Overview

The Fujitsu FM3 family of 32-bit general purpose microcontrollers features the industry's leading-edge ARM Cortex^TM-M3 CPU, providing a scalable platform for many industrial applications. The MCUs include a host of robust peripheral features, including motor control timers, ADCs and a wide range of communication interfaces. Customers can select the best device from a wide range of products, with available packages ranging from 32pin to 176pin and Flash memory densities between 32KB and 1MB. The MCUs are based on Fujitsu’s highly reliable (100,000 erase/write cycles) and high-speed (0 wait states at 72MHz) embedded Flash process. All MCUs are produced in Fujitsu’s own wafer fabs, offering greater control over quality, availability and costs. The wide operation supply voltage range up to 5.5V improves the signal to noise ratio, resulting in a robust design that is unique among Cortex-M3 microcontroller families.

Features

5. Integrated motor control safety features to meet IEC60730

• Integrated Quadrature Position/Revolution Counter (QPRC)
• Low-voltage detection
• Clock supervisor
• Hardware watchdog timer with independent clock
• RTC – option with battery backup for some products
• DTIF (motor emergency stop) interrupt and dead time function
• Cyclic Redundancy Check (CRC) accelerator to verify data transmission or storage integrity
• Flash memory with built-in Error Correction Code (ECC) feature as an option

6. Wide range of communication peripherals

• Robust multiple CAN2.0A/B(active) with 32 message buffers
• Multiple LIN I/Fs
• USB 2.0 full-speed host and slave device 12Mbps
• 10/100B-T x 2ch Ethernet MAC
• IEC61508 (SIL2) STL and plan for SIL3 function safety
• Multifunction serial macro with buffer – up to 12ch, each configurable as UART- 4.5Mbps, SIO/SPI: 10Mbps, I2C-400Khz

7. Long term supply guarantee

• Successful long track record delivering Fujitsu MCUs for industrial, automotive and consumer applications
• Product availability for a minimum of 10 years after product launch
• Fujitsu’s own fab, which helps meet delivery demands of customers

Product Line-up

The FM3 MCU family is split into four groups: High-Performance, Basic, Low-Power and Ultra-Low-Leak Groups. See the product line-up table below for detailed information about each group, including datasheets.

*Above fiigures show the maximum value of channel for communication interface.

Product Roadmap

Documentation

• Fact Sheets
  
  • FM3 Family of 32-bit MCUs with ARM Cortex-M3 Core - High-Performance MB9BF500/400/300/100 and Basic MB9AF100 /110/310 Series
  • FM3 Family of Ethernet-Enabled and Compact Low-Leak Microcontrollers - High-Performance MB9B610/410/310/110 and Ultra-Low-Leak MB9A130 Series
• Other Documentation
  
  • Data Sheets
  • Hardware Manuals
  • Support Soft Manuals
  • Application Notes

Resources

• Intelligent Motor Control with the Fujitsu FM3 MCUs - Webcast (EE Times)
• Guidelines for Meeting IEC 60730 Class B Requirements with FM3 MCUs - White Paper