FT232HL 查看數據表（PDF） - Future Technology

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FT232HL

Single Channel HiSpeed USB to Multipurpose UART/FIFO IC

Future Technology 

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

Copyright © 2012 Future Technology Devices International Limited

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