STMicroelectronics STM32F4 microcontroller series

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STMicroelectronics has extended its high-performance STM32F4 microcontroller (MCU) series at the entry level, introducing devices with more memory and extra features as well as the first STM32F4 MCUs qualified to 125°C.

The STM32F412 and high-temperature STM32F410 MCUs give designers more choices within the economical access lines, which feature the 84 MHz (STM32F401 line) and 100 MHz (STM32F410/F411/F412 lines) ARM Cortex-M4 cores and 128 KB to 1 MB Flash with up to 256 KB RAM. The access lines offer easy scalability to both STM32F4 Foundation Line and Advanced Line devices.

The STM32F412 comes with high-performance interfaces to off-chip memory via dual-mode 100 MHz Quad-SPI and a flexible memory controller (FMC) for static memory that allow efficient expansion of the integrated 1 MB Flash and 256 KB RAM. There is also an LCD parallel interface, which allows managing displays up to QVGA resolution with 16-bit colour depth or WQVGA with 8-bit depth. A true random number generator (TRNG) enhances support for performing security algorithms such as cryptography. In addition, the USB OTG port present in the current access lines is enhanced with link power management (LPM) and dual power rails that enable designers to save circuit-board space by eliminating level shifters.

The STM32F410 begins a roadmap that will ultimately qualify all STM32F4 access line MCUs to 125°C. Both the STM32F410 and STM32F412 support direct memory access (DMA) batch acquisition mode (BAM) to capture data without waking the CPU in power-conscious applications. In addition, digital filters for four low-power microphone channels allow efficient hosting of speech-recognition algorithms with lower power consumption and low CPU loading.

For more information: www.st.com/stm32f4.