- Proprietary security builds on Arm TrustZone technology to
achieve PSA Certified Level 2 certification
- Secure boot, full HW isolation, crypto accelerators
- Best-in-class power management for energy-conscious
applications
Geneva, February 13, 2020 – STMicroelectronics (NYSE:
STM), a global semiconductor leader serving customers
across the spectrum of electronics applications, announces
ultra-low-power STM32L5x2 microcontrollers (MCUs) that emphasize
security to assure better protected IoT-connected applications.
Operating at clock frequencies to 110MHz, the STM32L5-series
MCUs start from the Arm® Cortex®-M33 32-bit RISC core with Arm
TrustZone® hardware-based security. First conceived for equipment
such as desktops, mobile devices, and communication infrastructure,
trusted computing authenticates devices connected to a network by
creating a protected execution environment for cyber-protection and
sensitive code (cryptography and key storage) that blocks attempts
to corrupt devices or software. A second, independent, execution
environment allows for the running of untrusted code.
To this foundation, ST adds the freedom to include or exclude
each I/O, peripheral, or area of Flash or SRAM from TrustZone
protection, allowing sensitive workloads to be fully isolated for
maximum security. In addition, ST has engineered TrustZone to
ensure support for secure boot, special read-out and write
protection for integrated SRAM and Flash, and cryptographic
acceleration, including AES 128/256-bit key hardware acceleration,
public key acceleration (PKA), and AES-128 On-The-Fly Decryption
(OTFDEC), to protect external code or data. The STM32L5 also
supports active tamper detection and secure firmware installation.
With this attention to security, the STM32L5 has been certified to
PSA Certified Level 2.
“As IoT and embedded devices increase in intelligence and
functionality, security must be built in from the ground up,” said
Thomas Ensergueix, senior director, Automotive and IoT Line of
Business at Arm. “The STM32L5 series makes it easier for developers
to build trusted PSA Certified devices based on the Arm Cortex-M33
processor, providing a robust and secure foundation for devices
ranging from consumer products to industrial equipment.”
On top of this protection and design flexibility, ST mixes in
its proprietary ultra-low-power expertise through techniques like
adaptive voltage scaling, real-time acceleration, power gating, and
multiple reduced-power operating modes, to enable the MCUs to
deliver high performance and long run-times, whether powered by
coin cells or even through energy harvesting. In addition, a highly
efficient switched-mode step-down regulator can be powered up or
down on-the-fly to improve low-power performance when the VDD
voltage is high enough. The resulting ULPMark scores, which are key
measures of ultra-low-power efficiency based on real-world
benchmarks developed by EEMBC, are excellent: 370
ULPMark-CoreProfile and 54 ULPMark-PeripheralProfile at 1.8V.
“As a market leader in MCUs with a strategic focus in areas like
Smart Cities, Smart Buildings, and Smart Industry, ST recognized
the importance of a series of MCUs that combined world-class
ultra-low-power consumption with industry-leading security and data
protection, for mission-critical applications and at-the-edge node
processing,” said Ricardo De Sa Earp, Microcontroller Division
General Manager, STMicroelectronics. “Applying ST’s expertise in
ultra-low-power design and processing technologies and adding our
security and data protection on top of the solid foundation of Arm
TrustZone and the outstanding STM32 ecosystem, the STM32L5x2 MCUs
are ideal for Industrial IoT applications – metering, health (human
or machine) monitoring, mobile point-of-sale – that require
reliability and security.”
The STM32L5x2 MCUs offer 512 Kbyte dual-bank Flash that allows
read-while-write operation to aid device management and the Flash
ensures a high level of safety by supporting Error Correction Code
(ECC) with diagnostics. There is also a 256Kbyte-SRAM and features
to support high-speed external memory including single, dual, quad,
or octal SPI and Hyperbus Flash or SRAM, and an interface for SRAM,
PSRAM, NOR, NAND or FRAM.
Digital peripherals for the STM32L5x2 include USB Full Speed
with dedicated supply, allowing customers to keep USB communication
even when the system is powered at 1.8V, and a UCPD controller
compliant with USB Type-C Rev. 1.2 and USB Power Delivery Rev. 3.0
specifications. Smart analog features include a state-of-the-art
analog-to-digital converter (ADC), two power-gated
digital-to-analog converters (DAC), two ultra-low-power
comparators, and two operational amplifiers with external or
internal follower routing and programmable-gain amplifier (PGA)
capability.
As part of the industry-leading STM32 family of MCUs, the
STM32L5 series is fully supported by the STM32 ecosystem and
features its own STM32CubeL5 one-stop-shop software package, which
includes Hardware Abstraction Layer and Low-Level drivers,
FreeRTOS, Trusted Firmware-M (TF-M), Secure Boot and Secure
Firmware Update (SBSFU), USB-PD device driver, MbedTLS and
MbedCrypto, FatFS file system, and Touch Sensing drivers. In
addition, the STM32CubeL5 features more than 300 project examples
that can run on the STM32L552E-EV evaluation board, STM32L562E-DK
discovery kit, and NUCLEO-L552ZE-Q. These projects can be compiled
with the Arm Keil® development tool, IAR or STM32CubeIDE
toolchains, and are delivered with a STM32CubeMX configuration
file, enabling easy customization and code update.
Starting at $2.60 in 1k quantities, the STM32L5x2 MCUs are in
full production and available now in standard temperature grade
(-40°C to +85°C) for consumer and commercial applications, or
high-temperature grade specified from -40°C to +125°C for
challenging environments.
You can also read our blogpost at
https://blog.st.com/stm32l5-trustzone-security/
STM32 is a registered and/or unregistered trademark of
STMicroelectronics International NV or its affiliates in the EU
and/or elsewhere. In particular, STM32 is registered in the US
Patent and Trademark Office.
About STMicroelectronicsST is a global
semiconductor leader delivering intelligent and energy-efficient
products and solutions that power the electronics at the heart of
everyday life. ST’s products are found everywhere today, and
together with our customers, we are enabling smarter driving and
smarter factories, cities and homes, along with the next generation
of mobile and Internet of Things devices.
By getting more from technology to get more from life, ST stands
for life.augmented.In 2019, the Company’s net revenues were $9.56
billion, serving more than 100,000 customers worldwide. Further
information can be found at www.st.com. For Press
Information Contact: Michael Markowitz Director Technical
Media Relations STMicroelectronics Tel: +1 781 591 0354 Email:
michael.markowitz@st.com
- P4231S -- Feb 13 2020 -- STM32L5_FINAL FOR PUBLICATION
- P4231S -- Feb 13 2020 -- STM32L5_IMAGE
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