STM32 Mainstream MCUs


A scalable set of 32-bit general-purpose MCUs for many applications

The STM32 mainstream series addresses the converging requirements of multiple segments, making it suitable for a wide range of applications.

The well-balanced device architecture matches the basic design needs for consumer markets, where cost constraints and time to market are essential. Built for affordable, robust, and long-shelf-life systems, the STM32 mainstream series supports real-time control applications, such as motor control, up to complex digital power conversion designs.

To support their development, designers can benefit from an extensive set of development tools, including STM32Cube software and libraries, as well as STM32 Nucleo boards, discovery kits, and prototyping boards.

Overview of the STM32 mainstream series

  • The STM32C0 series is the most cost-effective STM32 MCU. Built on the same technological platform as the STM32G0, the STM32C0 ensures you reduce costs while ensuring design quality and reliability.
  • The STM32G0 series offers efficient microcontrollers based on Arm® Cortex®-M0+ cores. Highly integrated, STM32G0 MCUs help developers reduce BOM costs and address cost-sensitive applications, and bring better performance while lowering power consumption. The STM32G0 series supports a wider portfolio in packages and memories while featuring the essentials of the STM32 family.
  • The STM32F0 series includes 32-bit MCUs that are ideal for engineers looking to future-proof their product platform and to standardize their development around the industry-standard Arm Cortex-M0 cores.
  • The STM32F1 series is the pioneer of the STM32 family of 32-bit Arm® Cortex® MCUs. Ensuring high performance with first-class peripherals, it is highly integrated and offered at affordable prices with a simple architecture and tools that are easy to use.
  • The STM32F3 series enables the most demanding real-time control for consumer and industrial applications, thanks to its rich choice of advanced analog peripherals.
  • The STM32G4 series addresses all applications that require an advanced and/or rich analog peripheral set combined with high-performance CPU.

The STM32C0, STM32F0, STM32G0, and STM32F1 MCU series are highly compatible to leave room for future product upgrades. By allowing maximum code reuse, they enable short development cycles for derivative projects.

Read more about the benefits of the 32-bit Arm Cortex-M processor for MCUs here.

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ST’s most affordable 32-bit MCU, makes 32-bit capabilities accessible to all developers

The STM32C0 series bridges the gap between 8- or 16-bit MCUs and higher performance 32-bit MCUs. Powered by the industry-standard Arm Cortex-M0+ core running at 48 MHz, the STM32C0 lets developers do more with less. It offers up to 32 Kbytes of Flash memory and 6 to 12 Kbytes of RAM, in a variety of 8- to 48-pin packages. 

  • Affordability: helps you reduce costs thanks to an attractive price point and an optimized BOM
  • Reliability: benefits from proven STM32 quality & reliability
  • Continuity: consistent pinout with STM32G0 and shares same technological platform


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:
Solar Battery Charger

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
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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