STMicroelectronics BlueNRG-2N BLE Wireless Network Coprocessors

STMicroelectronics BlueNRG-2N BLUETOOTH® Low Energy Wireless Network Coprocessors integrate an Arm® Cortex® M0 core, power management, clocks, Bluetooth low energy radio, random number generator (RNG), external microcontroller interface (SPI/UART), and public-key cryptography (PKA). The BlueNRG-2N embeds the STM state-of-the-art RF radio IPs, combining unparalleled performance with extremely long battery lifetime, making it an ideal solution for Bluetooth low energy applications.

The STM BlueNRG-2N Bluetooth Low Energy Wireless Network Coprocessors is Bluetooth 5.0 certified, ensuring interoperability with the latest generation of smartphones and other host devices. The BlueNRG-2N is fully compliant with Bluetooth core specification version 5.0. It supports enhanced features such as state-of-the-art security, privacy, and extended packet length for faster data transfer up to 700kbps at the application level.

The Bluetooth low energy stack runs on the embedded ARM Cortex M0 core and is stored into the on-chip non-volatile Flash memory. The stack can be easily upgraded via SPI/UART as well through the dedicated STMicroelectronics software tools.


  • Bluetooth 5.0 certified and BLE 4.2 compliant
    • Multi-master to multi-slave communication guaranteed
    • 2 masters to 6 slaves simultaneously
    • Up to 8 simultaneous connections handled
    • LE data length extension (up to 700kbps at application level)
    • Over-the-air firmware update is 2.5 times faster
    • LE Privacy 1.2
    • Reduces the ability to be tracked over a period of time by changing the address on a frequent basis without involving the HOST and saving battery life
    • LE secure connections
    • The pairing mechanism is established with the elliptic curve Diffie-Hellman (ECDH) key agreement protocol enabling a secure key exchange mechanism preventing eavesdropping
  • Low-power radio performance
    • Sleep current consumption down to 900nA
    • TX current consumption 6.8mA (@ -2dBm, 3.0V)
    • RX current consumption 6.2mA (@ sensitivity level, 3.0V)
    • Up to +8dBm programmable output power level (@ antenna connector)
    • Excellent RF link budget (up to 96dB)
    • Integrated DC/DC step-down converter and LDO regulators


  • Watches
  • Fitness, wellness, and sports
  • Consumer medical
  • Security/proximity
  • Remote control
  • Home and industrial automation
  • Assisted living
  • Mobile phone peripherals
  • Lighting
  • PC peripherals

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STMicroelectronics BlueNRG-2N BLE Wireless Network Coprocessors

RF Software Layers Diagram

Block Diagram - STMicroelectronics BlueNRG-2N BLE Wireless Network Coprocessors
Published: 2020-08-07 | Updated: 2023-09-21