MM232R Mini USB-Serial UART Development Module Datasheet Version 1.00

© Future Technology Devices International Ltd. 2005

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Single chip USB to asynchronous serial data

transfer interface.

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Entire USB protocol handled on the chip - No

USB-specific firmware programming required.

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UART interface support for 7 or 8 data bits, 1 or 2

stop bits and odd / even / mark / space / no parity.

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Fully assisted hardware or X-On / X-Off software

handshaking.

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Data transfer rates from 300 baud to 3 Megabaud

(RS422 / RS485 and at TTL levels) and 300 baud

to 1 Megabaud (RS232).

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FTDI’s royalty-free VCP and D2XX drivers

eliminate the requirement for USB driver

development in most cases.

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In-built support for event characters and line break

condition.

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New USB FTDIChip-ID™ feature.

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New configurable CBUS I/O pins.

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Auto transmit buffer control for RS485 applications.

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Transmit and receive LED drive signals.

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New 48MHz, 24MHz,12MHz, and 6MHz clock

output signal Options for driving external MCU or

FPGA.

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FIFO receive and transmit buffers for high data

throughput.

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Adjustable receive buffer timeout.

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Synchronous and asynchronous bit bang mode

interface options with RD# and WR# strobes.

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New CBUS bit bang mode option.

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Integrated 1024 bit internal EEPROM for storing

USB VID, PID, serial number and product

description strings, and CBUS I/O configuration.

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Device supplied preprogrammed with unique USB

serial number.

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Support for USB suspend and resume.

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Support for bus powered, self powered, and high-

power bus powered USB configurations.

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On board jumper allows for selection of USB bus

powered supply or self powered supply.

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Integrated 3.3V level converter for USB I/O .

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Integrated level converter on UART and CBUS for

interfacing to 5V - 1.8V Logic.

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On board jumper allows for selection of UART and

CBUS interface IO voltage.

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True 5V / 3.3V / 2.8V / 1.8V CMOS drive output

and TTL input.

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High I/O pin output drive option.

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Integrated USB resistors.

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Integrated power-on-reset circuit.

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Fully integrated clock - no external crystal,

oscillator, or resonator required.

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Fully integrated AVCC supply filtering - No separate

AVCC pin and no external R-C filter required.

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UART signal inversion option.

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USB bulk transfer mode.

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3.3V to 5.25V Single Supply Operation.

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Low operating and USB suspend current.

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Low USB bandwidth consumption.

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UHCI / OHCI / EHCI host controller compatible

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USB 2.0 Full Speed compatible.

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range.

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Supplied on minature 18.0mm x 21.5mm PCB with

16 board header pins (on 2.25mm / 0.1” pitch).

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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

supplied with the MM232R module, as standard.

1. Features

1.1 Hardware Features

Royalty-Free VIRTUAL COM PORT

(VCP) DRIVERS for...

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Windows 98, 98SE, ME, 2000, Server 2003, XP.

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Windows Vista / Longhorn*

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Windows XP 64-bit.*

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Windows XP Embedded.

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Windows CE.NET 4.2 & 5.0

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MAC OS 8 / 9, OS-X

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Linux 2.4 and greater

Royalty-Free D2XX Direct Drivers

(USB Drivers + DLL S/W Interface)

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Windows 98, 98SE, ME, 2000, Server 2003, XP.

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Windows Vista / Longhorn*

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Windows XP 64-bit.*

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Windows XP Embedded.

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Windows CE.NET 4.2 & 5.0

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Linux 2.4 and greater

1.2 Driver Support

The drivers listed above are all available to download for free from the FTDI website. Various 3rd Party Drivers are

* Currently Under Development. Contact FTDI for availability.

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USB to RS232 / RS422 / RS485 Converters

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Upgrading Legacy Peripherals to USB

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Cellular and Cordless Phone USB data transfer

cables and interfaces

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Interfacing MCU / PLD / FPGA based designs to

USB

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USB Audio and Low Bandwidth Video data transfer

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PDA to USB data transfer

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USB Smart Card Readers

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USB Instrumentation

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USB Industrial Control

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USB MP3 Player Interface

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USB FLASH Card Reader / Writers

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Set Top Box PC - USB interface

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USB Digital Camera Interface

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USB Hardware Modems

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USB Wireless Modems

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USB Bar Code Readers

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USB Software / Hardware Encryption Dongles

1.3 Typical Applications