UMFT231XA Datasheet Version 1.3 Document Reference No.: FT 000512 C learance No.: FTDI 270 Future Technology Devices International Datasheet UMFT231XA USB to Full- Handshake UART Development Module UMFT231XA is a USB to serial Full-Handshake UART DIP module with a 0.3 row pitch. 1.1 Features 1 Introduction The UMFT231XA is a development module for FTDIs The UMFT231XA is fitted with a FT231XQ, all the FT231XQ, one of the devices from FTDIs range of features of the FT231X can be utilized with the USB interface bridging integrated circuit devices. UMFT231XA. For a full list of the FT231Xs features FT231X is a USB to UART interface with a battery please see the FT231X datasheet which can be found charger detection feature, which can allow batteries at the FTDI website. to be charged with a higher current from a In addition to the features listed in the FT231X dedicated charger port (without the FT231X being datasheet, the UMFT231XA has the following features: enumerated). In addition, asynchronous and synchronous bit bang interface modes are available. Small PCB assembly module designed to fit a The internally generated clock (6MHz, 12MHz and standard 7.62mm (0.3) wide 20 pin DIP socket. 24MHz) can be brought out of the on one of the Pins are on a 2.54mm (0.1) pitch. CBUS pin to be used to drive a microprocessor or external logic. On board USB mini-B socket allows module to be connected to a PC via a standard A to mini-B USB The UMFT231XA is a module which is designed to cable. plug into a standard 0.3 wide 20 pin DIP socket. All components used, including the FT231XQ are Pb- Functionally configurable using solder links. The free (RoHS compliant). default solder links setup enables the module to function without peripheral wires or application board. Other configurations enable external power supply options and variation of logic reference levels. 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 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. 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Scotland Registered Number: SC136640 Copyright Future Technology Devices International Limited UMFT231XA Datasheet Version 1.3 Document Reference No.: FT 000512 C learance No.: FTDI 270 Table of Contents 1 Introduction ................................................................. 1 1.1 Features ................................................................................ 1 2 Driver Support .............................................................. 3 3 Ordering Information & TID .......................................... 4 4 UMFT231XA Signals and Configurations ......................... 5 4.1 UMFT231XA Pin Out ............................................................... 5 4.2 Signal Descriptions ................................................................ 6 4.3 CBUS Signal Options............................................................... 7 5 Module Configurations .................................................. 8 5.1 Solder Link Configuration Options........................................... 8 5.2 Solder Link Modifications........................................................ 8 5.3 Bus Powered Configuration .................................................... 9 5.4 Self Powered Configuration ...................................................10 5.5 USB Bus Powered with Power Switching Configuration ...........11 5.6 Variable IO Voltage Supply ....................................................12 5.7 3.3V Voltage Supply ..............................................................13 5.8 Configuring the MTP ROM ......................................................14 5.9 Module Dimensions ...............................................................14 5.10 IC Package Markings .............................................................15 6 UMFT231XA Module Circuit Schematic ......................... 16 7 Internal MTP ROM Configuration.................................. 17 8 Contact Information .................................................... 18 Appendix A References ................................................. 19 Document References ...................................................................19 Acronyms and Abbreviations .........................................................19 Appendix B - List of Figures and Tables ............................ 20 List of Figures ...............................................................................20 List of Tables ................................................................................20 Appendix C Revision History.......................................... 21 Copyright Future Technology Devices International Limited 2