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General-purpose MCUs

STMicroelectronics (STM32) Design Services

STMicroelectronics' STM32 is the broadest Arm Cortex-M microcontroller family, scaling from ultra-low-power (STM32L/U) to high-performance (STM32H) and wireless (STM32WB/WL) parts that share one toolchain.

STM32 is the safe, scalable default for general embedded designs. Because the whole range shares peripherals and the STM32Cube ecosystem, you can move up or down in performance, memory and cost without re-architecting — valuable when requirements shift or parts go short.

Key product families

STM32L / STM32U

Ultra-low-power lines for battery and energy-harvesting designs.

STM32F / STM32G

Mainstream Cortex-M0+/M4 parts balancing cost and capability.

STM32H

High-performance Cortex-M7 for DSP, graphics and demanding control.

STM32WB / STM32WL

Integrated BLE/802.15.4 (WB) and sub-GHz LoRa (WL) wireless MCUs.

When to choose it

  • You want one scalable family across a product line
  • Motor control, mixed-signal, or deterministic real-time control
  • Long-term availability and a large support ecosystem matter

Typical applications

Industrial control & automationMotor drivesMedical instrumentationConsumer & appliances

How Rapid Circuitry designs with STMicroelectronics

Rapid Circuitry designs custom STM32 boards across the range, builds firmware on STM32Cube/HAL or bare-metal, and handles the mixed-signal and motor-control layout that these parts are chosen for.

Frequently asked questions

STM32 vs ESP32 — which should I pick?

Pick STM32 when you need a scalable MCU family, deterministic control, rich analog/motor peripherals, or long-term supply. Pick ESP32 when integrated Wi-Fi/Bluetooth at low cost is the priority. Many products use both — an STM32 for control and an ESP32 for connectivity.

Does STM32 support wireless?

Yes. The STM32WB integrates Bluetooth LE and 802.15.4 (Thread/Zigbee), and the STM32WL integrates a sub-GHz LoRa radio, while other STM32 parts pair with external radios.

Building on STMicroelectronics?

Tell us your requirements and we'll confirm the right part and design the board and firmware around it.

Start your design