RISC-Based Microcontroller is suited for home appliances.

Press Release Summary:

Series MB91F479 uses 32-bit, 80 MHz FR60 CPU core for processing power and includes triple ADC modules that support total of 20 channels of input from as many sensors. Three of these channels can execute simultaneously. While 2 ADC units have 12-bit resolution and operate together with flexible PWM unit, other ADC supports 8- or 10-bit resolution. MAC (Multiplication and Addition Calculator) circuit performs product-sum calculations separate from CPU.

Original Press Release:

Fujitsu Introduces New 32-bit Microcontroller for Home Appliances

Powerful A/D Converter and Fine-Grained Control Deliver Sophisticated Features and Optimum Energy Savings

Embedded Systems Conference, SAN JOSE, Calif., April 4 / -- Fujitsu Microelectronics America, Inc. (FMA) today announced the June availability of the latest addition to its FR series of RISC based 32-bit microcontrollers, the MB91470 series. The new series is designed to complement the trend towards advanced, highly sophisticated functionality in home appliances by supporting highly accurate and speedier control. The series delivers energy-efficient, and low-noise operation.

"A current trend in household appliances is to use data from multiple sensors in advanced features, as seen with multiple temperature monitors and added steam in microwave ovens to achieve best results for various foods, and with humidification and air-particle monitoring in air conditioners to deliver high-quality air," said Akio Nezu, senior marketing manager for the Embedded Products group for Fujitsu Microelectronics. "There is also demand for highly precise temperature control in microwave ovens and induction-heating cooking surfaces, as well as quieter operation in air conditioners, washing machines, dryers, dishwashers and other appliances. Meeting these demands requires the ability to process data from multiple sensors in real time and to provide fine-grained control," said Nezu.

Industry-leading multiple channel A/D converters operate simultaneously

Fujitsu's first offering in the series, the MB91F479, includes industry-leading triple ADC modules that support a total of 20 channels of high-performance A/D converters, which permits the microcontroller to accept inputs from as many as 20 sensors. Three of these channels can execute simultaneously. Two of the ADC units have 12-bit resolution, and another one supports 8- or 10-bit resolution to support a highly accurate control requirement. The incorporation of 20 sensors allows the MCU to detect very small changes in data from the sensors and operate very smoothly.

12-bit A/D converter and pulse-width modulation provide low-power, quiet operation

The industry's fastest and most precise 12-bit A/D converters for embedded application are sensitive to the smallest changes, and respond very quickly. These converters operate together with a flexible pulse-width modulation unit that enables smooth and accurate control for the most demanding embedded applications. This combination of features improves power efficiency and provides quieter operation.

Uses the 32-bit FR60 CPU core for processing power

Built around the 80-MHz FR60 -- among the industry's best cores for embedded applications -- the MB91F479 operates at high speeds to process complex information in real time. A MAC (Multiplication and Addition Calculator) circuit performs product-sum calculations separate from the CPU, providing faster processing and reducing the total CPU load.

Pricing and Availability

The MB91F479 is manufactured using Fujitsu's 0.18-micron CMOS process, and packaged in 144-pin LQFPs. Samples will be available in June 2006, with sample prices starting at $15 each.

About Fujitsu Microelectronics America, Inc.

Fujitsu Microelectronics America, Inc. (FMA) leads the industry in innovation. FMA provides high-quality, reliable semiconductor products and services for the networking, communications, automotive, security and other markets throughout North and South America. For more information about the Fujitsu microcontrollers please see us.fujitsu.com/micro/mcu or address e-mail to inquiry@fma.fujitsu.com

NOTE: All company/product names mentioned may be trademarks or registered trademarks of their respective owners.
  MB91F479 Specifications

Product Name MB91F479
Minimum Instruction Execution Speed 12.5 nanoseconds (80MHz)
Memory ROM 512 kilobyte
(Flash memory)
RAM 32 kilobyte
Transmission I2C Function (*1)
Function UART (*2) 6 channel (ch)
Analog 12 Bit A/D 4 chx2 Units, total 8 ch
Function 8/10 Bit A/D 12 chx1 Unit
Multifunction Timer 1 Unit
16 Bit Reload Timer 2 ch
Timer Function 8/16 Bit 8 Bit x 8 ch or 16 Bit x4 ch
PPG Timer selectable
16/32 Bit Base Timer 16 Bit x 4 ch or 32 Bit 2 ch
8/16 Bit Up-Down Counter 8 Bit x 2 ch or 16 Bit x 1 ch
Watchdog Timer 1 ch
External Interruptions Maximum of 11
DMAC 5 ch
Multiplication and Addition
Calculator Circuit 1 Unit(32-bit data x 32-bit
data + 72-bit data = 72-bit
data or 32-bit round-up or
clipped data)
Calculation results can be
round up to 32-bit length
External BUS I/F Supported
I/O Port Maximum of 113
Voltage 4.0 - 5.5 Volts
Operating Temperature >From -40 to +85 deg C
Package LQFP (*3) - 144 Pins (0.4mm
Pitch, 16x16mm Body)

*1. I2C: Inter-Integrated Circuit communication protocol. Purchase of Fujitsu I2C components conveys a license under the Philips I2C Patent Rights to use these components in an I2C system provided that the system conforms to the I2C Standard Specification as defined by Philips.

*2. Universal Asynchronous Receiver Transmitter (UART): A macro for asynchronous serial communication that can also provide clock-synchronous communication.

*3. Low-profile Quad Flat Package (LQFP): A type of plastic surface mount package that has a height of less than 1.7mm.

CONTACT: Emi Igarashi of Fujitsu Microelectronics America, +1-408-737-5647, or eigarash@fma.fujitsu.com; or Dick Davies of IPRA, +1-415-777-4161, or ipra@mindspring.com, for Fujitsu Microelectronics America

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