ST Lança STM32WB Dual-Core Wireless MCUs: Ultra-Low-Power, Real-Time Performance para IoT

A STMicroelectronics revelou a família STM32WBx5 de dual-core wireless microcontrollers, fundindo Bluetooth 5, OpenThread e Zigbee 3.0 connectivity com comprovada ultra-low-power architecture.

Dual-Core: Cortex-M4 + Cortex-M0+ para Radio

O core do STM32WBx5 é um poderoso Cortex-M4 que herda o energy-efficient design do STM32L4, emparelhado com um dedicated Cortex-M0+ que gere o on-chip radio. Juntos entregam real-time performance enquanto permitem concurrent wireless-protocol handling, tornando o MCU ideal para remote sensors, wearable trackers, building-automation, peripherals, drones e wide range de IoT applications.

Security Baked-In: CKS, PKA, Hardware Encryption

Security é baked into the design. O MCU incorpora Customer Key Storage (CKS), Public Key Authorization (PKA) e hardware encryption engines para ambos radio MAC e higher-layer protocols. O Cortex-M0+ também fornece OTA-secure firmware updates para application e radio stack, salvaguardando device integrity e intellectual property enquanto simplifica product management.

Memória e Periféricos

Com até 1 MB on-chip Flash e Quad-SPI interface, developers podem manter BOM costs low e small footprint. Additional peripherals incluem crystal-less Full-Speed USB port, 32 MHz RF oscillator com trimming capacitors, touch-sense controller, LCD controller, analog peripherals e multiple timers e watchdogs. O on-chip balun assegura clean antenna connection.

Power Efficiency Cornerstone

Power efficiency é cornerstone do STM32WBx5. O MCU suporta multiple low-power modes, incluindo 13 nA shutdown state, adaptive voltage scaling e adaptive real-time ART accelerator. Estas features traduzem-se em extended battery life para self-powered devices.

Integrated Radio High RF Performance

O integrated radio entrega high RF performance com minimal consumption. Programmable output power até +6 dBm em 1 dB steps, 5.2 mA current draw a 0 dB transmit power e -96 dBm receive sensitivity a 1 Mbps BLE rate permitem robust links over 102 dB budget. External power amplifiers também suportados para longer ranges.

STM32Cube Ecosystem Simplifica Development

O STM32Cube ecosystem da ST simplifica development. O STM32CubeWB package fornece peripheral drivers, middleware e connectivity libraries, enquanto o STM32WB55 Nucleo (P-NUCLEO-WB55) board acelera prototyping. O novo STM32CubeMon-RF tool oferece RF testing e custom scripting, further shortening time-to-market.

Package Range

O STM32WBx5 está disponível numa gama de packages, desde UFQFPN48 a UFBGA129, dando designers flexibility para balance cost, size e I/O requirements.