超低消費電力マイクロコントローラSTM32L4シリーズ
STは、高い柔軟性により、クラス最高の超低消費電力特性を実現する新しいアーキテクチャを構築しました。STM32L4シリーズは、超低消費電力マイクロコントローラ（マイコン）の効率を比較するために標準化されたEEMBC™ ULPMark®テストにおいて、447ULPMark-CPおよび167ULPMark-PPのスコアを達成しました。STM32L4シリーズは、超低消費電力マイコンとして、きわめて優れた性能を提供します。浮動小数点ユニットとARTアクセラレータ™を備えたArm® Cortex®-M4コアにより、80MHz動作時の性能は100DMIPSに達します。
STM32L4シリーズは、消費電力と処理性能のバランスをとる動的電圧スケーリング、STOPモードでも使用可能な低消費電力ペリフェラル（LP UART、LPタイマ）、セーフティ / セキュリティ機能、優れた数々のペリフェラルに加え、オペアンプ、コンパレータ、LCDドライバ、12bit D/Aコンバータと16bit A/Dコンバータ（ハードウェア･オーバーサンプリング対応）などの高度な低消費電力アナログ･ペリフェラルを搭載しています。
同シリーズにはSTM32L4x1（アクセス･ライン）、STM32L4x2（USBデバイス）、STM32L4x3（USBデバイス、LCD）、STM32L4x5（USB OTG）、STM32L4x6（USB OTG、LCD）など、各種製品ラインが用意されています。
また、他のSTM32マイコンとのピン配置互換性を備えているため、優れた柔軟性を提供すると共に、簡単に設計を移行することができます。
- 超低消費電力モード： 8nA（バックアップ･レジスタ使用、リアルタイム･クロック（RTC）なしの場合）（ウェイクアップ･ピン x 5）
- 超低消費電力モード + RTC：200nA（バックアップ･レジスタとRTC使用の場合）（ウェイクアップ･ピン x 5）
- 超低消費電力モード + 8KB RAM使用の場合：195nA
- 超低消費電力モード + 8KB RAM + RTC使用の場合：340nA
- 動的RUNモード：最小で28μA/MHz
- ウェイクアップ時間： 5μs
注目ビデオ
Discover the large and pin-to-pin compatible STM32 ultra-low-power portfolio. This offer covers more than 2 billion of applications like IoT, Industrial sensors, wearables & home automation.
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!
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.
Getting started with STM32L4
- Purchase a 32-pin, 64-pin or 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
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