Next-generation Bluetooth Low Energy SoC from ST

Introducing its latest-generation Bluetooth Low Energy (BLE) System-on-Chip, ST Microelectronics hghlights low power, small size, and high performance to enable widespread deployment of energy-conscious, space-constrained applications with BLE connectivity. The device provides state-of-the-art security and is Bluetooth 5.0-certified
Next-generation Bluetooth Low Energy SoC from ST
ST uses an ARM Cortex-M0 core to provide low-power, extremely efficient, 32-bit processing performance for BlueNRG-2. Other integrated features include cryptographic processing, power management, clock management, and up to 256 kB of Flash memory giving extra flexibility to handle code and data storage. Multiple power-saving modes, including standby mode drawing just 0.5 µA, help meet functional requirements with a minimal power budget. The integrated BLE radio with +8 dBm RF output power maximizes communication range and saves overall energy consumption by avoiding data errors and retries. The device is specified for operation up to 105°C, allowing use in a wide range of scenarios including automotive environments.
Developers using BlueNRG-2 can also take advantage of seamless interconnection with the ST MEMS sensor portfolio, which includes accelerometers, gyroscopes, magnetometers, Inertial Measurement Units (IMU), pressure sensors, and other environmental sensors. An integrated 2-channel, 10-bit analogue-to-digital converter (ADC) provides a convenient interface for analogue front-end transducers, and a Pulse Digital Modulation (PDM) interface simplifies connecting a digital MEMS microphone for natural-speech voice-controlled applications. The increased memory size and the high-efficiency core architecture allows running ST Open.MEMS libraries with low impact on the overall power consumption. The sensors and libraries, together, enable developers to implement advanced capabilities such as gesture recognition and activity tracking.
ST has also developed a dedicated ultra-miniature balun (BALF-NRG-02D3) for its BlueNRG devices. Integrating a matching network and harmonics filter, the enhanced balun simplifies RF complexity and provides optimized link budget in a less than 1.2 mm² footprint. Designed on non-conductive glass substrate, it offers low dispersion over temperature, surpassing other solutions available in the market.
Read more: Next-generation Bluetooth Low Energy SoC from ST

About The Author

Ibrar Ayyub

I am an experienced technical writer with a Master's degree in computer science from BZU Multan University. I have written for various industries, mainly home automation and engineering. My writing style is clear and simple, and I am skilled in using infographics and diagrams. I am a great researcher and am able to present information in a well-organized and logical manner.

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