Fujitsu expands FM3 family of Cortex-M3 MCUs

Fujitsu expands FM3 family of Cortex-M3 MCUs

New Products |
By eeNews Europe

The 52 new devices are part of the Basic Line series MB9A310 and MB9A110. Coupled with the devices previously released in the High-Performance Line, the entire FM3 family now includes a total of 96 MCUs to meet a wide range of system design needs.

The new devices expand pin, memory and interface options, with flash memory from 64 to 512kbyte and an increased range of package options from 64- to 112-pin versions. A USB 2.0 host/function macro enables full speed USB master and slave implementations such as memory stick access, firmware update via USB or PC connections.

The FM3 family can operate on a wide range of power supply voltages, from 2.7 to 5.5 V and is well-suited for the conventional 5 V power-supply voltage needs of major home appliances and office automation devices. Additionally, the new devices are claimed to consume less power than the High-Performance Line products and other existing microcontrollers, at identical clock ratios.

The MCUs feature a high-speed, high-reliability NOR flash memory, which is designed for 100,000 write cycles and can retain data for up to 20 years. The high-speed CPUs and flash memory provided in the Basic Line have no wait-cycle penalty up to the maximum CPU clock speed of 40 MHz and achieve maximum performance in this category.

In addition to maintaining the existing peripheral functions from the FR microcontroller family in the new versions, Fujitsu also implemented a variety of peripheral macros to meet the needs for high-precision motor control. For example, the FM3 devices are equipped with three high-precision and high-speed independent 12-bit A/D converters (+/-2 LSB 1.0 μs conversion), enabling fine-tuned motor control.

Fujitsu says that the true potential of this design is demonstrated when the FM3 MCUs are employed in high-precision, high-speed servo motors, such as factory automation applications. Furthermore, quadrature decoder units for hardware supported rotator position sensing reduce the CPU workload.

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