FT4232H 参数 Datasheet PDF下载

Document No.: FT_000060

FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC

Datasheet Version 2.05

Clearance No.: FTDI#78

Table of Contents

1

1.1

1.2

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

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

Part Numbers...................................................................................... 3

Note: Packing codes for xxxx is: ................................................................. 3

1.3

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

2

3

3.1

3.2

3.3

3.4

FT4232H Block Diagram ............................................................... 4

Device Pin Out and Signal Description .......................................... 7

64-Pin LQFP and 64-Pin QFN Package Schematic Symbol ................... 7

FT4232H Pin Descriptions ................................................................... 8

Common Pins .................................................................................... 10

Configured Pins ................................................................................ 12

FT4232H pins used as an asynchronous serial interface .................................................. 12

FT4232H pins used in a Synchronous or Asynchronous Bit-Bang Interface ........................ 13

FT4232H pins used in an MPSSE .................................................................................. 14

3.4.1

3.4.2

3.4.3

4

4.1

4.2

4.3

Function Description................................................................... 15

Key Features ..................................................................................... 15

Functional Block Descriptions ........................................................... 15

FT232 UART Interface Mode Description........................................... 17

RS232 Configuration .................................................................................................. 17

RS422 Configuration .................................................................................................. 18

RS485 Configuration .................................................................................................. 19

4.3.1

4.3.2

4.3.3

4.4

4.5

4.6

MPSSE Interface Mode Description. .................................................. 20

Synchronous and Asynchronous Bit-Bang Interface Mode Description

21

FT4232H Mode Selection................................................................... 23

5

5.1

5.2

Devices Characteristics and Ratings ........................................... 24

Absolute Maximum Ratings............................................................... 24

DC Characteristics............................................................................. 25

6

6.1

6.2

6.3

6.4

FT4232H Configurations ............................................................. 28

USB Bus Powered Configuration ...................................................... 28

USB Self Powered Configuration ....................................................... 30

Oscillator Configuration .................................................................... 32

4 Channel Transmit and Receiver LED Indication Example ............... 33

7

8

8.1

EEPROM Configuration................................................................ 34

Package Parameters ................................................................... 35

FT4232HQ, QFN-64 Package Dimensions .......................................... 36

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