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1 / 44 page Copyright © 2013 Future Technology Devices International Limited 1 FT231X USB TO FULL HANDSHAKE UART IC Datasheet Version 1.2 Document No.: FT_000565 Clearance No.: FTDI# 261 Future Technology Devices International Ltd. FT231X (USB to FULL HANDSHAKE UART IC) The FT231X is a USB to serial UART interface with full modem control and the following advanced features: Single chip USB to asynchronous serial data transfer interface. Entire USB protocol handled on the chip. No USB specific firmware programming required. Fully integrated 2048 byte multi-time- programmable (MTP) memory, storing device descriptors and CBUS I/O configuration. Fully integrated clock generation with no external crystal required plus optional clock output selection enabling glue-less interface to external MCU or FPGA. Data transfer rates from 300 baud to 3 Mbaud (RS422, RS485, and RS232 ) at TTL levels. 512 byte receive buffer and 512 byte transmit buffer utilising buffer smoothing technology to allow for high data throughput. FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases. Configurable CBUS I/O pins. Transmit and receive LED drive signals. UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space no parity Synchronous and asynchronous bit bang interface options with RD# and WR# strobes. USB Battery Charger Detection. Allows for USB peripheral devices to detect the presence of a higher power source to enable improved charging. Device supplied pre-programmed with unique USB serial number. USB Power Configurations; supports bus- powered, self-powered and bus-powered with power switching Integrated +3.3V level converter for USB I/O. True 3.3V CMOS drive output and TTL input; Operates down to 1V8 with external pull-ups. Tolerant of 5V input. Configurable I/O pin output drive strength; 4 mA(min) and 16 mA(max). Integrated power-on-reset circuit. Fully integrated AVCC supply filtering - no external filtering required. UART signal inversion option. + 5V Single Supply Operation. Internal 3V3/1V8 LDO regulators Low operating and USB suspend current; 8mA (active-typ) and 125uA (suspend-typ). UHCI/OHCI/EHCI host controller compatible USB 2.0 Full Speed capable. Extended operating temperature range; -40 to 85⁰C. Available in compact, Pb-free, 20 Pin SSOP and QFN packages (both RoHS compliant). 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, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH United Kingdom. Scotland Registered Company Number: SC136640 |
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