Fujitsu Microelectronics Asia Pte Ltd

Fujitsu Introduces Two New RISC Microcontrollers for Digital Home Electronics

High-Performance 32-bit Architecture, 50 MHz Maximum Operating Frequency

Tokyo, 19 September 2002 — Fujitsu Limited today introduced two new 32-bit RISC microcontrollers that are designed to run digital home appliances, such as audio equipment, digital televisions and DVD players. Jointly developed with Fujitsu VLSI Limited, the two new additions to Fujitsu's MB91350 (MB91F353 and MB91F355) series, the operating frequency at speeds up to 50 MHz, bringing a new level of performance to microcontrollers. Both new models are being marketed starting today, with sample shipment beginning in October.

In recent years, the performance level of home electronic appliances has reached a new stage of complexity, with many products featuring built-in functions to handle such tasks as TCP/IP support for Internet connectivity and JPEG image processing. As a result, the microcontrollers that drive these appliances are required to store larger, more complex programs and execute them more swiftly. At a more technical level, there has emerged a growing need for a high-performance serial interface to control devices that handle video and audio processing.

Fujitsu's MB91350 series of microcontrollers was developed to address these needs, with a 32-bit RISC architecture, built-in flash memory, high operating frequency, and a serial interface with multiple independent channels.

Principal features of Fujitsu's new microcontrollers include:

• Maximum operating frequency of 50 MHz enables 64 MIPS performance, roughly 20 times the speed of Fujitsu's 16-bit CISC-based microcontrollers (3 MIPS).
• A rich serial interface with nine full channels (on the MB91F355) for ease of AV processing system control.
• Built-in 32 KHz clock and clock gearing to provide an array of power management functions and lower power consumption.
• Stored programs are compressed to make them as compact as those for 16-bit CISC microcontrollers.

Fujitsu remains committed to enhancing its line of microcontrollers. Through the ongoing development of memory technologies and package line-ups incorporating built-in flash memory.

Fujitsu will continue to strengthen its line-up of high-performance microcontrollers for digital home appliances, audio-video equipment and PC peripherals by reducing surface area and parts count.

MB91350 Series: Main Specifications

Process Technology:	CMOS 0.35 µm
Voltage:	3.3 V ± 0.3 V
Operating Frequency	50 MHz (maximum)
Built-in memory:	4 Mbit (flash memory); 192 Kbit (RAM)
External bus:	MB91F355: 24-bit address space; 8/16-bit data space MB91F353: 21-bit address space; 8/16-bit data space
Serial interface functions:	MB91F355: UART x 5, SIO x 3, I 2 C interface x 1 MB91F353: UART x 4, SIO x 2, I 2 C interface x 1
A/D converter:	8/10-bit
D/A converter:	8-bit
Timer functions:	Reload timer, U-timer, PPG, ICU, OCU, Up/down counter, Watchdog
Packaging:	MB91F355: JEDEC-standard plastic 176-pin Low-profile Quad Flat Package MB91F353: JEDEC-standard plastic 120-pin Low-profile Quad Flat Package

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About Fujitsu

Fujitsu is a leading provider of customer-focused IT and communications solutions for the global marketplace. Pace-setting technologies, high-reliability/performance computing and telecommunications platforms, and a worldwide corps of systems and services experts make Fujitsu uniquely positioned to unleash the infinite possibilities of the broadband Internet to help its customers succeed. Headquartered in Tokyo, Fujitsu Limited (TSE:6702) reported consolidated revenues of 5 trillion yen (about US$38 billion) for the fiscal year ended March 31, 2002.
For more information, please see: www.fujitsu.com

About Fujitsu Microelectronics Asia Pte Ltd (FMAL)

Established in 1986, Fujitsu Microelectronics Asia Pte Ltd (FMAL), a wholly owned subsidiary of Fujitsu Limited (TSE:6702), is a leading provider of microelectronics and flat panel displays (TFT-LCD) in Asia. With Locations in Singapore, China, Hong Kong, Taiwan and Malaysia, the FMAL team of skilled engineers and marketing experts are uniquely positioned to provide sales and technical support to its customers throughout the Asia Pacific region. FMAL offers the latest in cutting edge technology through an extensive R&D network comprising ASIC Design Centres in Singapore and Shenzhen, China; Application Labs in Singapore and Shanghai; and an MCU/Flash/System Design Centre in Hong Kong.
For more information, please call (65) 6281 0770
For more information, please see: www.fmal.fujitsu.com

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