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FT232BL-TRAY Datasheet(PDF) 4 Page - Future Technology Devices International Ltd. |
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FT232BL-TRAY Datasheet(HTML) 4 Page - Future Technology Devices International Ltd. |
4 / 34 page Copyright © 2011 Future Technology Devices International Limited 4 Document No.: FT_000329 FT232BL /BQ USB UART IC Datasheet Version 2.2 Clearance No.: FTDI# 171 Table of Contents 1 Typical Applications...................................................................... 2 1.1 Driver Support .................................................................................... 2 1.2 Part Numbers...................................................................................... 2 2 FT232B Block Diagram ................................................................. 3 3 Device Pin Out and Signal Description.......................................... 6 3.1 32 Pin LQFP Package .......................................................................... 6 3.2 32 Pin QFN Package............................................................................ 7 3.3 LQFP and QFN Package Pin Out Description........................................ 8 4 Function Description................................................................... 10 4.1 Key Features and Enhancements from FT8U232AM .......................... 10 4.2 Functional Block Descriptions ........................................................... 12 5 Devices Characteristics and Ratings ........................................... 14 5.1 Absolute Maximum Ratings............................................................... 14 5.2 DC Characteristics............................................................................. 15 6 USB Power Configurations.......................................................... 17 6.1 USB Bus Powered Configuration ...................................................... 17 6.2 Self Powered Configuration .............................................................. 18 6.3 Interfacing to 3.3V Logic .................................................................. 19 6.3.1 Bus Powered Circuit with 3.3V logic drive / supply voltage .............................................. 19 6.3.2 Self Powered Circuit with 3.3V logic drive / supply ......................................................... 20 6.4 Bus Powered Circuit (<=100mA) with Power Control....................... 21 7 Device Configuration Examples .................................................. 22 7.1 Oscillator Configurations .................................................................. 22 7.2 EEPROM Configuration ...................................................................... 23 8 UART Interface Configurations ................................................... 24 8.1 USB <=> RS232 Converter Configuration ......................................... 24 8.2 USB <=> RS422 Converter Configuration ......................................... 25 8.3 USB <=> RS485 Converter Configuration ......................................... 26 9 LED Interface Configuration ....................................................... 27 10 Package Parameters................................................................... 28 10.1 LQFP Package Dimension ............................................................... 28 10.2 QFN Package Dimension ................................................................ 29 11 Contact Information ................................................................... 30 Appendix A – References ........................................................................... 31 Appendix B – List of Figures and Tables .................................................... 32 |
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