Overview
The BLUENRG-232N from STMicroelectronics is an ultra low power (ULP) network coprocessor solution designed for Bluetooth® low energy applications. It integrates STMicroelectronics’s state-of-the-art RF radio IPs, combining high performance with extremely long battery lifetime. The device is fully compliant with the Bluetooth core specification version 5.2 and supports enhanced features such as state-of-the-art security, privacy, and extended packet length for faster data transfer up to 700 kbps at the application level. It is Bluetooth® 5.2 certified, ensuring interoperability with the latest generation of smartphones and other host devices. The Bluetooth low energy stack runs on the embedded ARM Cortex-M0 core, and the device can be easily upgraded via SPI/UART using dedicated STMicroelectronics software tools.
Key Specifications
| Specification | Details |
|---|---|
| Bluetooth Version | Bluetooth 5.2 certified |
| RF Frequency Range | 2.4 to 2.4835 GHz |
| Output Power | Up to +8 dBm programmable output power level |
| Current Consumption | TX: 6.8 mA (@ -2 dBm, 3.0 V), RX: 6.2 mA (@ sensitivity level, 3.0 V), Sleep: 900 nA |
| Package Type | VFQFPN 5x5x1.0 mm 32L WET FLK |
| Operating Temperature | -40°C to 105°C |
| Processor Core | ARM Cortex-M0 core |
| Memory | On-chip non-volatile Flash memory |
| Interfaces | SPI, UART, SWD |
Key Features
- Ultra-low power consumption for extended battery life
- State-of-the-art security and privacy features, including LE secure connections and LE Privacy 1.2
- Support for data length extension, enabling faster data transfer up to 700 kbps at the application level
- Over-the-air firmware update capability, which is 2.5 times faster
- Integrated DC-DC step-down converter and LDO regulators
- Excellent RF link budget (up to 96 dB)
- Multi-master to multi-slave communication capability, handling up to 8 simultaneous connections
- Dedicated firmware for interface with an external application processor
- Comprehensive development tools, including a full-featured SDK and real-time debug capabilities
Applications
- Watches, fitness, wellness, and sports devices
- Consumer medical devices
- Security and proximity applications
- Remote control devices
- Home and industrial automation
- Assisted living devices
- Mobile phone peripherals
- Lighting systems
- PC peripherals
Q & A
- What is the Bluetooth version supported by the BLUENRG-232N?
The BLUENRG-232N is Bluetooth 5.2 certified.
- What is the typical current consumption of the BLUENRG-232N in sleep mode?
The sleep current consumption is down to 900 nA.
- What is the maximum output power of the BLUENRG-232N?
The device has a programmable output power level up to +8 dBm.
- What processor core is embedded in the BLUENRG-232N?
The device embeds an ARM Cortex-M0 core.
- How can the firmware of the BLUENRG-232N be upgraded?
The firmware can be upgraded via SPI/UART using dedicated STMicroelectronics software tools.
- What security features does the BLUENRG-232N support?
The device supports state-of-the-art security features, including LE secure connections and LE Privacy 1.2.
- What is the maximum data transfer rate supported by the BLUENRG-232N?
The device supports data transfer rates up to 700 kbps at the application level.
- Can the BLUENRG-232N handle multiple connections simultaneously?
Yes, it can handle up to 8 simultaneous connections.
- What development tools are available for the BLUENRG-232N?
Comprehensive development tools include a full-featured SDK, high-level abstraction layer APIs, and real-time debug capabilities.
- What are some typical applications of the BLUENRG-232N?
Typical applications include watches, fitness devices, consumer medical devices, security and proximity applications, and more.
