New STM32L4 MCUs from STMicroelectronics Lead Ultra-Low-Power Class in Performance and Efficiency with Top Peripheral Integration



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 scope to create energy-neutral products powered from ambient sources.

ST has 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 FlexPowerControl 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. The rich selection of seven main STM32L4 low-power modes is also supported, with options such as retaining I/O levels and SRAM contents, each with several sub-modes that allow precision trimming of power consumption as application demand varies.

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.

Budgetary pricing is from $4.63 for the STM32L496RET6 with 512 Kbytes Flash and 320 Kbytes SRAM in LQFP64 package, for orders of 10,000 pieces per year.

Prices for development boards start at $19 for the legacy-compatible Nucleo-144 board (NUCLEO-L496ZG), which is available now. The Discovery Kit (STM32L496G-DISCO) is also available now, priced 70$. The NUCLEO-L496ZG-P board with external DC/DC converter will be available to distributors in April 2017.

For further information please visit www.st.com/stm32l4x6

Contact Information

STMicroelectronics

39, Chemin du Champ des Filles
C. P. 21 CH 1228 Plan-Les-Ouates
GENEVA ,
Switzerland

toll-free: +41 22 929 29 29
fax: +41 22 929 29 88

Share and Enjoy:
  • Digg
  • Sphinn
  • del.icio.us
  • Facebook
  • Mixx
  • Google
  • TwitThis
Extension Media websites place cookies on your device to give you the best user experience. By using our websites, you agree to placement of these cookies and to our Privacy Policy. Please click here to accept.