Fujitsu Introduces New In-Built OSDC and USB Host 32-bit RISC Microcontroller

(PRWEB) July 10, 2003



Fujitsu Introduces New In-Built OSDC and USB Host


32-bit RISC Microcontroller


Frankfurt (PRWEB) July 8, 2003 ¬Ė Fujitsu Microelectronics Europe today announced that it has jointly developed with subsidiary Fujitsu VLSI Limited, a new 32-bit RISC microcontroller that controls character displays for television screens/monitors, including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and plasma display panels (PDPs).


The new MCU, the MB91F312, is embedded with both a high-resolution onscreen display controller (OSDC) and a universal serial bus (USB) host interface, enabling customers to deliver high-resolution, high-performance home theatre systems.


With the evolution of television screens in ever larger sizes, there has been a growing need for OSDCs capable of displaying information from peripheral systems, such as TV display modes or DVD players, with progressively higher quality and colourful expression.


The devices also need to be equipped with a comprehensive communications interface that allows audio/video equipment to be connected to a TV set.


To accommodate these demands, Fujitsu developed the MB91F312, which is equipped with both a high-resolution OSDC and USB host and operates at speeds of 40 MHz. This microcontroller enables high-speed processing of character displays in high-resolution TVs, and also enables a USB mouse or keyboard to be directly connected to a TV or set-top box.


Special Features of Fujitsu’s MB91F312 MCU


1) Maximum clock frequency of 40MHz (52 MIPS)


With a maximum clock frequency of 40MHz, offering the ability to process 52 MIPS, this product can handle the enormous processing resources required.


2) High-resolution character display with wide display area. With a wide display field of 42 characters by16 lines and a font resolution of 24 x 32 dots per character, even large-screen TVs can display characters in crystal-clear resolution without needing to use enlarged font sizes.


3) 1,792 character types¬ólargest in the industry¬óstored in font memory. With a bountiful collection of fonts to choose from, this product offers greater flexibility in font design. Even multi-coloured font designs can be used in menu displays.


4) Equipped with USB host functions.


The product is equipped with a USB macro that has host functions for USB communications. Thus, a set-top box running on this MCU will be able to connect and control peripherals, such as a USB mouse or keyboard, on its own. In addition, connecting a USB printer to the embedded system would enable print outs of the display screen.


Major Specifications:


Process technology: CMOS 0.25 ¬Ķm


Operating voltage: 2.3 to 2.7V (standard 2.5V); 3.0 to 3.6V (standard 3.3V)


Memory: 512 KBytes Flash 24 KBytes RAM168 KBytes font ROM


Max. operating clock frequency (CPU): 40MHz


Max. operating clock frequency (dot): 90MHzembedded PLL)




interface: USB host function (USB 2.0 FS compliant) I2C controller, Universal Asynchronous Receiver/Transmitter controller


Package: 144-pin low-profile quad flat package (LQFP)


Trademark Notice


All company/product names mentioned may be trademarks or registered trademarks of their respective holders and are used for identification purpose only.


About Fujitsu Microelectronics


Fujitsu Microelectronics Europe is a major supplier of semiconductor products to the European and global market. The company’s main business focus is on providing systems solutions to the automotive, multimedia, networking/telecommunications and mobile communications markets.


Fujitsu offers a broad range of semiconductor devices, including telecommunications ICs, RF devices, MPEG encoders and decoders, microcontrollers, graphic display controllers and microprocessors, FCRAMs and Flash memory. The company is also a leader in colour plasma display panels. For more information visit Fujitsu Microelectronics Europe’s website at


¬Öends (Ref: 014053-12/PR788)



About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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