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STM32超低功耗MCU

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意法半导体的超低功耗MCU平台基于专有的超低漏电流技术和优化设计。

节能型嵌入式应用的设计人员可以基于性能、功耗、安全特性和成本几项做出权衡后，从ST丰富的微控制器系列做出选择：即从STM8L（8位专有内核）直到STM32L4（32位Arm®Cortex®-M4），还包括STM32L0（Arm® Cortex®-M0+）和STM32L1（Arm® Cortex®-M3）。STM32L5（Arm®Cortex®-M33）是丰富的低功耗系列的新增成员，它加强了安全功能。

STM8L/STM32L低功耗解决方案在25到125 °C范围内具有业内最低的电流波动，保证了高温下极低的功耗。在最低功耗模式并维持SRAM数据的情况下，该MCU实现了业界最低的170 nA 电流消耗。低功耗唤醒动作快捷，停止模式下的唤醒时间低至3.5 μs。

STM32L5系列采用Arm® Cortex®-M33和面向Armv8-M架构的TrustZone®，增强了安全功能。STM32L5采用这种新型内核和全新的意法半导体 ART Accelerator™技术（现在也支持外部存储器），CoreMark测试得分为442。

STM32L4系列除了具有意法半导体最佳的超低功耗架构外，还提供了DSP指令、浮点单元（FPU）、更多存储器（高达1 M字节 Flash存储器）以及其它创新特性，使得性能方面可达到
100 DMIPS。

STM32L4+系列是STM32L4的技术升级版，提供更高的性能（从内部闪存执行代码时可达120 MHz/409 CoreMark）、更大的片上内存（高达2 M字节的闪存和640 K字节的SRAM）、更先进的图形处理功能，同时丝毫不影响其超低功耗特性。

STM32L0系列为入门级应用提供了真正的节能解决方案。STM32L0具有低至14引脚的小尺寸封装，内置从8 KB到192 KB的宽范围闪存容量，充分发挥了超低功耗和成本竞争力两大优势。

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STM32L5 Series ultra-low power microcontroller with more security
STM32L5 Series ultra-low power microcontroller with more security

This video is about the STM32L5, our recently announced ultra-low power microcontroller bringing a new security dimension. The STM32L5 is now in full production and all its ecosystem is available including hardware kits, software tools, firmware and all documentations of course. This is our first STM32 based on Cortex-M33 and its Trustzone and using specific ST security implementation - watch the video to find out more!

How to enable TrustZone<sup>®</sup> and start a project with STM32L5
How to enable TrustZone® and start a project with STM32L5

The STM32L5 is based on Arm® Cortex-M33 and TrustZone® technology combined with STMicroelectronics security implementation. On your STM32L562E-DK discovery board, TrustZone is disabled (factory setting) and you can develop as on any other STM32 device. This video shows how to enable TrustZone on STM32L562E-DK discovery using STM32CubeProgrammer and create, compile and debug or run a new project with STM32CubeIDE. It also shows how to open an example project delivered in STM32CubeL5 MCU Package, modify, compile and debug or run it. For further information, you can refer to AN5394 and AN5424 application notes.

STM32L5 MCU Series: Excellence in Ultra-Low-Power with More Security
STM32L5 MCU Series: Excellence in Ultra-Low-Power with More 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 provide a new optimal balance between performance, power and security.

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STM32L5 blog article

The New Security Flagship with TF-M, TrustZone, and so Much More

STM32L5 MCU Series - Marketing presentation

Excellence in Ultra-low-power with More Security

STM32L5 Online Training

Full range of STM32L5 training courses available online

STM32CubeProg

STM32CubeProgrammer (STM32CubeProg) is an all-in-one multi OS software tool for programming STM32 products.

Revolutionize your user experience using STM32 GUI solutions

Discover our latest STM32 ultra-low-power MCUs

  • The new STM32L0x0 Value line incorporates the efficient 32-bit Arm® Cortex®-M0+ core operating at 32 MHz, embedded memories (128 Kbytes of Flash program memory, 512 bytes of data EEPROM and 20 Kbytes of RAM). This STM32L0x0 Value line provides high power efficiency over a wide performance range. This is achieved with a large choice of internal and external clock sources, internal voltage adaptation, and several lowpower modes.
  • The new STM32L412 (no crypto) and STM32L422 (with crypto) devices extend the STM32L4 series with Flash density from 128 to 64 Kbytes. Ideal for cost-sensitive applications, low-pin-count-packages choices range from 32-pin LQFP (5x5mm) to 64-pin BGA (5x5mm) including 36-pin WLCSP (2.58x3.07 mm). Developers will appreciate the slim-form-factor NUCLEO-L412KB board and NUCLEO-L412RB-P including a step down converter.
  • The new STM32L4P5/Q5 MCUs bring additional options to the STM32L4+ series, delivering lower Flash-density devices from 512 Kbytes to 1 Mbyte and 1 Mbyte respectively. Ideal for cost-sensitive applications, these microcontrollers come in low-pin packages ranging from 48-pin QFN (7x7mm) to 169-pin BGA (7x7mm). Development tools including the 144-pin NUCLEO-L4P5ZG board and the STM32L4P5G-DK discovery kit are available.

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