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1. Features
1.1 Hardware Features
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Support for USB suspend and resume.
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Single chip USB to asynchronous serial data
transfer interface.
Support for bus powered, self powered, and high-
power bus powered USB configurations.
On board jumper allows for selection of USB bus
powered supply or self powered supply.
Integrated 3.3V level converter for USB I/O .
Integrated level converter on UART and CBUS for
interfacing to 5V - 1.8V Logic.
On board jumper allows for selection of UART and
CBUS interface IO voltage.
True 5V / 3.3V / 2.8V / 1.8V CMOS drive output
and TTL input.
High I/O pin output drive option.
Integrated USB resistors.
Integrated power-on-reset circuit.
Fully integrated clock - no external crystal,
oscillator, or resonator required.
Entire USB protocol handled on the chip - No
USB-specific firmware programming required.
UART interface support for 7 or 8 data bits, 1 or 2
stop bits and odd / even / mark / space / no parity.
Fully assisted hardware or X-On / X-Off software
handshaking.
Data transfer rates from 300 baud to 3 Megabaud
(RS422 / RS485 and at TTL levels) and 300 baud
to 1 Megabaud (RS232).
FTDI’s royalty-free VCP and D2XX drivers
eliminate the requirement for USB driver
development in most cases.
In-built support for event characters and line break
condition.
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New USB FTDIChip-ID™ feature.
New configurable CBUS I/O pins.
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Fully integrated AVCC supply filtering - No separate
AVCC pin and no external R-C filter required.
UART signal inversion option.
Auto transmit buffer control for RS485 applications.
Transmit and receive LED drive signals.
New 48MHz, 24MHz,12MHz, and 6MHz clock
output signal Options for driving external MCU or
FPGA.
FIFO receive and transmit buffers for high data
throughput.
Adjustable receive buffer timeout.
Synchronous and asynchronous bit bang mode
interface options with RD# and WR# strobes.
New CBUS bit bang mode option.
Integrated 1024 bit internal EEPROM for storing
USB VID, PID, serial number and product
description strings, and CBUS I/O configuration.
Device supplied preprogrammed with unique USB
serial number.
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USB bulk transfer mode.
3.3V to 5.25V Single Supply Operation.
Low operating and USB suspend current.
Low USB bandwidth consumption.
UHCI / OHCI / EHCI host controller compatible
USB 2.0 Full Speed compatible.
-40°C to 85°C extended operating temperature
range.
Supplied on minature 18.0mm x 21.5mm PCB with
16 board header pins (on 2.25mm / 0.1” pitch).
Connect to a PC via a standard USB A to B USB
cable.
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Two 1x4 and one 2x4 PCB header sockets are
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supplied with the MM232R module, as standard.
1.2 Driver Support
Royalty-Free VIRTUAL COM PORT
(VCP) DRIVERS for...
Royalty-Free D2XX Direct Drivers
(USB Drivers + DLL S/W Interface)
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
Windows Vista / Longhorn*
Windows XP 64-bit.*
Windows XP Embedded.
Windows CE.NET 4.2 & 5.0
MAC OS 8 / 9, OS-X
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Windows 98, 98SE, ME, 2000, Server 2003, XP.
Windows Vista / Longhorn*
Windows XP 64-bit.*
Windows XP Embedded.
Windows CE.NET 4.2 & 5.0
Linux 2.4 and greater
Linux 2.4 and greater
The drivers listed above are all available to download for free from the FTDI website. Various 3rd Party Drivers are
also available for various other operating systems - see the FTDI website for details.
* Currently Under Development. Contact FTDI for availability.
1.3 Typical Applications
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USB to RS232 / RS422 / RS485 Converters
Upgrading Legacy Peripherals to USB
Cellular and Cordless Phone USB data transfer
cables and interfaces
Interfacing MCU / PLD / FPGA based designs to
USB
USB Audio and Low Bandwidth Video data transfer
PDA to USB data transfer
USB Smart Card Readers
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USB Industrial Control
USB MP3 Player Interface
USB FLASH Card Reader / Writers
Set Top Box PC - USB interface
USB Digital Camera Interface
USB Hardware Modems
USB Wireless Modems
USB Bar Code Readers
USB Software / Hardware Encryption Dongles
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USB Instrumentation
MM232R Mini USB-Serial UART Development Module Datasheet Version 1.00
© Future Technology Devices International Ltd. 2005
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