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STMicroelectronics BlueNRG-2 low energy wireless system

The BlueNRG-2 is a very low power Bluetooth low energy (BLE) single-mode system-on-chip, compliant with Bluetooth specification V4.2.

STMicroelectronics BLUENRG-2 product image

The BlueNRG-2 is a very low power Bluetooth low energy (BLE) single-mode system-on-chip, compliant with Bluetooth specification V4.2. It 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 for interfacing with analog sensors, and for reading the measurement of the integrated battery monitor. A digital filter is available for processing a PDM stream. 

 

Key features

  • Bluetooth low energy single mode system-on-chip
  • Bluetooth 4.2 compliant, LE Data Packet Length Extension
  • Operating temperature range: -40 °C to 105 °C
  • Cortex-M0 32-bit core with 256 KB Flash

 

Additional features

  • master, slave and multiple simultaneous roles
  • Operating supply voltage: from 1.7 to 3.6 V
  • Integrated linear regulator and DC-DC step-down converter
  • 24 KB RAM with retention (two 12 KB banks)
  • 1 x UART interface
  • 1 x SPI interface
  • 2 x I²C interface
  • 14, 15 or 26 GPIOs
  • 2 x multifunction timer
  • 10-bit ADC
  • Watchdog & RTC
  • DMA controller
  • PDM stream processor
  • 16 or 32 MHz crystal oscillator
  • 32 kHz crystal oscillator
  • 32 kHz ring oscillator
  • Battery voltage monitor and temperature sensor
  • Up to +8 dBm available output power (at antenna connector)
  • 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)
  • Suitable for building applications compliant with the following radio frequency regulations: ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15, ARIB STD-T66
  • Pre-programmed bootloader via UART
  • QFN32, QFN48 and WCSP34 package options

 

Applications

  • 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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