STM32WL: LoRa Integrated Wireless SoC

ST Microelectronics released it’s first SoC with inbuilt LoRa, STM32WL Series MCUs. The STM32WL System-On-Chip integrates both a general purpose microcontroller and a sub-GHz radio on the same chip.

STM32WL Series MCUs are built on same technology as used for Ultra-Low Power SM32L4 series microcontrollers so they have similar peripherals and low power consumption.


In addition to its wireless and ultra-low-power features, STM32WL microcontrollers include embedded security hardware functions such as 128- / 256-bit AES hardware encryption, PCROP read / write protection, and public-key cryptography with an elliptic curve encryption engine.

STM32WLE5 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. Radio Frequency Range available is 150MHz – 960MHz.

At the moment they have three MCUs in the product family with CPU clock frequency of 48MHz, and Flash Memory 64KB/128KB/256KB and RAM 20KB, 48KB, 64KB.

The MCU comes in UFBGA (73L) Package, it size is 5mm x 5mm.

Read more information on the product page.

Evaluation or Development board is not yet available for this MCU Series yet but ST is probably going to launch it soon.

For now developers can use the STM32L4 Nucleo board and a Semtech expansion board such as the SX1262DVK1DAS, the SX1262DVK1CAS or the SX1262DVK1BAS for evalution till STM32WL Development board is made available.

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