Dual-Core Wireless MCUs Deliver Real-Time Performance

STMicroelectronics’ STM32WBx5* dual-core wireless microcontrollers (MCUs) integrate Bluetooth 5, OpenThread, and ZigBee 3.0 connectivity combined with ultra-low-power performance. Fusing features of the company’s STM32L4 Arm Cortex-M4 MCUs and in-house radio managed by a dedicated Cortex-M0+, the STM32WBx5 is power-conscious yet capable of concurrent wireless-protocol and real-time application execution. It’s suited to remote sensors, wearable trackers, building-automation controllers, computer peripherals, drones, and other IoT devices.

 

Security features include Customer Key Storage (CKS), Public Key Authorization (PKA), and encryption engines for the radio MAC and upper layers. Security managed by the Cortex-M0+, including OTA secure firmware update for application and radio stack, protects device integrity and intellectual property, and ensures easy, robust product management.

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Other features include up to 1 MB of on-chip Flash, a Quad-SPI port, crystal-less Full-Speed USB, a 32-MHz RF oscillator with trimming capacitors, touch-sense controller, LCD controller, analog peripherals, and multiple timers and watchdogs. The balun for antenna connection is also integrated. The MCUs also provide multiple power-saving modes including 13-nA Shutdown mode, adaptive voltage scaling, and the adaptive real-time ART Accelerator.

 

The STM32WBx5 line is in production now, priced from $3.26 each/10,000 pieces and $2 each for high-volume orders. For more information, visit the product page.

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