STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless SoC

STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless System-On-Chip is an ultra-low power, programmable solution with 2.4GHz state-of-art RF radio IPs for ultra-low latency applications. The BlueNRG-LP SoC is compliant with Bluetooth Low Energy SIG core specification version 5.2 addressing point-to-point connectivity and Bluetooth Mesh networking IPs.

The STM BlueNRG-LP embeds an Arm® Cortex® M0+ microcontroller that can operate up to 64MHz and the BlueNRG core coprocessor (DMA based), for Bluetooth Low Energy timing critical operations. The BlueNRG-LP offers high-speed and flexible memory types of 256kB Flash memory, 64kB RAM, 1kB one-time-programmable (OTP) memory area, and 7kB ROM memory.

The BlueNRG-LP features standard and advanced communication interfaces, including 1xSPI, 2xSPI/I2S, 1xLPUART, 1xUSART supporting ISO 7816 (smartcard mode), IrDA and Modbus mode, 2xI2C supporting SMBus/PMBus, 1xch PDM. The BlueNRG-LP operates in the -40°C to +105°C (+125°C junction) temperature range from a 1.7V to 3.6V power supply.

The BlueNRG-LP Bluetooth Low Energy Wireless SoC is available in different package versions supporting up to 32 I/Os for the QFN48 package, 20 I/Os for the QFN32 package, and 30 I/Os for the WCSP49 package.

Features

  • Bluetooth Low Energy system-on-chip supporting Bluetooth 5.2 specifications
    • 2Mbps data rate
    • Long range (Coded PHY)
    • Advertising extensions
    • Channel selection algorithm #2
    • GATT caching
  • Radio
    • RX sensitivity level: -97dBm @ 1Mbps, -104dBm @ 125kbps (long range)
    • Programmable output power up to +8dBm (at antenna connector)
    • Data rate supported: 2Mbps, 1Mbps, 500kbps and 125kbps
    • Integrated balun
    • Support for external PA
    • BlueNRG core coprocessor (DMA based) for Bluetooth Low Energy timing-critical operation
    • 2.4GHz proprietary radio driver
    • Suitable for systems requiring compliance with the following radio frequency regulations: ETSI EN 300 328, EN 300 440, FCC CFR47 part 15, ARIB STD-T66
  • Ultra-low power radio performance
    • 10nA in SHUTDOWN mode (1.8V)
    • 0.6µA in DEEPSTOP mode (with external LSE and BLE wake-up sources, 1.8V)
    • 0.9µA in DEEPSTOP mode (with internal LSI and BLE wake-up sources, 1.8V)
    • 4.3mA peak current in TX (@ 0dBm, 3.3V)
    • 3.4mA peak current in RX (@ sensitivity level, 3.3V)
  • High performance and ultra-low power Cortex-M0+ 32-bit, running up to 64MHz
  • Dynamic current consumption: 18µA/MHz
  • Operating supply voltage: from 1.7V to 3.6V
  • -40ºC to +105ºC temperature range
  • Supply and reset management
    • High efficiency embedded SMPS step-down converter with intelligent bypass mode
    • Ultra-low power power-on-reset (POR) and power-down-reset (PDR)
    • Programmable voltage detector (PVD)
  • Clock sources
    • Fail-safe 32MHz crystal oscillator with integrated trimming capacitors
    • 32kHz crystal oscillator
    • Internal low-power 32kHz RO
  • On-chip non-volatile Flash memory of 256kB
  • On-chip RAM of 64kB or 32kB
  • One-time-programmable (OTP) memory area of 1kB
  • Embedded UART bootloader
  • Ultra-low power modes with or without timer and RAM retention
  • Quadrature decoder
  • Enhanced security mechanisms such as:
    • Flash read/write protection
    • SWD disabling
    • Secure bootloader
  • Security features
    • True random number generator (RNG)
    • Hardware encryption AES maximum 128-bit security co-processor
    • HW public key accelerator (PKA)
    • CRC calculation unit
    • 48-bit unique ID
  • System peripherals
    • 1x DMA controller with 8 channels supporting ADC, SPI, I2C, USART, and LPUART
    • 1x SPI
    • 2x SPI/I2S
    • 2x I2C (SMBus/PMBus)
    • 1x PDM (digital microphone interface)
    • 1x LPUART
    • 1x USART (ISO 7816 smartcard mode, IrDA, SPI Master, and Modbus)
    • 1x Independent WDG
    • 1x Real-time clock (RTC)
    • 1x Independent SysTick
    • 1x 16-bit, 6 channel advanced timer
  • Up to 32 fast I/Os
    • 28 of them with wake-up capability
    • 31 of them 5V tolerant
  • Analog peripherals
    • 12-bit ADC with 8 input channels, up to 16 bits with a decimation filter
    • Battery monitoring
    • Analog watchdog
    • Analog Mic I/F with PGA
  • Development support
    • Serial wire debug (SWD)
    • 4 breakpoints and 2 watchpoints
  • All packages are ECOPACK2 compliant

Applications

  • Industrial
  • Home and industrial automation
  • Smart lighting
  • Fitness, wellness, and sports
  • Healthcare, consumer medical
  • Watches
  • Security/proximity
  • Remote control
  • Assisted living
  • Mobile phone peripherals
  • PC peripherals

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STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless SoC

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Block Diagram

STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless SoC

RF Block Diagram

Block Diagram - STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless SoC

Power Supply Configuration

Application Circuit Diagram - STMicroelectronics BlueNRG-LP BLUETOOTH® Low Energy Wireless SoC
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