Document No.: FT_000053
FT232R USB UART IC Datasheet Version 2.07
Clearance No.: FTDI# 38
Table of Contents
1 Typical Applications ........................................................................ 2
1.1 Driver Support.................................................................................... 2
1.2 Part Numbers...................................................................................... 2
Note: Packing codes for xxxx is:.................................................................. 2
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 ............................................................................... 10
3.4 QFN-32 Package Signal Description.................................................. 10
3.5 CBUS Signal Options ......................................................................... 13
4 Function Description..................................................................... 14
4.1 Key Features..................................................................................... 14
4.2 Functional Block Descriptions........................................................... 15
5 Devices Characteristics and Ratings.............................................. 17
5.1 Absolute Maximum Ratings............................................................... 17
5.2 DC Characteristics............................................................................. 18
5.3 EEPROM Reliability Characteristics ................................................... 21
5.4 Internal Clock Characteristics........................................................... 21
6 USB Power Configurations ............................................................ 23
6.1 USB Bus Powered Configuration ...................................................... 23
6.2 Self Powered Configuration .............................................................. 24
6.3 USB Bus Powered with Power Switching Configuration .................... 25
6.4 USB Bus Powered with Selectable External Logic Supply.................. 26
7 Application Examples.................................................................... 27
7.1 USB to RS232 Converter ................................................................... 27
7.2 USB to RS485 Coverter ..................................................................... 28
7.3 USB to RS422 Converter ................................................................... 29
7.4 USB to MCU UART Interface.............................................................. 30
7.5 LED Interface.................................................................................... 31
7.6 Using the External Oscillator ............................................................ 32
8 Internal EEPROM Configuration .................................................... 33
9 Package Parameters ..................................................................... 35
9.1 SSOP-28 Package Dimensions .......................................................... 35
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