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STMicroelectronics BlueNRG-2N

Bluetooth® low energy wireless network coprocessor

The BlueNRG-2N is an ultra-low-power (ULP) network coprocessor solution for Bluetooth^® low energy applications. It embeds the STMicroelectronics’s RF radio IPs combining unparalleled performance with extremely long battery life.

It is fully compliant with Bluetooth core specification version 5.0 and supports enhanced features such as security, privacy, and extended packet length for faster data transfer up to 700 kbps at the application level. It runs on the embedded Arm^® Cortex^®-M0 core. The BLE stack is stored into the on-chip non-volatile Flash memory and it can be easily upgraded via SPI/UART or STMicroelectronics software tools.

Key features

Sleep current consumption down to 900 nA
TX current consumption 6.8 mA (at -2 dBm, 3.0 V)
RX current consumption 6.2 mA (at sensitivity level, 3.0 V)
Multi-master to multi-slave communication guaranteed

Additional features

Low-power radio performance:
- Sleep current consumption down to 900 nA
- TX current consumption 6.8 mA (at -2 dBm, 3.0 V)
- RX current consumption 6.2 mA (at sensitivity level, 3.0 V)
- Up to +8 dBm programmable output power level (at antenna connector)
- Excellent RF link budget (up to 96 dB)
- Integrated DC-DC step-down converter and LDO regulators
Bluetooth^® 5.0 certified:
- 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 700 kbps at the application level)
- Over-The-Air (OTA) 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
Additional Benefits:
- Cost competitive BLE network processor solution:
  - Minimizing Bluetooth LE connectivity software efforts in a cost-efficient flavor
- Pre-loaded, upgradable, and certified Bluetooth LE stack:
  - State-of-the-art communication, security, privacy, and Data Length Extension for a faster data transfer
- STM32CubeIDE compliant :
  - User-friendly development tools
- 10-years longevity: Part of ST longevity program:
  - Long-term availability for industrial applications