STMicroelectronics - BlueNRG-2



Bluetooth® low energy wireless system-on-chip



The BlueNRG-2 is a very low power Bluetooth low energy (BLE) single-mode system-on-chip, compliant with Bluetooth specifications.

The BlueNRG-2 extends the features of award-winning BlueNRG network processor, enabling the usage of the embedded Cortex M0 to run the user application code.

The BlueNRG-2 includes 256 kB of programming Flash memory, 24 kB of static RAM memory with retention (two 12 kB banks) and SPI, UART, I²C standard communication interface peripherals. It also features multifunction timers, watchdog, RTC and DMA controller.

An ADC is available to interface with analog sensors, and to read the measurement of the integrated battery voltage sensor. A digital filter is available to process a PDM stream.

The BlueNRG-2 offers the same excellent RF performance of the BlueNRG radio, and the integrated high efficiency DC-DC converter keeps the same ultra-low power characteristics, but the BlueNRG-2 improves the BlueNRG sleep mode current consumption allowing a further increase in the battery lifetime of the applications. s from 32-pin to 100-pin.



Features

• Operating supply voltage: from 1.7 to 3.6 V
• Integrated linear regulator and DC-DC step-down converter
• Operating temperature range: -40 °C to 105 °C
• High performance, ultra-low power Cortex-M0 32-bit based architecture core
• Programmable 256 kB Flash
• 16 or 32 MHz crystal oscillator
• Battery voltage and temperature sensors
• Excellent RF link budget (up to 96 dB)
• Accurate RSSI to allow power control
• 8.3 mA TX current (@ -2 dBm, 3.0 V)
• Down to 1 µA current consumption with active BLE stack (sleep mode)
• ST companion integrated balun/filter chips are available
• QFN32, QFN48 and WCSP34 package options



Application

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



Benefits

• Bluetooth Mesh-ready to extend network coverage to large areas
• Bluetooth 5.0 certification to ensure interoperability with the latest generation of smartphones and tablets
• State-of-the-art security and privacy features to protect against Eaves Dropping attack during pairing stage
• Extended battery life thanks to highest radio efficiency in the market combined with an ultra-low latency technology
• Faster data transfer rate with packet length extension to boost the Over-The-Air FW update in the field



Block Diagram



BlueNRG-2 architecture




Downloads








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