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