OpenThread protocol implements all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support. It requires a small memory footprint and is highly portable. It is ideally suited for IPv6 based low power wireless device to device communication for home applications.
Our OpenThread portfolio:
Based on ST’s best-in-class, ultra-low-power STM32L4 microcontrollers, STM32WB dual-core wireless MCUs with OpenThread stack supports the IEEE 802.15.4 communication protocol in both single and concurrent mode, covering a wide spectrum of IoT application needs.
The STM32WB is a certified component for whatever Full Thread Device (FTD) or Minimal Thread Device (MTD) type of role is intended.
STM32WB series is a Thread certified component.
Our wide choice of packages, including QFN, BGA, LGA86, Wafer Level Chip Scale Package (WLCSP) and pre-certified ready to use module, is complemented by a rich STM32Cube evaluation and development environment for speeding up time to market.

STM32WB dual-core wireless MCU series and its certified OpenThread software stack give you access to an OpenThread solution for IP-based low-power wireless mesh networks which also supports BLE 5.2 concurrent mode.IEEE 802.15.4 is a technical standard – maintained by the IEEE 802.15 working group – that defines the physical layer and media access control (MAC) specifications for low-rate wireless personal area networks (LR-WPANs).
It thus provides a generic standard MAC layer that can be the basis for protocols – including ZigBee and Thread – which then define the upper layers of the stack. OpenThread in an open-source implementation of Thread® standard based on the broadly supported IEEE 802.15.4 radio standard.
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STM32WB55RC
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256 Kbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55VG
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55VY
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 640 Kbytes of Flash memory,Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55VE
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512 Kbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55CC
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256 Kbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55RE
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512 Kbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55VC
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256 Kbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55CG
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB5MMG
Ultra-low-power Module - Dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB55RG
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, LCD, AES-256
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STM32WB35CE
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512 Kbytes of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, AES-256
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STM32WB35CC
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 256 Kbytes of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, AES-256
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STM32WB55CE
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32MHz with 512 Kbyte of Flash memory, BLE 5.2, 802.15.4, USB, LCD, AES-256
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STM32WB30CE
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz with 512 Kbytes of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, USB, AES-256
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STM32WB50CG
Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0 32MHz with 1 Mbyte of Flash memory, Bluetooth LE 5.2, 802.15.4, Zigbee, Thread, AES 256