Datasheet FT232R (FTDI) - 9
| Manufacturer | FTDI |
| Description | USB UART IC |
| Pages / Page | 40 / 9 — FT232R USB UART IC Datasheet. Version 2.16. 3.3 QFN-32 Package. Figure … |
| Revision | 2.16 |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
FT232R USB UART IC Datasheet. Version 2.16. 3.3 QFN-32 Package. Figure 3.2 QFN-32 Package Pin Out and schematic symbol
Model Line for this Datasheet
Text Version of Document
FT232R USB UART IC Datasheet Version 2.16
Document No.: FT_000053 Clearance No.: FTDI# 38
3.3 QFN-32 Package Figure 3.2 QFN-32 Package Pin Out and schematic symbol 3.4 QFN-32 Package Signal Description Name Type Description Pin No.
USB Data Signal Plus, incorporating internal series resistor and 1.5kΩ pull 14 USBDP I/O up resistor to +3.3V. 15 USBDM I/O USB Data Signal Minus, incorporating internal series resistor.
Table 3.5 USB Interface Group Pin No. Name Type Description
+1.8V to +5.25V supply for the UART Interface and CBUS group pins (2,3, 6,7,8,9,10,11,21,22,30,31,32). In USB bus powered designs connect this pin to 3V3OUT to drive out at +3.3V levels, or connect to VCC to drive out 1 VCCIO PWR at +5V CMOS level. This pin can also be supplied with an external +1.8V to +2.8V supply in order to drive out at lower levels. It should be noted that in this case this supply should originate from the same source as the supply to VCC. This means that in bus powered designs a regulator which is supplied by the +5V on the USB bus should be used. 4, 17, GND PWR Device ground supply pins. 20 16 3V3OUT Output +3.3V output from integrated LDO regulator. This pin should be decoupled Copyright © Future Technology Devices International Limited 9 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
Document No.: FT_000053 Clearance No.: FTDI# 38
3.3 QFN-32 Package Figure 3.2 QFN-32 Package Pin Out and schematic symbol 3.4 QFN-32 Package Signal Description Name Type Description Pin No.
USB Data Signal Plus, incorporating internal series resistor and 1.5kΩ pull 14 USBDP I/O up resistor to +3.3V. 15 USBDM I/O USB Data Signal Minus, incorporating internal series resistor.
Table 3.5 USB Interface Group Pin No. Name Type Description
+1.8V to +5.25V supply for the UART Interface and CBUS group pins (2,3, 6,7,8,9,10,11,21,22,30,31,32). In USB bus powered designs connect this pin to 3V3OUT to drive out at +3.3V levels, or connect to VCC to drive out 1 VCCIO PWR at +5V CMOS level. This pin can also be supplied with an external +1.8V to +2.8V supply in order to drive out at lower levels. It should be noted that in this case this supply should originate from the same source as the supply to VCC. This means that in bus powered designs a regulator which is supplied by the +5V on the USB bus should be used. 4, 17, GND PWR Device ground supply pins. 20 16 3V3OUT Output +3.3V output from integrated LDO regulator. This pin should be decoupled Copyright © Future Technology Devices International Limited 9 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
