FT2232L Dual USB UART / FIFO I.C.
1.0
The FT2232L is the lead free version of FTDI’s 3
rd
generation 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 2
nd
generation FT232BM and FT245BM devices, the
FT2232L 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.
Introduction
1.1
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HARDWARE FEATURES
Features Summary
Reset input and Reset Output pins
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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 Lead Free LQFP package
Windows 98 / 98 SE / 2000 / ME / XP
Linux 2.40 and greater
Windows CE
MAC OS-8 and OS-9**
MAC OS-X
Windows 98 / 98 SE / 2000 / ME / XP
Linux 2.4 and Greater
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
VIRTUAL COM PORT (VCP) DRIVERS for
Single Chip USB
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)
Auto Transmit Enable control for RS485 serial
applications using TXDEN pin
FT245BM-style FIFO interface option with bi-
directional data bus and simple 4 wire handshake
interface
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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 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
DS2232L Version 1.4
D2XX (USB Direct Drivers + DLL S/W Interface)
APPLICATION AREAS
[ ** = In planning or under development ]
© Future Technology Devices International Ltd. 2005 Page 1 of 51
FTDI [ FUTURE TECHNOLOGY DEVICES INTERNATIONAL LTD. ]
