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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.Key Features
- Bluetooth low energy single mode system-on-chip compliant with Bluetooth 5.0 specifications:
- master, slave and multiple simultaneous roles
- LE data packet length extension
- 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
- 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 and RTC
- DMA controller
- PDM stream processor
- 16 or 32 MHz crystal oscillator
- 32 kHz crystal oscillator
- 32 kHz ring oscillator
- Battery voltage and temperature sensors
- 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)
- ST companion integrated balun/filter chips are available
- Average advertisement current consumption 15.34 µA (advertisement interval 1000 ms) – 1 year, 8 months, 19 days with 230 mAh battery (CR2032)
- Average connection current consumption 7.059 µA (connection interval 1000 ms) – 3 years, 10 months, 12 days with 230 mAh battery (CR2032)
- 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
- Bluetooth low energy single mode system-on-chip compliant with Bluetooth 5.0 specifications:
Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| BLUENRG-232 | VFQFPN 5X5X1.0 32L WET FLK | Tape And Reel | -40 | 105 | Active | 1.95 | 1000 | 5A992C | - | Check Availability | Get sample | |
| BLUENRG-248 | VFQFPN 6X6X0.85 48L P0.4 WF | Tape And Reel | -40 | 105 | Active | 2.0375 | 1000 | 5A992C | PHILIPPINES | Check Availability | Buy now | |
| BLUENRG-234 | WLCSP MSL1 | Tape And Reel | -40 | 105 | Active | 1.88 | 1000 | 5A992C | - | Check Availability | Buy now | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Featured Videos
Development Tools
Embedded Software
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Picture Part number Manufacturer Description 
STSW-BLUENRG1-DK ST BlueNRG-1, BlueNRG-2 DK SW package Part NumberBlueNRG-1, BlueNRG-2 DK SW package
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Picture Part number Manufacturer Description Sigfox Connectivity Sigfox Sigfox IoT connectivity feed your innovation strategy and make the digital transformation of your business a reality. Sigfox IoT connectivity brings value in various business activities. With the continued miniaturization of sensors and technologic advancements such as energy harvesting, we will witness a continuous ow of data, merging the physical world to the digital world. Sigfox Geolocation Sigfox Sigfox Geolocation, the simplest and most efficient IoT location service. Sigfox Geolocation is a low-energy location service for all devices equipped with the simplest Sigfox module, without GPS. There is no need to retrofit to upgrade specific hardware, or to update software: Sigfox can now provide a location for all existing and future devices all over the world. Part NumberSigfox IoT connectivity feed your innovation strategy and make the digital transformation of your business a reality. Sigfox IoT connectivity brings value in various business activities. With the continued miniaturization of sensors and technologic advancements such as energy harvesting, we will witness a continuous ow of data, merging the physical world to the digital world.
Sigfox Geolocation, the simplest and most efficient IoT location service. Sigfox Geolocation is a low-energy location service for all devices equipped with the simplest Sigfox module, without GPS. There is no need to retrofit to upgrade specific hardware, or to update software: Sigfox can now provide a location for all existing and future devices all over the world.
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Picture Part number Manufacturer Description STSW-BLEPROFILES ST BlueNRG-1 BLE Profiles SW package 
STSW-BNRG-Mesh ST Mesh over Bluetooth Low Energy 
STSW-BNRG-S2LP ST STSW-BNRG-S2LP evaluation software package based on BlueNRG-1 and S2-LP STSW-BNRG001 ST BlueNRG current consumption estimation tool STSW-BNRG1STLINK ST BlueNRG-1 ST-LINK utility for BlueNRG-1, BlueNRG-2 MCU STSW-BNRGFLASHER ST BlueNRG-1, BlueNRG-2 Flasher utility STSW-BNRGUI ST BLUENRG family GUI Part NumberBlueNRG-1 BLE Profiles SW package
Mesh over Bluetooth Low Energy
STSW-BNRG-S2LP evaluation software package based on BlueNRG-1 and S2-LP
BlueNRG current consumption estimation tool
BlueNRG-1 ST-LINK utility for BlueNRG-1, BlueNRG-2 MCU
BlueNRG-1, BlueNRG-2 Flasher utility
BLUENRG family GUI
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Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-BCN002V1B ST BlueTile - Bluetooth LE enabled sensor node development kit 
STEVAL-IDB008V1 ST Evaluation platform based on the BlueNRG-2 
STEVAL-IDB008V2 ST Evaluation platform based on the BlueNRG-2 
STEVAL-IDB009V1 ST Evaluation platform based on the BlueNRG-248 Part NumberBlueTile - Bluetooth LE enabled sensor node development kit
Evaluation platform based on the BlueNRG-2
Evaluation platform based on the BlueNRG-2
Evaluation platform based on the BlueNRG-248
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Support and Applications
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| BLUENRG-232 | Active | VFQFPN 5X5X1.0 32L WET FLK | Industrial | Ecopack3 | |
| BLUENRG-234 | Active | WLCSP MSL1 | Industrial | N/A | |
| BLUENRG-248 | Active | VFQFPN 6X6X0.85 48L P0.4 WF | Industrial | Ecopack3 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
