ST launches sub-dollar floating-point MCUs - Embedded.com

ST launches sub-dollar floating-point MCUs

The new STM32F301/302/303 microcontrollers from STMicroelectronics are based on the ARM Cortex-M4 core with Floating-Point Unit (FPU). The new MCUs are designed to deliver outstanding performance and system-on-chip integration for value-conscious advanced applications. The  STM32F301 access product line brings 32KBytes to 64KBytes on-chip Flash and 16KByte of SRAM, offering an easy step into ARM Cortex -M4-core-based MCU development. The STM32F302 and STM32F303 offer extended Flash density from 32KBytes to 256KBytes.

STM32F3 devices combine the 72MHz ARM Cortex-M4 core featuring DSP instruction set and FPU with high-performance analog peripherals to bring advanced integration to entry-level mixed-signal control applications. The full compatibility with the STM32F0 series gives customers the strong advantage of a single development platform. STM32F303 offers higher performance (90DMIPS) thanks to its Core-Coupled Memory (CCM-SRAM), which provides a “routine boost” equivalent to >100MHz CPU frequency execution from Flash.

The new sub-30ns analog comparators combined with 5Msample/s 12-bit ADC, the fastest ADC in any ARM Cortex-based MCU, offer ultra-fast reaction time for control-sensitive applications such as digital power, sonar, motor control, lighting, or wireless chargers. This ultra-fast ADC, with support of oversampling to allow 16-bit resolution at 20ksamples/s and 18-bit at 1.2ksamples/s, enhances precision, making these devices ideal for applications such as sensor data processing, healthcare, power meters, and instrumentation.  In the new STM32F302/303 devices, the USB-LPM (Link Power Management) mode reduces connectivity power consumption.

The new mbed-compatible STM32F302 Nucleo board , available at $10.32, joins the enablement ecosystem alongside the existing STM32F303 Discovery kit to help engineers try out new ideas and quickly create prototypes.

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