FT232RQ datasheet(5/43 Pages) ETC2

Part #	FT232RQ

Description	Future Technology Devices International Ltd.

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Manufacturer	ETC2 [List of Unclassifed Manufacturers]

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Document No.: FT_000053

FT232R USB UART IC Datasheet Version 2.10

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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