STMicroelectronics STM32WB Wireless Microcontroller Now Supports Zigbee 3.0

July 10, 2020, China – The STMicroelectronics STM32WB55 wireless microcontroller now supports Zigbee® 3.0 based ON the Zigbee PRO protocol stack, enabling developers to leverage the interoperable, power-efficient Zigbee networking technology for home Automation, smart lighting, smart buildings and other broader IoT connectivity projects.

Zigbee 3.0 integrates the networking capabilities of consumer electronics and industrial applications in the Zigbee specification, a move that has prompted major players in the consumer electronics and Internet markets to deploy Zigbee networking technology on new smart home products. STMicroelectronics is a long-term supporter of Zigbee technology, a member of the Zigbee Alliance Council, a member of the Zigbee Alliance China Member Group (ZMGC), and a member of the Zigbee Alliance Smart Home Internet of Things (CHIP) working group.

The Zigbee 3.0 software developed by STMicroelectronics for the STM32WB55 includes the acclaimed Exegin Zigbee PRO protocol stack. The stack is free to use and fully supported by STMicroelectronics software. The protocol stack is used in Exegin products that have obtained the Zigbee Golden Units certificate and is designated as the test lab reference stack. To further simplify development work, STMicroelectronics software supports 46 Zigbee 3.0 clusters, allowing users to quickly set up device functions. Another 21 clusters support legacy products.

Leslie Mulder, President of Exegin, said: “This is a milestone for the Zigbee Alliance, and with the introduction of ST’s Zigbee 3.0 products, Zigbee technology maturity is about to reach a new level, which will help solidify Zigbee and ST in the IoT space. leadership.”

The STM32WB55 microcontroller also supports Thread and Bluetooth 5.0, with over-the-air update (OTA) capability. STM32WB55 currently has a total of 10 products, with a variety of packages available, and the flash memory capacity is 256KB-1MB. Additional versions are planned for the next quarter and will provide developers with greater choice flexibility to balance application performance and cost goals. These products are based on the Arm® Cortex®-M4 core with a floating-point unit, DSP instruction set, and memory protection unit (MPU) for enhanced application security. The Arm® Cortex®-M0+ coprocessor is designed to handle the on-chip integrated IEEE 805.15.4 RF and MCU’s network protection functions, ensuring that the real-time underlying software runs smoothly without compromising application performance. The link budget of the RF transceiver is 106dB, ensuring stable and reliable long-distance communication connections.

ST’s patented ultra-low-power microcontroller technology, as well as a wealth of features including RF baluns integrated on-chip, ensure that the STM32WB55 device can help designers meet the power and size constraints of a variety of IoT and wearable devices. strict requirements. The STM32WB55 has a wealth of analog and system peripherals, as well as network protection and ID cryptographic functions, including secure firmware installation (SFI), customer key storage, hardware public key authorization (PKA), and cryptographic accelerators. Capacitive touch and LCD controllers also simplify user interface integration.

ST’s Zigbee 3.0 software is now included in the STM32CubeWB MCU package, which provides embedded software including the STM32WB microcontroller Low Level (LL) API and Hardware Abstraction Layer (HAL) drivers, as well as Bluetooth® 5.0, Mesh V1 .0 and Thread® software libraries, FreeRTOS™ kernel, FatFS file system, and STMTouch™ capacitive sensing software library. By providing the STM32CubeMonitor-RF RF test tool and STM32CubeMX microcontroller configuration and code generation tools, the STM32Cube ecosystem ensures easier development.