Summary of STM32WB0 MCU Series: The Future of Bluetooth Low Energy 5.3 Wireless Connectivity
The STM32WB0 series is a compact, energy-efficient Bluetooth Low Energy 5.3 certified MCU family featuring an Arm Cortex-M0+ at 64 MHz, 512 KB flash, 64 KB RAM, and high-performance 2.4 GHz radio. It delivers up to 2 Mbps, -104 dBm sensitivity, +8 dBm output, direction finding, and low power consumption. Integration (balun, capacitor-less 32 MHz crystal), SMPS in STM32WB09, and a broad development ecosystem reduce BOM, cost, and time-to-market for IoT, industrial, and consumer BLE designs.
Parts used in the STM32WB0 project:
- STM32WB0 microcontroller series (general)
- STM32WB09 microcontroller (specific product line)
- Arm Cortex-M0+ core (integrated in MCU)
- 512 KB flash memory (on-chip)
- 64 KB RAM (on-chip)
- 2.4 GHz radio IP (integrated)
- Balun (integrated in small package)
- Capacitor-less 32 MHz crystal (integrated support)
- Switched-mode power supply (SMPS) step-down converter (in STM32WB09)
- Peripherals: ADC and timers (integrated)
The STM32WB0 microcontroller series allows for reliable wireless connectivity through a compact and energy efficient design.
Certified to the Bluetooth Low Energy 5.3 standard, the STM32WB0 provides an outstanding wireless radio and low-power capabilities that make it well-suited for wireless applications where cost and energy efficiency are priorities.
What the STM32WB0 offers
The STM32WB0 offers high performance wireless connectivity through its best-in-class radio, providing robust and stable connections. It features an Arm Cortex-M0+ core that operates at 64 MHz along with 512 KB of flash memory and 64 KB of RAM.
Wireless performance is certified and modular stacks developed by ST are robust and well-maintained. High data transfer speeds of up to 2 Mbps ensure fast and reliable transmission of data.
The state-of-the-art radio delivers excellent sensitivity of up to -104 dBm and output power up to +8 dBm, along with direction finding support for accurate Bluetooth location solutions.
Battery life is extended for IoT devices through the radio’s high efficiency of 3.9 mA for transmission and 3.2 mA for reception at peak power, along with power control options. The Cortex-M0+ core consumes only 15.5 μA/MHz.
Costs are lowered through an affordable price point. Integration is maximized through small packages including components like balun and capacitor-less 32 MHz crystals, reducing bills of materials and simplifying circuitry to allow for 2-layer PCBs.
Development is streamlined using an extensive ecosystem that provides hardware designs, radio IPs, Bluetooth stacks, software, tools and resources.
Product types
The STM32WB09 microcontroller line, as the initial product in the STM32WB0 series, integrates ST’s advanced 2.4 GHz radio IP to deliver outstanding wireless performance. The STM32WB09 line contains a highly efficient switched-mode power supply (SMPS) step-down converter that enables unrivaled battery life.
Owing to its 512 KB flash memory, 64 KB RAM, along with intelligent peripherals such as the ADC and timers, the STM32WB09 can address basic to more sophisticated Bluetooth Low Energy applications in industrial and consumer markets. This wide range of capabilities makes it suitable for entry-level to complex wireless designs.
Discover our portfolio
- What wireless standard is the STM32WB0 certified for?
The STM32WB0 is certified to the Bluetooth Low Energy 5.3 standard. - What core and clock speed does the STM32WB0 use?
It uses an Arm Cortex-M0+ core operating at 64 MHz. - How much flash and RAM does the STM32WB0 provide?
The MCU provides 512 KB of flash memory and 64 KB of RAM. - What are the radio sensitivity and output power specifications?
The radio offers sensitivity up to -104 dBm and output power up to +8 dBm. - What data rates does the STM32WB0 support?
It supports high data transfer speeds of up to 2 Mbps. - How energy efficient is the radio and core?
The radio consumes 3.9 mA for transmission and 3.2 mA for reception at peak power, and the Cortex-M0+ core consumes 15.5 μA/MHz. - What integration features reduce BOM and simplify PCB design?
Small packages integrating a balun and support for capacitor-less 32 MHz crystals reduce BOM and enable 2-layer PCBs. - What additional power feature does the STM32WB09 include?
The STM32WB09 integrates a highly efficient SMPS step-down converter to enhance battery life. - What types of applications is the STM32WB09 suitable for?
With 512 KB flash, 64 KB RAM, and peripherals like ADC and timers, it suits entry-level to complex Bluetooth Low Energy applications in industrial and consumer markets.
