Datasheet FT232R (FTDI)

FT232R USB UART IC Datasheet Version 2.16
Document No.: FT_000053 Clearance No.: FTDI# 38
Future Technology Devices International Ltd
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FT232R USB UART IC Datasheet
The FT232R is a USB to serial UART interface FIFO receives and transmits buffers for high with the following advanced features: data throughput. Single chip USB to asynchronous serial data Synchronous and asynchronous bit bang transfer interface. interface options with RD# and WR# strobes. Entire USB protocol handled on the chip. No Device supplied pre-programmed with unique USB specific firmware programming required. USB serial number. Fully integrated 1024 bit EEPROM storing Supports bus powered, self-powered and high- device descriptors and CBUS I/O configuration. power bus powered USB configurations. Fully integrated USB termination resistors. Integrated +3.3V level converter for USB I/O. Fully integrated clock generation with no Integrated level converter on UART and CBUS external crystal required plus optional clock for interfacing to between +1.8V and +5V output selection enabling a glue-less interface logic. to external MCU or FPGA. True 5V/3.3V/2.8V/1.8V CMOS drive output Data transfer rates from 300 baud to 3 Mbaud and TTL input. (RS422, RS485, RS232) at TTL levels. Configurable I/O pin output drive strength. 128 byte receive buffer and 256 byte transmit Integrated power-on-reset circuit. buffer utilising buffer smoothing technology to allow for high data throughput. Fully integrated AVCC supply filtering - no external filtering required. FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the UART signal inversion option. requirement for USB driver development in most cases. +3.3V (using external oscillator) to +5.25V (internal oscillator) Single Supply Operation. Unique USB FTDIChip-ID™ feature. Low operating and USB suspend current. Configurable CBUS I/O pins. Low USB bandwidth consumption. Transmit and receive LED drive signals. UHCI/OHCI/EHCI host controller compatible. UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / USB 2.0 Full Speed compatible. no parity -40°C to 85°C extended operating temperature range. Available in compact Pb-free 28 Pin SSOP and QFN-32 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 Copyright © Future Technology Devices International Limited 1 Document Outline 1 Typical Applications 1.1 Driver Support 1.2 Part Numbers 1.3 USB Compliant 2 FT232R Block Diagram 3 Device Pin Out and Signal Description 3.1 28-LD SSOP Package 3.2 SSOP Package Pin Out Description 3.3 QFN-32 Package 3.4 QFN-32 Package Signal Description 3.5 CBUS Signal Options 4 Function Description 4.1 Key Features 4.2 Functional Block Descriptions 5 Devices Characteristics and Ratings 5.1 Absolute Maximum Ratings 5.2 DC Characteristics 5.3 EEPROM Reliability Characteristics 5.4 Internal Clock Characteristics 5.5 Thermal Characteristics 6 USB Power Configurations 6.1 USB Bus Powered Configuration 6.2 Self Powered Configuration 6.3 USB Bus Powered with Power Switching Configuration 6.4 USB Bus Powered with Selectable External Logic Supply 7 Application Examples 7.1 USB to RS232 Converter 7.2 USB to RS485 Converter 7.3 USB to RS422 Converter 7.4 USB to MCU UART Interface 7.5 LED Interface 7.6 Using the External Oscillator 8 Internal EEPROM Configuration 9 Package Parameters 9.1 SSOP-28 Package Dimensions 9.2 QFN-32 Package Dimensions 9.3 Solder Reflow Profile 10 Alternative Parts 11 Contact Information Appendix A – References Document References Acronyms and Abbreviations Appendix B – List of Figures and Tables List of Figures List of Tables Appendix C – Revision History