FT2232C Dual USB UART / FIFO I.C.
1.0 Introduction
The FT2232C is the 3rd generation of FTDI’s popular USB UART / FIFO I.C. family. This device features two Multi-
Purpose UART / FIFO controllers which can be configured individually in several different modes. As well as a UART
interface, FIFO interface and Bit-Bang IO modes of the 2nd generation FT232BM and FT245BM devices, the FT2232C
offers a variety of additional new modes of operation, including a Multi-Protocol Synchronous Serial Engine interface
which is designed specifically for synchronous serial protocols such as JTAG and SPI bus.
1.1 Features Summary
HARDWARE FEATURES
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Integrated Power-On-Reset circuit, with optional
Reset input and Reset Output pins
5V and 3.3V logic IO Interfacing with independent
level conversion on each channel
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Single Chip USB ó Dual Channel Serial / Parallel
Ports with a variety of configurations
Entire USB protocol handled on the chip...no USB-
specific firmware programming required
FT232BM-style UART interface option with full
Handshaking & Modem interface signals
UART Interface supports 7 / 8 bit data, 1 / 2 stop
bits, and Odd / Even / Mark / Space / No Parity
Transfer Data Rate 300 to 1 Mega Baud (RS232)
Transfer Data Rate 300 to 3 Mega Baud (TTL and
RS422 / RS485)
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Integrated 3.3V LDO Regulator for USB IO
Integrated 6MHz – 48Mhz clock multiplier PLL
USB Bulk or Isochronous data transfer modes
4.35V to 5.25V single supply operating voltage
range
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UHCI / OHCI / EHCI host controller compatible
USB 2.0 Full Speed (12 Mbits / Second)
compatible
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Compact 48-LD LQFP package
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Auto Transmit Enable control for RS485 serial
applications using TXDEN pin
VIRTUAL COM PORT (VCP) DRIVERS for
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Windows 98 / 98 SE / 2000 / ME / XP
Linux 2.40 and greater
Windows CE **
FT245BM-style FIFO interface option with bi-
directional data bus and simple 4 wire handshake
interface
MAC OS-8 and OS-9**
MAC OS-X**
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Transfer Data Rate up to 1 MegaByte / Second
Enhanced Bit-Bang Mode interface option
New Synchronous Bit-Bang Mode interface option
New CPU-Style FIFO Interface Mode option
New Multi-Protocol Synchronous Serial Engine
(MPSSE) interface option
D2XX (USB Direct Drivers + DLL S/W Interface)
Windows 98 / 98 SE / 2000 / ME / XP
APPLICATION AREAS
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USB óDual Port RS232 Converters
USB ó Dual Port RS422 / RS485 Converters
Upgrading Legacy Peripheral Designs to USB
USB Instrumentation
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New MCU Host Bus Emulation Mode option
New Fast Opto-Isolated Serial Interface Mode
option
USB JTAG Programming
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Interface mode and USB Description strings
configurable in external EEPROM
USB to SPI Bus Interfaces
USB Industrial Control
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EEPROM Configurable on board via USB
Support for USB Suspend and Resume conditions
via PWREN#, and SI / WU pins
Field Upgradable USB Products
Galvanically Isolated Products with USB Interface
•
Support for bus powered, self powered, and high-
power bus powered USB configurations
[ ** = In planning or under development ]
DS2232C Version 1.2
© Future Technology Devices International Ltd. 2004
Page 1 of 54
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