STMicroelectronics STM32WB35 and STM32WB30 Value Line MCUs

Click2Contact

STMicroelectronics has expanded its STM32WB portfolio of dual-core multi-protocol microcontrollers (MCUs) by introducing the STM32WB35 and STM32WB30 Value Line.

The ultralow-power MCUs integrate a 2.4 GHz radio managed by a dedicated Arm Cortex-M0+ core, with a 64 MHz Arm Cortex-M4 for the main application, to permit uninterrupted real-time performance. They support Bluetooth Low Energy 5.0, Zigbee 3.0, OpenThread (IEEE 802.15.4) protocols and concurrent modes, with built-in security features. All stacks are fully certified, supported and handled by ST and available free of charge. The devices are suited to large-scale IoT applications such as fleet and resource management, as well as asset monitoring and tracking.

Packaged in QFN48, the products are pin compatible with existing STM32WB5x devices and share common MCU features, giving users flexibility to easily scale and migrate their designs. The MCUs integrate the radio balun, USB2.0 Full Speed device with crystal-less oscillator, embedded capacitors for 32 MHz crystal, and DC/DC step-down converter to minimise bill of materials (BoM) and platform footprint. High RF performance, with programmable output power up to 6 dBm and with a 102 dBm link budget, should ensure connectivity over longer distances, with ultralow power consumption extending battery runtime.

All STM32WB products are supported in the STM32Cube ecosystem, an exhaustive software development suite offering a combination of embedded software libraries and software tools addressing all the needs of a complete project development cycle. The devices are available with up to 512 KB of integrated Flash memory and up to 96 KB of SRAM, with a Quad-SPI interface for connecting to external high-speed memory. They also provide a rich selection of analog peripherals, digital interfaces and fast I/Os, many of which are 5 V tolerant.

With a focus on security, the MCUs integrate secure firmware installation (SFI), hardware encryption for the application and radio stacks, hardware public key authority (PKA), hardware accelerators for state-of-the-art cryptographic algorithms, and support for secure over-the-air (OTA) firmware updates.

For more information: www.st.com/stm32wb.