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    New STM32L4 MCUs from STMicroelectronics Lead Ultra-Low-Power Class in Performance and Efficiency

    The latest STM32L496 and STM32L4A6 microcontrollers (MCU) from STMicroelectronics extend the unique fusion of ARM Cortex-M4F core performance and proprietary ultra-low-power technologies, adding larger memories, enhanced graphics support extra peripherals, and increased power-saving flexibility.

    Bigger on-chip RAM, now up to 320 Kbytes, complements the newly added ST Chrom-ART Accelerator graphics engine for smoother display performance in energy-conscious applications such as IoT devices and smart watches. There is also up to 1 Mbyte Flash, an extra CAN interface, a camera interface and crystal-less Full Speed (FS) USB OTG. A new high-pin-count UFBGA169 package option gives extra flexibility to exercise these new peripherals, which join the rich digital and smart analog features shared with the STM32L476/486. The STM32L4A6 with hardware cryptographic acceleration implements SHA-256 and AES-128/192/256 algorithms.

    Offering features unavailable in other ultra-low-power MCUs, the new STM32L4 devices deliver both high core performance and outstanding ultra-low-power efficiency. The EEMBC CoreMark score of 273 outperforms other ultra-low-power cores, while the ULPBench score of 217 confirms greater energy efficiency. Active-mode current of just 37µA/MHz enables longer runtime on small batteries and extends the scope to create energy-neutral products powered from ambient sources.

    The new STM32L4 MCU lines arrive with extensive ecosystem support, including STM32Cube tools and software, two Nucleo-144 boards, and the STM32L496 Discovery Kit (STM32L496G-DISCO) with on-board audio/graphics features and Arduino, Pmod and STMod+ connectivity support. The NUCLEO-L496ZG-P features an on-board DC/DC converter for powering the core directly, which allows developers to easily leverage the flexible power architecture in the most energy-conscious applications. The legacy-compatible NUCLEO-L496ZG is also available and offers the same features as existing Nucleo-144 boards.

    For more information, visit, st.com/stm32l4x6

    ELE Times Bureau
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