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| [ PRESS RELEASE ] |
2002-0211E
Fujitsu Limited
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Fujitsu Releases New High-Performance 16-bit
Microcontrollers for Notebook PCs
Feature Built-in Power Management Function for Use as Keyboard Controllers
Tokyo, September 9, 2002 - Fujitsu Limited today announced the release of two new additions to the MB90370 series in its F2MC family of microcontrollers, the MB0F372 and MB90372. The products, 16-bit microcontrollers with built-in power management functions for use as mobile computer keyboard controllers, were developed together with the Hong Kong Design Center of Fujitsu Microelectronics Pacific Asia Limited (FMP).
Increasing demand for ever more compact notebook PCs that can deliver performance on par with desktop models has raised requirements for high-function, highly integrated devices. Fujitsu's MB93070 series is designed to respond to these needs with its integrated power-management features and wide range of interfaces.
Key advantages of the MB93070 include:
- Integrated LPC bus (*1) and serial IRQ (*2) simplify interface with host controller (*3).
- Built-in power-management features include on-chip comparator and power control circuit for the AC power controller and battery monitor, enabling efficient control of up to three batteries.
- Includes I2C (*4) and multi-address I2C to communicate with smart batteries (*5), which support SMBusRev 1.1(*6) specifications for packet-error checking (*7) and timeout detection (*8). The multi-address I2C can be set to any six addresses. A bridge circuit that can switch these communications paths is also built in.
- Phoenix Technologies' firmware will be adapted for the MB90370 series, facilitating implementation in notebook PC embedded environments.
Fujitsu is committed to the ongoing improvement of its F2MC family of system microcontrollers, offering customers simpler system designs, lower parts counts, and reduced footprint requirements. Fujitsu is also extending its line to cover such areas as automotive, digital AV and car audio applications.
Sample pricing (excluding tax) in Japan for the MB90F372 with flash memory is 1,500 yen, and for the MB90372 with mask ROM, 750 yen. Samples will be available from October 2002. Fujitsu has set a sales target of 100,000 units per month for the two models combined.
Main Features of the MB90370 Series
| Process technology: | 0.35 micron metal CMOS |
| Instruction count: | 351 |
| Minimum instruction execution time: | 62.5 ns @ 4MHz (PLL, 4x) |
| Memory: |
| MB90F372: | 64KB flash memory / 6KB RAM |
| MB90372: | 64KB mask ROM / 6KB RAM |
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| Voltage: | 3.0-3.6V (operating at 16 MHz internally) |
| I/O ports: | 120 (16 open drain, 72 CMOS, 32 CMOS with pull-up control) |
| Timers: | Reload timer (16-bit); PPG timer (16-bit); Time-base timer (18-bit); Watchdog timer |
| Interrupts: | Serial IRQ controller, external interrupt |
| Communications: | LPC interface, PS/2 interface, I2C bus interface, multi-address I2C bus interface, UART |
| Comparator: | AC power and battery monitor (handles up to three batteries) |
| Bridge circuit: | can switch between connection paths for three types of bus for I2C or multi-address I2C |
| LCD controller: | 9SEG / 4COM (36 segments) |
| Key-on wakeup: | 8 independent channels |
| Converter: | 12-channel (10-bit/8-bit selectable) A/D converter; 2-channel (8-bit) D/A converter |
| Package: | 144-pin plastic LQFP (*9) |
Glossary
- *1. LPC bus: Low pin-count bus
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Successor interface to ISA bus found in most PCs. Its main feature is that it uses fewer pins to transmit the bus signal.
- *2. Serial IRQ (Interrupt Request)
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Interrupt signals that used to be controlled by parallel lines (multiple signal lines) are controlled by only a single line, reducing the number of pins needed to transmit interrupts.
- *3. Host controller
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Central controller of control system.
- *4. I2C: Inter Integrated Circuit
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A bus specification for communications between LSIs used in household appliances, communications equipment, etc.
- *5. Smart battery
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A specification for batteries used in personal computers. The battery pack contains a microcontroller to assist in monitoring the battery's performance.
- *6. SMBus: System Management Bus
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A bus specification for conveying information from smart batteries.
- *7. Packet Error Check
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An additional communications protocol used to help ensure data integrity.
- *8. Timeout detection
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A function that detects the clock signal's status.
- *9. LQFP: Low-profile quad flat package
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A type of surface-mount package design.
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: http://www.fujitsu.com/
[Press Contacts]
Nozomi Endo, Nancy Ikehara
Fujitsu Limited, Public & Investor Relations
Tel: +81-3-3215-5259 (Tokyo)
Fax: +81-3-3216-9365
 Press Inquiries
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[Customer Contact]
Applications Engineering Dept.
Electronic Devices Group
Fujitsu Limited
Tel: +81-42-532-1397
e-mail: edevice@fujitsu.com
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Trademarks
F2MC is a registered trademark of Fujitsu Limited. I2C is a registered trademark of Royal Philips Electronics Limited. All other product names and company names mentioned herein are the trademarks or registered trademarks of their respective companies.
All company/product names mentioned may be trademarks or registered trademarks of their respective holders and are used for identification purpose only.
Please understand that product prices, specifications and other details are current on the day of issue of the press release, however, may change thereafter without notice.
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