Ultra-low power multi-modulation wireless STM32WL3x microcontrollers line now expanding.
Based on Arm Cortex®-M0+ core, sub-GHz radio, and wideband wake-up radio, STM32WL3x microcontrollers support multiple modulations and an IQ interface for custom modulations for even more flexibility.
The STM32WL3x is a highly integrated long-range wireless solution for IoT devices offering a simplified design approach and low power consumption for extended battery life.
It offers the essential features for wireless IoT devices, including:
- All-in-one application processor SoC. Optimizes the bill of materials (BOM), reducing the end device footprint and design complexity.
- Long-range connectivity with RX sensitivity up to -132 dBm, programmable TX power up to +20 dBm.
full flexibility
- Supports various modulations, includes an IQ interface for customized protocols, and complies with global radio frequency regulations for major sub-GHz ISM bands: 159–185 MHz¹, 276–319 MHz², 413–479 MHz, and 826–958 MHz.
battery life
- Extends battery life by reducing the power consumption of wireless applications: best-in-class low power transmit current (10 mA at 10 dBm), enabling 10 years battery life in many applications and the use of energy harvesting.
1 Available on dedicated P/N (STM32WL3xxxxxA)
2 Available only for STM32WL3R line
STM32WL3x product types
This line is ideal for water and gas meters, as well as heat cost allocators.
RF bands: 169 MHz*, 433 MHz, 868 MHz, and 920 MHz
* Available on dedicated P/N (STM32WL3xxxxxA)
This line excels in applications such as smart homes, asset tracking, and alarm systems.
RF bands: 433 MHz, 868 MHz, 920 MHz
This line excels in applications such as remote control. It is available in bidirectional and TX-only versions (P/N: STM32WL3RxxxxX)
RF bands: 315 MHz, 433 MHz, 868 MHz, and 920 MHz
This line is defined to be used as an open network coprocessor.
RF bands: 433 MHz, 868 MHz, 920 MHz
Applications
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Development tools for STM32WL3x
The STM32WL3x ecosystem provides developers with a comprehensive suite of tools and resources, streamlining application development with the STM32Cube ecosystem.
STM32Cube firmware package
STM32WL3x is fully integrated into the STM32Cube ecosystem, ensuring seamless integration with the STM32CubeWL3 firmware package, STM32CubeMX code, STM32CubeProgrammer, STM32CubeMonitor, and STM32CubeIDE.
Radio development tools
WiSE-RadioExplorer is a graphical user interface for interacting with STM32WL3x line devices and evaluating their radio capabilities, and WiSE-RadioCodeGen , a PC application for building flowgraphs that define radio actions using a sequencer driver, are also available.
STM32WL3 IPDs
A portfolio of 8 RF integrated passive devices (IPDs), MLPF-WL-0xD3 RF IPDs, is available and ready to be used as STM32WL3 companion devices. RF IPDs, integrating into a tiny footprint the RF BoM of harmonic filters and impedance matching, can be used to speed up RF design and time-to-market.
Discover our evaluation boards and STDES for STM32WL3x lines
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Pre-certified reference designs
Resources to get you started: schematics, layout, BoM.
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