STMicroelectronics STM32L5 series of ultra-low-power MCUs

Security has emerged as one of the 3 key areas that developers of embedded and IoT applications are thriving to improve. The STM32L5 microcontroller series is the solution and provides a new optimal balance between performance, power, and security. The STM32L5 MCU series harnesses the security features of the Arm Cortex-M33 processor and its TrustZone for Armv8-M combined with ST security implementation. ST-proprietary ultra-low-power technologies create a class-leading MCU for energy-conscious applications such as the Internet of things (IoT), medical, industrial and consumer.

Key features

• More Security with TrustZone Security and ST Security Implementation
• Lower Power Consumption
• Integration, Size, Performance: More performance, Large Memory Size and Wide Portfolio
• A Full Set of Security Options​​

Additional features

A full set of security options:

• Flexible hardware and software secure isolations with TrustZone
• Enhanced security services:
  • dedicated secure user memory space for Secure Boot, symmetric and asymmetric crypto accelerations, memory and IP protection
  • independent readout protection between secure/non-secure domains, active I/O tamper detection
  • certified crypto lib, embedded Secure Firmware Install loader and ecosystem.

Low power consumption:

• EEMBC ULPBench®: 402 ULPMark-CP score
• Embedded SMPS step down converter (optional)
• Best power consumption numbers with full flexibility:
  • 33 nA in shutdown mode
  • 3.6 µA in stop mode with full SRAM and peripheral states retention with 5µs wake-up time
  • Down to 60 µA/MHz in active mode

Integration, size, and performance:

• Better application responsiveness:
  • New Arm® Cortex®-M33 at 110 MHz performance: +20% versus Cortex®-M4
  • New ST ART Accelerator: working both on internal and external Flash (8 Kbytes of instruction cache)
• Capable of achieving 165 DMIPS and 442 CoreMark scores
• High integration and innovation: large memory, USB Type-C with power delivery controller, CAN FD
• Large portfolio: 7 package types (LQFP48, QFN48, LQFP64, WLCSP81, LQFP100, UFBGA132 and LQFP144)

Applications

• Factory Automation
• Motor Control
• Electricity Meter
• Home Automation
• Smart Bike
• Electronic Door Lock

Available tools

Upcoming seminars or promotion activities

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