FT232HQ-TRAY datasheet(5/66 Pages) ETC2

Part #	FT232HQ-TRAY

Description	Future Technology Devices International Ltd

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Document No.: FT_000288

FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC

Datasheet Version 1.8

Clearance No.: FTDI #199

Table of Contents

1

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

1.1

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

1.2

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

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

1.3 ............................................................................................................... 3

1.4

Applicable Documents ........................................................................ 3

2

FT232H Block Diagram ................................................................. 4

3

Device Pin Out And Signal Descriptions ........................................ 7

3.1

Schematic Symbol............................................................................... 7

3.2

FT232H Pin Descriptions .................................................................... 8

3.3

Signal Description............................................................................... 9

3.4

ACBUS Signal Option......................................................................... 13

3.5

Pin Configurations ............................................................................ 14

3.5.1

FT232H pins used in an UART interface......................................................................... 14

3.5.2

FT232H pins used in an FT245 Synchronous FIFO Interface............................................. 15

3.5.3

FT232H pins used in an FT245 Style Asynchronous FIFO Interface ................................... 16

3.5.4

FT232H can be configured as a Synchronous or Asynchronous Bit-Bang Interface.............. 17

3.5.5

FT232H pins used in an MPSSE.................................................................................... 18

3.5.6

FT232H Pins used as a Fast Serial Interface .................................................................. 19

3.5.7

FT232H Pins Configured as a CPU-style FIFO Interface ................................................... 20

3.5.8

FT232H Pins Configured as a FT1248 Interface .............................................................. 21

4

Function Description................................................................... 22

4.1

Key Features..................................................................................... 22

4.2

Functional Block Descriptions ........................................................... 23

4.3

FT232 UART Interface Mode Description........................................... 24

4.3.1

RS232 Configuration .................................................................................................. 24

4.3.2

RS422 Configuration .................................................................................................. 25

4.3.3

RS485 Configuration .................................................................................................. 26

4.4

FT245 Synchronous FIFO Interface Mode Description ...................... 27

4.4.1

FT245 Synchronous FIFO Read Operation ..................................................................... 28

4.4.2

FT245 Synchronous FIFO Write Operation..................................................................... 28

4.5

FT245 Style Asynchronous FIFO Interface Mode Description............ 29

4.6

FT1248 Interface Mode Description .................................................. 30

4.6.1

Bus Width Protocol Decode ......................................................................................... 31

4.6.2

FT1248: 1-bit interface............................................................................................... 32

4.7

Synchronous and Asynchronous Bit-Bang Interface Mode ................ 34

4.7.1

Asynchronous Bit-Bang Mode ...................................................................................... 34

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