Overview
The BlueNRG-LP, specifically the BLUENRG-355AC model, is an ultra-low power programmable Bluetooth Low Energy (BLE) 5.2 wireless System-on-Chip (SoC) solution from STMicroelectronics. This device integrates state-of-the-art 2.4 GHz RF radio IPs, ensuring unparalleled performance and extremely long battery life. It is compliant with the Bluetooth Low Energy SIG core specification version 5.2, supporting point-to-point connectivity and Bluetooth Mesh networking. The BlueNRG-LP is also suitable for 2.4 GHz proprietary radio wireless communication, addressing ultra-low latency applications.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller | Cortex-M0+ up to 64 MHz |
| Bluetooth Version | Bluetooth Low Energy 5.2 |
| Data Rates | 2 Mbps, 1 Mbps, 500 kbps, 125 kbps |
| Radio Frequency | 2.4 GHz |
| Output Power | Up to +8 dBm (at antenna connector) |
| Receiver Sensitivity | -97 dBm @ 1 Mbps, -104 dBm @ 125 kbps (long range) |
| Memory | 256 Kbytes Flash, 64 Kbytes RAM, 1 Kbyte OTP, 7 Kbytes ROM |
| Package | QFN-32-EP (5x5 mm) |
| Operating Voltage | 1.7 V to 3.6 V |
| Operating Temperature | -40 °C to 105 °C |
| Power Consumption | 10 nA in SHUTDOWN mode, 0.6 µA in DEEPSTOP mode (with external LSE and BLE wake-up sources) |
Key Features
- Support for Bluetooth Low Energy 5.2 specifications including 2 Mbps data rate, long range (Coded PHY), advertising extensions, and channel selection algorithm #2.
- Integrated balun and support for external PA.
- Enhanced security features: true random number generator (RNG), AES maximum 128-bit security co-processor, public key accelerator (PKA), CRC calculation unit, and 64-bit unique ID.
- High-speed and flexible memory types: Flash, RAM, OTP, and ROM.
- Direct data transfer between memory and peripherals via eight DMA channels.
- 12-bit ADC with up to eight external and three internal sources, including battery monitoring and a temperature sensor.
- Low-power RTC and one advanced 16-bit timer.
- Standard and advanced communication interfaces: SPI, I2S, LPUART, USART, I2C, and PDM.
- Ultra-low power modes with or without timer and RAM retention.
- High efficiency SMPS step-down converter and integrated PDR circuitry.
Applications
The BlueNRG-LP is versatile and can be used in various applications, including:
- Industrial automation and control systems.
- Personal electronics such as wearables, fitness trackers, and smart home devices.
- Healthcare devices requiring low power and reliable connectivity.
- IoT devices that need efficient and secure wireless communication.
- Automotive systems for vehicle-to-everything (V2X) communication and other in-car applications.
Q & A
- What is the primary function of the BlueNRG-LP?
The BlueNRG-LP is a programmable Bluetooth Low Energy (BLE) 5.2 wireless System-on-Chip (SoC) solution.
- What are the supported data rates of the BlueNRG-LP?
The BlueNRG-LP supports data rates of 2 Mbps, 1 Mbps, 500 kbps, and 125 kbps.
- What is the operating voltage range of the BlueNRG-LP?
The operating voltage range is from 1.7 V to 3.6 V.
- What are the key security features of the BlueNRG-LP?
The device includes a true random number generator (RNG), AES maximum 128-bit security co-processor, public key accelerator (PKA), CRC calculation unit, and a 64-bit unique ID.
- What types of memory does the BlueNRG-LP have?
The BlueNRG-LP has 256 Kbytes of Flash memory, 64 Kbytes of RAM, 1 Kbyte of OTP memory, and 7 Kbytes of ROM.
- What is the temperature range for the BlueNRG-LP?
The operating temperature range is from -40 °C to 105 °C.
- What communication interfaces are available on the BlueNRG-LP?
The device features SPI, I2S, LPUART, USART, I2C, and PDM interfaces.
- How does the BlueNRG-LP manage power consumption?
The device has ultra-low power modes, including SHUTDOWN and DEEPSTOP modes, and a high efficiency SMPS step-down converter.
- What are some typical applications for the BlueNRG-LP?
Typical applications include industrial automation, personal electronics, healthcare devices, IoT devices, and automotive systems.
- Is the BlueNRG-LP compliant with any specific radio frequency regulations?
Yes, it is compliant with regulations such as ETSI EN 300 328, EN 300 440, FCC CFR47 part 15, and ARIB STD-T66.
- What development tools are available for the BlueNRG-LP?
Development tools include evaluation platforms, serial wire debug (SWD), and various CAD formats for design support.
