The new STM32L4 MCUs score 273 in EEMBC CoreMark

The new STM32L4 MCUs from STMicroelectronics STM32L496 and STM32L4A6 offering on-chip RAM up to 320 Kbytes and flash memory of 1 Mbyte scored 273 in EEMBC CoreMark, making them attractive for low power performance by also achieving ULPBench score of 217 . The other features include: ST Chrom-ART Accelerator graphics engine for smoother display performance in energy-conscious applications such as IoT devices and smart watches 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. STM32L4A6 with hardware cryptographic acceleration implements SHA-256 and AES-128/192/256 algorithms Active-mode current of just 37µA/MHz enables longer runtime on small batteries and extends scope to create energy-neutral products powered from ambient sources. ST said it also extended the flexibility of the STM32L4 power architecture, giving developers the option to power the core from an external DC/DC converter for extra efficiency. The STM32L4 Flex Power Control architecture includes a new shutdown mode for additional energy savings, alongside multiple independent core and peripheral supplies, and a separate VBAT domain with charging circuitry that gives flexibility to utilize or recharge battery energy. Chip price: Budgetary pricin...