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FTDI - Dual USB UART / FIFO I.C

Numéro de référence FT2232L
Description Dual USB UART / FIFO I.C
Fabricant FTDI 
Logo FTDI 





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FT2232L fiche technique
FT2232L Dual USB UART / FIFO I.C.
1.0 Introduction
The FT2232L is the lead free version of FTDI’s 3rd 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 2nd 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.
1.1 Features Summary
HARDWARE FEATURES
Reset input and Reset Output pins
Single Chip USB Dual Channel Serial / Parallel 5V and 3.3V logic IO Interfacing with independent
Ports with a variety of configurations
level conversion on each channel
Entire USB protocol handled on the chip...no USB- Integrated 3.3V LDO Regulator for USB IO
specific firmware programming required
Integrated 6MHz – 48Mhz clock multiplier PLL
FT232BM-style UART interface option with full
USB Bulk or Isochronous data transfer modes
Handshaking & Modem interface signals
4.35V to 5.25V single supply operating voltage
UART Interface supports 7 / 8 bit data, 1 / 2 stop
range
bits, and Odd / Even / Mark / Space / No Parity
UHCI / OHCI / EHCI host controller compatible
Transfer Data Rate 300 to 1 Mega Baud (RS232) USB 2.0 Full Speed (12 Mbits / Second)
Transfer Data Rate 300 to 3 Mega Baud (TTL and
compatible
RS422 / RS485)
Compact 48-LD Lead Free LQFP package
Auto Transmit Enable control for RS485 serial
VIRTUAL COM PORT (VCP) DRIVERS for
applications using TXDEN pin
Windows 98 / 98 SE / 2000 / ME / XP
FT245BM-style FIFO interface option with bi-
Linux 2.40 and greater
directional data bus and simple 4 wire handshake Windows CE
interface
MAC OS-8 and OS-9**
Transfer Data Rate up to 1 MegaByte / Second
MAC OS-X
Enhanced Bit-Bang Mode interface option
D2XX (USB Direct Drivers + DLL S/W Interface)
New Synchronous Bit-Bang Mode interface option Windows 98 / 98 SE / 2000 / ME / XP
New Multi-Protocol Synchronous Serial Engine
Linux 2.4 and Greater
(MPSSE) interface option
New MCU Host Bus Emulation Mode option
New Fast Opto-Isolated Serial Interface Mode
APPLICATION AREAS
USB Dual Port RS232 Converters
USB Dual Port RS422 / RS485 Converters
option
Upgrading Legacy Peripheral Designs to USB
Interface mode and USB Description strings
USB Instrumentation
configurable in external EEPROM
USB JTAG Programming
EEPROM Configurable on board via USB
USB to SPI Bus Interfaces
Support for USB Suspend and Resume conditions USB Industrial Control
via PWREN#, and SI / WU pins
Field Upgradable USB Products
Support for bus powered, self powered, and high- Galvanically Isolated Products with USB Interface
power bus powered USB configurations
Integrated Power-On-Reset circuit, with optional
[ ** = In planning or under development ]
DS2232L Version 1.4
© Future Technology Devices International Ltd. 2005 Page 1 of 54

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