Multi-protocol sub-GHz SoC
Comprehensive tools and resources for STM32WL3x series development
Comprehensive tools and resources for STM32WL3x series development
The one-chip STM32WL3x wireless MCU series is supported by a comprehensive development suite designed to accelerate the time-to-market of LPWAN edge devices. The STM32Cube ecosystem offers tools for firmware development, code generation, programming, monitoring, and RF testing.
This ecosystem accelerates RF design with 8 RF integrated passive devices (IPDs) and pre-certified reference designs, ensuring optimal performance and quicker market entry.
Key benefits
Enables longer battery lifetime
• Low-power consumption radio down to 5.6 mA (RX) and 8 mA (TX @ 10 dbm)
• Low-power autonomous wake up receiver down to 4 µA in always on mode
• MCU low-power mode down to 910 nA with RAM retention
Offers flexible & multi-modulation support
• Multiple modulation, IQ interface and H/W packet handler
• Worldwide deployments: 413-479 MHz, 826-958 MHz
• 169 MHz band support: 159-185 MHz (on STMWL3xxxxxA P/N)
Reduces design complexity
• Lower BOM costs thanks to high integration
• SoC integrating MCU + dual radio + LCD and fluid flow sensing controller
• Internal balun: single-ended RX
Key features
- Up to 256 Kbytes of flash memory
- Arm® Cortex®-M0+ driving both applications and sub-GHz protocols
- 2 x 16 Kbytes of SRAM banks: up to 32 Kbytes
- 1 byte of OTP Store ID, keys, and calibration data
- DMA controller with 8 channels
- 2 x SPI, 2 x I²C, UART, low-power UART
- 12-bit ADC
- 2 general-purpose 16-bit timers, 4+1 PWMs, watchdog timer, RTC, 3 specific sub-GHz IP timers (LP timer)
- Analog LC sensor
- Up to 20-pin LCD driver
Suitable for many applications
Water & gas meters
Heat cost allocators
IoT for smart homes
City infrastructure management
Get started
High band board
NUCLEO-WL33CC1
A high-performance, ultra-low-power development board optimized for the 862-928 MHz high-frequency band, making it ideal for applications requiring robust sub-GHz wireless communication.
Low band board
NUCLEO-WL33CC2
A versatile, ultra-low-power development board optimized for the 412-479 MHz low-frequency band, ideal for applications that need reliable sub-GHz wireless connectivity in lower frequency ranges.
組込みソフトウェア
STM32CubeWL3
A comprehensive, all-in-one package of embedded software components optimized for the STM32WL3x product line microcontrollers.
Windows PC applications
STM32Cube - WL3 radio app
The STM32CubeWISEre is a GUI for interacting with the STM32WL3x line devices and evaluating their radio capabilities. The STM32CubeWISEcg is a PC-based flowgraph application for defining the radio actions to be executed.
On-demand webinar
Simplify your design approach for IoT devices with the low-power long-range STM32WL3