Fujitsu unveils FM4 family of 32-bit MCUs

USA: Fujitsu Semiconductor America introduced its new FM4 family of 32-bit RISC microcontrollers based on the ARM Cortex-M4 processor core.

The MCUs are designed for applications that require advanced, high-speed computing performance, such as general-purpose inverters, servomotors, PLCs and other industrial equipment, as well as energy-efficient, inverter-based home appliances.

The FM4 family includes 84 MCUs in its MB9B560R/460R/360R/160R series. Set to begin sampling in July, the devices build on the popular Fujitsu FM3 MCU family, with increased computational performance, enhanced peripheral functionality and an easy-to-use design.

The FM4 MCUs operate from 3V and 5V power supplies, with a variety of memory options including SRAM, NOR flash, NAND flash and SDRAM. They feature an ultra-wide bus for onboard flash memory that enables read access with no CPU wait state, speeding processing and reducing power requirements.

The Cortex-M4 core incorporates DSP and FPU functions that provide the power required for advanced computations. Algorithms for operating onboard flash memory have been redesigned for greater speed and lower power consumption. The current required when running the real time clock (RTC) mode can be limited to approximately 1.5 uA, making these high-performance MCUs useful for applications that require very low standby power. The devices support 100,000 rewrite cycles with a 20-year data retention.