Datasheet FT232R (FTDI) - 5

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FT232R USB UART IC Datasheet Version 2.16
Document No.: FT_000053 Clearance No.: FTDI# 38
Table of Contents 1 Typical Applications ... 2 1.1 Driver Support ... 2 1.2 Part Numbers ... 3 1.3 USB Compliant ... 3 2 FT232R Block Diagram .. 4 3 Device Pin Out and Signal Description ... 7 3.1 28-LD SSOP Package .. 7 3.2 SSOP Package Pin Out Description ... 7 3.3 QFN-32 Package .. 9 3.4 QFN-32 Package Signal Description ... 9 3.5 CBUS Signal Options .. 11 4 Function Description ... 12 4.1 Key Features .. 12 4.2 Functional Block Descriptions .. 13 5 Devices Characteristics and Ratings .. 15 5.1 Absolute Maximum Ratings .. 15 5.2 DC Characteristics .. 15 5.3 EEPROM Reliability Characteristics .. 17 5.4 Internal Clock Characteristics .. 17 5.5 Thermal Characteristics ... 18 6 USB Power Configurations ... 19 6.1 USB Bus Powered Configuration ... 19 6.2 Self Powered Configuration ... 20 6.3 USB Bus Powered with Power Switching Configuration ... 21 6.4 USB Bus Powered with Selectable External Logic Supply ... 22 7 Application Examples .. 24 7.1 USB to RS232 Converter .. 24 7.2 USB to RS485 Converter .. 25 7.3 USB to RS422 Converter .. 26 7.4 USB to MCU UART Interface ... 27
Copyright © Future Technology Devices International Limited 5 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