FT232RN datasheet(5/40 Pages) FTDI

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FT232RN USB UART IC Datasheet

Version 1.0

Document No.: FT_001521 Clearance No.: FTDI#571

Table of Contents

Typical Applications....................................................... 2

1.1 Driver Support.............................................................................. 2

1.2 Part Numbers ............................................................................... 2

1.3 USB Compliant.............................................................................. 3

FT232RN Block Diagram ................................................ 4

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................................................................... 10

Function Description ................................................... 12

4.1 Key Features .............................................................................. 12

4.2 Functional Block Descriptions..................................................... 13

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

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

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

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