STMicroelectronics – Bluetooth Low Energy SoC offers low power consumption and reliable radio connections


STMicroelectronics has introduced the BlueNRG-1, a Bluetooth® Low Energy wireless System-on-Chip (SoC) which provides a low data-rate, short-range radio connection which consumes very little power.

Bluetooth Low Energy technology is ideal for energy-constrained smart sensors and connected devices. Adoption is expected to be rapid, because of the proliferation of Bluetooth Smart Ready tablets and smartphones. These provide a convenient user interface for interacting with Bluetooth Low Energy, commonly known as Bluetooth Smart, devices.

The integrated radio transceiver of the BlueNRG-1 is extremely power-efficient in the modes frequently used by devices, such as beacons when setting-up short-duration connections for exchanges such as sharing offers with shoppers’ smartphones.

The SoC’s ability to move quickly between power-saving and active modes helps to extend battery life. In addition, RF output power is a high 8dBm, helping to ensure clear and reliable communication for optimum efficiency, even in noisy environments.

The BlueNRG-1 also offers value-added features which make device design easier. These include a dedicated digital-microphone input which simplifies voice-enabled applications, and a 105°C maximum operating temperature suitable for smart-lighting and automotive applications.

The BlueNRG-132 is supplied in a 5mm x 5mm QFN-32 package, and the BlueNRG-134 in a 2.7mm x 2.6mm wafer-level chip-scale package ideal for space-constrained applications.


  • 32MHz ARM® Cortex®-M0 MCU core
  • 160kbytes of on-chip Flash memory
  • ST Bluetooth Low Energy firmware stack
  • <1μA stand-by current
  • 10-bit ADC
  • SPI and I2C interfaces
  • Up to 15 user-configurable I/Os
  • Complies with Bluetooth specification v4.2


  • Retail technology
  • Wearable devices
  • Connected home appliances
  • Automotive equipment
  • Industrial systems
  • Medical equipment

The STEVAL-IDB007V1 is an evaluation platform based on the BlueNRG-1 Bluetooth SoC.

Orderable Part Number: STEVAL-IDB007V1