Document No.: FT_000061
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 2.09
Clearance No.: FTDI#77
Table of Contents
1
Typical Applications...................................................................... 2
1.1 Driver Support.................................................................................... 2
1.2 Part Numbers...................................................................................... 3
1.3 USB Compliant.................................................................................... 3
FT2232H Block Diagram ............................................................... 4
Device Pin Out and Signal Description.......................................... 7
3.1 64-Pin LQFP and 64-Pin QFN Package Schematic Symbol................... 7
3.2 FT2232H Pin Descriptions................................................................... 8
3.3 Common Pins...................................................................................... 9
2
3
3.4 Configured Pins ................................................................................ 11
3.4.1 FT2232H pins used in an RS232 interface ..................................................................... 11
3.4.2 FT2232H pins used in an FT245 Style Synchronous FIFO Interface................................... 12
3.4.3 FT2232H pins used in an FT245 Style Asynchronous FIFO Interface ................................. 13
3.4.4 FT2232H pins used in a Synchronous or Asynchronous Bit-Bang Interface ........................ 14
3.4.5 FT2232H pins used in an MPSSE.................................................................................. 15
3.4.6 FT2232H Pins used as a Fast Serial Interface ................................................................ 16
3.4.7 FT2232H Pins Configured as a CPU-style FIFO Interface ................................................. 17
3.4.8 FT2232H Pins Configured as a Host Bus Emulation Interface ........................................... 18
4
Function Description................................................................... 19
4.1 Key Features..................................................................................... 19
4.2 Functional Block Descriptions........................................................... 19
4.3 Dual Port FT232 UART Interface Mode Description........................... 21
4.3.1 Dual Port RS232 Configuration .................................................................................... 21
4.3.2 Dual Port RS422 Configuration .................................................................................... 22
4.3.3 Dual Port RS485 Configuration .................................................................................... 23
4.4 FT245 Synchronous FIFO Interface Mode Description ...................... 24
4.4.1 FT245 Synchronous FIFO Read Operation ..................................................................... 25
4.4.2 FT245 Synchronous FIFO Write Operation..................................................................... 25
4.5 FT245 Asynchronous FIFO Interface Mode Description..................... 26
4.6 MPSSE Interface Mode Description................................................... 28
4.6.1 MPSSE Adaptive Clocking............................................................................................ 29
4.7 MCU Host Bus Emulation Mode ......................................................... 30
4.7.1 MCU Host Bus Emulation Mode Signal Timing – Write Cycle............................................. 31
4.7.2 MCU Host Bus Emulation Mode Signal Timing – Read Cycle............................................. 32
4.8 Fast Opto-Isolated Serial Interface Mode Description ...................... 34
4.8.1 Outgoing Fast Serial Data ........................................................................................... 35
4.8.2 Incoming Fast Serial Data........................................................................................... 35
Copyright © 2010 Future Technology Devices International Limited
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