Future Technology Devices International Ltd MM232R USB - Serial UART Development Module Datasheet Document Reference No.: FT 000214 Version 1.1 Issue Date: 2010-03-12 Future Technology Devices International Ltd (FTDI) Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom Tel: +44 (0) 141 429 2777, Fax: +44 (0) 141 429 2758 E-Mail (Support): support1 ftdichip.com Web: Document Reference No.: FT 000214 MM232R USB - Serial UART Development Module Incorporating Clock Generator Datasheet Version 1.1 Clearance No.: FTDI 132 1 Introduction The MM232R is a miniature development module which uses FTDIs FT232RQ, the latest device to be added to FTDIs range of USB UART interface Integrated Circuit Devices. The FT232RQ is a USB to serial UART interface with optional clock generator output, and the new FTDIChip-ID security dongle feature. In addition, asynchronous and synchronous bit bang interface modes are available. USB to serial interface designs using the FT232RQ have been further simplified by fully integrating the external EEPROM, clock circuit and USB resistors onto the device. The FT232RQ adds two new functions compared with its predecessors, effectively making it a 3-in-1 chip for some application areas. The internally generated clock (6MHz, 12MHz, 24MHz, and 48MHz) can be brought out of the device and used to drive a microcontroller or external logic. A unique number (the FTDIChip-ID) is burnt into the device during manufacture and is readable over USB, thus forming the basis of a security dongle which can be used to protect customer application software from being copied. The MM232R is supplied on a ultra-small 18.0mm x 21.5mm (0.7 x 0.8) PCB. The module board interface is brought out on16 PCB header pins which are on a 2.55mm (0.1) pitch. All components used, including the FT232RQ are Pb-free (RoHS compliant). Figure 1.1 MM232R USB Serial UART Development Module Copyright 2010 Future Technology Devices International Ltd 1