STM32WB55 P-NUCLEO-WB55 Platform

By STMicroelectronics 505

STM32WB55 P-NUCLEO-WB55 Platform

STMicroelectronics' STM32WB platform is an evolution of the well‐known market-leading STM32L4 ultra-low-power series of MCUs. It provides the same digital and analog peripherals suitable for applications requiring extended battery life and complex functionalities.

The STM32WB proposes a variety of communication assets, a practical crystal-less USB2.0 FS interface, audio support, an LCD driver, up to 72 GPIOs, an integrated SMPS for power consumption optimization, and multiple low-power modes to maximize battery life.

On top of wireless and ultra‐low‐power aspects, a focus was placed on embedding security hardware functions such as a 256‐bit AES, PCROP, JTAG fuse, PKA (elliptic curve encryption engine), and Root Secure Services (RSS). The RSS allows authenticating OTA communications, regardless of the radio stack or application.

The STM32WB55 Bluetooth 5 certified device offers Mesh 1.0 software support, multiple profiles, and flexibility to integrate proprietary BLE stacks. OpenThread-certified software stack is available. The radio can also run BLE/OpenThread protocols concurrently. The embedded generic MAC allows the usage of other IEEE 802.15.4 proprietary stacks like Zigbee®, or proprietary protocols, giving even more options for connecting devices to the Internet of Things (IoT).

STM32WB dual-core MCUs with wireless support are based on an Arm® Cortex®‐M4 core running at 64 MHz (application processor) and an Arm Cortex‐M0+ core at 32 MHz (network processor). With two independent cores, this innovative architecture is optimized for real time execution (radio related software processing), resource use flexibility, power management, and BOM cost, to bring better user experience.

  • PCB antenna and SMA connectors
  • Flexible power supply supporting CR2032
  • Dual USB port (application/debug)
  • Multiple USER switch/LEDs
  • Supports Arduino™ and ST morphoconnectors
  • Embedded ST-LINK/V2-1 debugger and programmer
  • Arm MbedEnabled™ USB dongle: STM32WB55CGU6 MCU
  • PCB antenna and UFL connectors
  • Cuttable PCB

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