BlueNRG-2N Ultra-Low-Power Network Coprocessor Solution

The BlueNRG-2N is STMicroelectronics’ state-of-the-art RF radio IPs which combine unparalleled performance with extremely long battery life. It is fully compliant with Bluetooth® core specification version 5.0 and supports enhanced features such as state-of-the-art security, privacy, and extended packet length for faster data transfer up to 700 kbps at the application level.

The BlueNRG-2N is Bluetooth 5.0 certified ensuring interoperability with the latest generation of smartphones and other host devices. It comes with a pre-programmed, certified, upgradable, and secure Bluetooth LE stack; only ST-signed BLE stack images can run over it. The Bluetooth low energy stack runs on the embedded Arm® Cortex®-M0 core. The STMicroelectronics BLE stack is stored into the on-chip non-volatile Flash memory and it can be easily upgraded via SPI/UART as well through the dedicated STMicroelectronics software tools.

Features

• Bluetooth LE 5.0 Certified
• LE data length extension (up to 700 kbps at the application level, enabling 2.5 times faster over-the-air firmware update)
• LE Privacy 1.2
• LE Secure Connections
• Sleep current consumption down to 900 nA
• TX current consumption 6.8 mA (@ -2 dBm, 3.0 V)
• RX current consumption 6.2 mA (@ sensitivity level, 3.0 V)
• Up to +8 dBm programmable output power level (@ antenna connector)
• Excellent RF link budget (up to 96 dB)
• Multi-master to multi-slave communication guaranteed
• 2 masters to 6 slaves simultaneously
• Up to 8 simultaneous connections handled
• 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
• The pairing mechanism is established with the elliptic curve Diffie-Hellman (ECDH) key agreement protocol enabling a secure key exchange mechanism preventing eavesdropping
• Integrated DC-DC step-down converter and LDO regulators
• Selectable SPI or UART interface (via 1 GPIO)