Dual USB UART / FIFO I.C.

Introduction
The FT2232C is the 3rd generation of FTDI’s popular USB UART / FIFO I.C. family. This device features two MultiPurpose UART / FIFO controllers which can be confgured 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 specifcally for synchronous serial protocols such as JTAG and SPI bus.

FEATUREs Summary
HARDWARE FEATURES
• Single Chip USB <-> Dual Channel Serial / Parallel Ports with a variety of configurations
• Entire USB protocol handled on the chip...no USBspecifc 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)
• Auto Transmit Enable control for RS485 serial applications using TXDEN pin
• FT245BM-style FIFO interface option with bidirectional data bus and simple 4 wire handshake interface
• 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
• New MCU Host Bus Emulation Mode option
• New Fast Opto-Isolated Serial Interface Mode option
• Interface mode and USB Description strings configurable in external EEPROM
• EEPROM Configurable on board via USB
• Support for USB Suspend and Resume conditions via PWREN#, and SI / WU pins
• Support for bus powered, self powered, and high power bus powered USB configurations
• 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
• 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
• UHCI / OHCI / EHCI host controller compatible
• USB 2.0 Full Speed (12 Mbits / Second) compatible
• Compact 48-LD LQFP package

APPLICATION AREAS
• USB <=> Dual Port RS232 Converters
• USB <=> Dual Port RS422 / RS485 Converters
• Upgrading Legacy Peripheral Designs to USB
• USB Instrumentation
• USB JTAG Programming
• USB to SPI Bus Interfaces
• USB Industrial Control
• Field Upgradable USB Products
• Galvanically Isolated Products with USB Interface