意法半导体扩展了STM32L4技术，提供更优越的性能（最高频率可达120 MHz）、更大容量嵌入式存储（最高达2 MB Flash存储器和640 KB SRAM）、以及更丰富的图形处理能力和连接特性，同时保持一流的超低功耗能力。
STM32L4+系列打破了现有超低功耗领域的处理性能极限，通过执行片内FLASH指令可达到150 DMIPS/409 CoreMark的性能。内嵌640KB SRAM能够支持更多高级消费、医疗和工业领域的低功耗应用的需求。
STM32L4+微控制器提供可根据处理需求进行功耗平衡的动态电压调整功能，用于停止模式的低功耗外设（LP UART、LP定时器），安全和保密特性，大量智能外设，以及诸如运算放大器、比较器、12位DAC和16位ADC（硬件过采样）等先进的低功耗模拟外设。
新的STM32L4+系列还内置了高级图形处理功能，用以实现精彩美妙的用户图形界面。
Chrom‐ART Accelerator™是具备意法半导体专利的2D硬件图形加速器，可以高效处理重复的图形操作任务，在实时处理或者更高级的图形操作任务时可以降低主CPU的处理负荷。
Chrom‐ART加速器与内置的大容量SRAM、Chrom‐GRC™全方位显存优化器、高数据吞吐量的Octo-SPI接口以及高级TFT和DSI控制器共同配合，帮助开发者在基于STM32L4+单芯片超低功耗方案的基础上实现“类似智能手机”的图形用户界面。
STM32L4+系列提供了不同的产品线：STM32L4R5/S5、STM32L4R7/S7 （具有TFT接口）、以及STM32L4R9/S9（具有MIPI-DSI和TFT接口）。
为了简化移植步骤和为用户提供所需的灵活性，STM32L4+与不同的STM32系列均引脚兼容，为您开启通往整个STM32生态体系的大门。
- 超低功耗模式：20 nA，有备份寄存器没有RTC（5个唤醒引脚）
- 超低功耗模式 + RTC：200 nA，具有备份寄存器（5个唤醒引脚）
- 超低功耗模式 + 64 KB RAM：800 nA
- 超低功耗模式 + 64 KB RAM + RTC：1μA
- 动态运行模式：低至43 μA/MHz
- 唤醒时间：5 μs
精选 视频
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.
MadeForSTM32™ is a new quality label delivered by ST, which is granted after an evaluation process. It helps engineers identify third party solutions with the highest level of integration and quality for the STM32 microcontrollers' ecosystem. MadeForSTM32™ is offered to members of the ST Partner Program who want to go one step further in our collaboration, with the overall objective of contributing to a high-quality STM32 ecosystem.
The STM32Cube.AI is an extension pack of the widely used STM32CubeMX configuration and code generation tool enabling AI on STM32 Arm® Cortex®-M-based microcontrollers.
Getting started with STM32L4+
- Purchase a 144-pin Nucleo board, Discovery kit or Evaluation kit for STM32L4+ MCUs.
- Download the STM32CubeL4 embedded software package containing the HAL, LL (low-layer) APIs, and middleware. Then install ST’s STM32CubeMX graphical software configuration tool that supports pinout configuration, code generation and a power consumption calculator. Start with one of the many examples provided or build your own project.
- Get trained watching the STM32L4+ Online Training
- Learn more about STM32L4+ blog article here
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