergreen Parkway, Suite 600 Hillsboro, OR 97123-5803 USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-Mail (Sales) E-Mail (Support) E-Mail (General Enquiries) Web Site URL us.sales@ftdichip.com us.support@ftdichip.com us.admin@ftdichip.com http://www.ftdichip.com Branch Office – Shanghai, China Future Technology Devices International Limited (China) Room 408, 317 Xianxia Road, ChangNing District, ShangHai, China Tel: +86 (21) 62351596 Fax: +86(21) 62351595 E-Mail (Sales): cn.sales@ftdichip.com E-Mail (Support): cn.support@ftdichip.com E-Mail (General Enquiries): cn.admin1@ftdichip.com Web Site URL: http://www.ftdichip.com 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. Copyright © 2008 Future Technology Devices International Limited 12 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 Appendix A - PCB EEPROM Configuration Each TTL-232R-PCB is controlled by the FTDI FT232R IC. This FT232R device contains an EEPROM which contains the USB configuration descriptors for that device. When the PCB is plugged into a PC or a USB reset is performed, the PC will read these descriptors. The default values stored into the internal EEPROM are defined in Table 0.1 Default Internal EEPROM Configuration Parameter USB Vendor ID (VID) USB Product UD (PID) Serial Number Enabled? Serial Number Pull down I/O Pins in USB Suspend Manufacturer Name Product Description Max Bus Power Current Power Source Device Type Value 0403h 6001h Yes See Note Disabled FTDI See note 90mA Bus Powered FT232R TTL-232R-PCB FTDI default VID (hex) FTDI default PID (hex) Notes A unique serial number is generated and programmed into the EEPROM during device final test. Enabling this option will make the device pull down on the UART interface lines when the power is shut off (PWREN# is high). USB Version 0200 Returns USB 2.0 device description to the host. Note: The device is be a USB 2.0 Full Speed device (12Mb/s) as opposed to a USB 2.0 High Speed device (480Mb/s). Remote Wake Up High Current I/Os Load VCP Driver Invert TXD Invert RXD Invert RTS# Invert CTS# Disabled Enabled Enabled Disabled Disabled Disabled Disabled Enables the high drive level on the UART and CBUS I/O pins. Makes the device load the VCP driver interface for the device. Signal on this pin becomes TXD# if enable. Signal on this pin becomes RXD# if enable. Signal on this pin becomes RTS if enable. Signal on this pin becomes CTS if enable. Table 0.1 Default Internal EEPROM Configuration The internal EEPROM on the PCB can be re-programmed over USB using the utility program FT_PROG. FT_PROG can be downloaded from the www.ftdichip.com. Version 2.8a or later is required for the FT232R chip. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in their design can apply to FTDI for a free block of unique PIDs. Contact FTDI support for this service. Copyright © 2008 Future Technology Devices International Limited 13 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 Appendix B - List of Figures and Tables List of Figures Figure 1.1 Using the TTL-232R-PCB .............................................................................................................. 1 Figure 4.1 TTL-232R-PCB Pin Out (Top is TOP View, Bottom is BOTTOM View) ..................................... 8 Figure 4.2 TTL-232R TTL-232R-PCB, Mechanical Details............................................................................ 8 Figure 5.1 Circuit Schematic of TTL-232R-PCB. ........................................................................................ 11 List of Tables Table 1.1 TTL-232R-PCB Part Number .......................................................................................................... 2 Table 4.1 TTL-232R-PCB Signal Descriptions .............................................................................................. 9 Table 4.2 UART Signal Level Selection ......................................................................................................... 9 Table 4.3 TTL-232R-PCB I/O Operating Parameters .................................................................................... 9 Table 4.4 TTL-232R-PCB I/O Pin Characteristics (+5V level signals) ......................................................... 9 Table 4.5 TTL-232R-PCB I/O Pin Characteristics (+3.3V level signals) .................................................... 10 Table 0.1 Default Internal EEPROM Configuration ..................................................................................... 13 Copyright © 2008 Future Technology Devices International Limited 14 Document Reference No.: FT_000065 TTL-232R-PCB TTL TO USB SERIAL CONVERTER PCB Datasheet Version 1.01 Clearance No.: FTDI# 54 Appendix C - Revision History Version 1.00 First Release Added RoHS compliant statement in section 1 Added section 1.2 USB Compliant Logo Updated Contact details Replaced reference MProg with FT_Prog 8th August 2008 2nd September 2010 Version 1.01 Copyright © 2008 Future Technology Devices International Limited 15