STM32F3シリーズは、72MHzで動作する32bit Arm® Cortex®-M4コア(FPUおよびDSP命令対応)と、以下をはじめとする多数のアナログ・ペリフェラルを集積することで、アプリケーション・レベルのコストを削減し、アプリケーションの設計を簡略化します。

  • 超高速コンパレータ(25ns)
  • プログラマブル・ゲイン・オペアンプ
  • 12bit DAC
  • 5MSPS(メガサンプル毎秒)の超高速12bit A/Dコンバータ(インタリーブ・モードにより最大18MSPS)
  • 高精度16bit ΔΣ A/Dコンバータ(21チャネル)
  • CCM-SRAM:重要なルーチンの実行速度を上げる固有メモリ・アーキテクチャ(性能を43%加速)
  • モータ制御用16bit PWMタイマ(144MHz動作 / 分解能 < 7ns)
  • 電源および温度のドリフトを自己補正する超高分解能タイマ(217ps)




  • STM32F301STM32F302STM32F303汎用製品ライン:コスト効率に優れた基本的なペリフェラル・セットから、最大3つのモータ制御に対応可能な高性能アナログ機能などを多数搭載した製品まで多用途に対応
  • STM32F334:複雑な波形生成とイベント・ハンドラ機能を備えた超高分解能(217ps)タイマ(HRTIM)を搭載し、デジタル電源用途(デジタル・スイッチング・モード電源、照明、溶接、太陽光発電、ワイヤレス充電など)に対応
  • STM32F373:バイオメトリクス・センサやスマート・メータリングなどの高精度計測アプリケーション向けに16bit ΔΣ A/Dコンバータを内蔵し、7通りのゲインを設定可能
  • STM32F3x8ライン:1.8V動作に対応した製品ライン



STM32 Digital Power Ecosystem accelerates
your designs for beginners up to experts


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices


Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices


Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass


Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window

Low side Current Sensing

Returns circuit component values
Provides current error graphs

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:

NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets