Summary of STMICROELECTRONICS STM32L5 SERIES OF ULTRA-LOW-POWER MCUS
The STM32L5 microcontroller series delivers an optimal balance of performance, power, and security for IoT and embedded applications. Leveraging the Arm Cortex-M33 processor with TrustZone and ST's proprietary security features, it offers ultra-low power consumption alongside high-speed processing up to 110 MHz. The series supports diverse sectors including factory automation, motor control, and smart home devices through its large memory options, USB Type-C capabilities, and extensive package variety.
Parts used in the STM32L5 Microcontroller Series:
- Arm Cortex-M33 processor
- TrustZone for Armv8-M
- ST-proprietary ultra-low-power technologies
- Dedicated secure user memory space
- Symmetric and asymmetric crypto accelerations
- Active I/O tamper detection
- Embedded Secure Firmware Install loader
- EEMBC ULPBench® score metrics
- Embedded SMPS step down converter
- New ST ART Accelerator
- USB Type-C with power delivery controller
- CAN FDL interface
- 7 package types (LQFP48, QFN48, LQFP64, WLCSP81, LQFP100, UFBGA132, LQFP144)
The STM32L5 microcontroller series is the solution and provides a new optimal balance between performance, power, and security
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
Read more: STMICROELECTRONICS STM32L5 SERIES OF ULTRA-LOW-POWER MCUS
- What is the primary benefit of the STM32L5 microcontroller series?
The series provides a new optimal balance between performance, power, and security. - How does the STM32L5 enhance security compared to previous models?
It harnesses the security features of the Arm Cortex-M33 processor and TrustZone for Armv8-M combined with ST security implementation. - Can the STM32L5 achieve low power consumption in active mode?
Yes, it can achieve power consumption down to 60 µA/MHz in active mode. - What is the maximum performance speed of the STM32L5 series?
The series features a new Arm Cortex-M33 operating at 110 MHz performance. - Does the STM32L5 support secure boot functionality?
Yes, it includes enhanced security services with a dedicated secure user memory space for Secure Boot. - How many package types are available for the STM32L5 portfolio?
There are 7 package types available including LQFP48, QFN48, LQFP64, WLCSP81, LQFP100, UFBGA132, and LQFP144. - What certification does the STM32L5 offer regarding cryptography?
It comes with a certified crypto lib and an embedded Secure Firmware Install loader. - Which industries can benefit from using the STM32L5 microcontrollers?
Applications include factory automation, motor control, electricity metering, home automation, smart bikes, and electronic door locks.
