Complementing the STM32 RF connectivity portfolio, the STM32WL System-On-Chip integrates both a general purpose microcontroller and a sub-GHz radio on the same chip.
Built on Arm® Cortex®‐M4 and Cortex®-M0+ cores (single- and dual-core architectures available), STM32WL microcontrollers support multiple modulations– LoRa®, (G)FSK, (G)MSK, BPSK – to ensure flexibility in wireless applications with LoRaWAN®, Sigfox, W-MBUS, mioty® or any other suitable protocol in a fully open way.
– STM32WL5 15 - Communication-SubGHz Radio (SUBGHZ) - Invidious
STM32WL microcontrollers feature a sub-GHz radio based-on Semtech SX126x to meet the requirements of a wide range of Low-Power Wide Area Network (LPWAN) wireless applications in industrial and consumer Internet-of-Things (IoT).
STM32WL microcontrollers comply with the physical layer requirements of the LoRaWAN® specification released by the LoRa Alliance®. Available LoRa®, (G)FSK, (G)MSK and BPSK modulations can also be used in legacy and proprietary protocols, such as Sigfox or W-MBUS for example.
The radio is suitable for systems targeting compliance with radio regulations including, but not limited to, ETSI EN 300 220, FCC CFR 47 Part 15, China regulatory requirements and the Japanese ARIB T-108. Continuous frequency coverage from 150 to 960 MHz enables the support of all major sub-GHz ISM bands around the world.
The STM32WLEx (M4 single-core) and STM32WL5x (M4 and M0+ dual-core) lines include a wide variety of communication features including up to 43 GPIOs, an integrated SMPS for power consumption optimization, multiple low-power modes to maximize battery life. A dual-power output and wide linear frequency range ensure worldwide compatibility.