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Date: 30-01-15

ARM Cortex M4 MCU execute motor control programs 43% faster

STMicroelectronics has extended its STM32F3 microcontroller series with larger memory densities up to 512Kbyte Flash and 80KB SRAM, and feature peripherals for high-speed control and off-chip storage.

ST's “Routine Booster” based on core-coupled memory (CCM-SRAM) inside this chip helps ARM Cortex M4 processor to execute motor control programs 43% faster. This is what makes a differentiator, in case of so many ARM Cortex M4 based microcontrollers available in the market.

The interface peripherals added to this microcontroller chip includes extra SPI and I2C communication. There is also Flexible Memory Controller (FMC) with 36MHz access on 8/16bit bus for various off-chip storage and LCD modules. Some more features to highlight in this microcontroller chip includes
A. Three 144MHz 16-bit motor-control timers for multi-motor products found in home appliances, power tools, and industrial equipment.

B. 12-bit ADCs each with class-leading 5Msample/s performance, true 16-bit Sigma-Delta ADCs, fast comparators (25ns), agile High-Resolution Timers (217ps) with complex-Waveform Builder, and uncommitted Programmable-Gain Amplifier (PGA). LQFP, BGA or WLCSP options are offered, covering 32 to 144 pins.

These new devices can be evaluated on NUCLEO-F303RE board featuring a 64-pin device for fast prototyping and sampling, and STM32303E-EVAL board featuring a 100-pin device for evaluation. The full embedded software package with peripherals drivers, libraries and stacks (CubeF3) is available. The associated STM32CubeMX tool helps in configuration and initialization.

The STM32F302 with 512KByte Flash is available now, priced $3.38 for orders of 10,000 pieces in the LQFP64 package.

For further information visit: www.st.com/stm32f3

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