BLUENRG-345AC Overview
The BLUENRG-345AC is a high-performance Bluetooth Low Energy (BLE) system-on-chip (SoC) designed for embedded connectivity applications. Featuring a multi-protocol radio and ultra-low power consumption, this device enables seamless wireless communication with robust security and flexible integration options. It supports advanced BLE 5.3 features, making it ideal for next-generation IoT, wearable, and industrial devices. Developed by IC Manufacturer, the BLUENRG-345AC balances efficient power management with high data throughput, enabling reliable connectivity in compact form factors.
BLUENRG-345AC Technical Specifications
| Parameter | Specification |
|---|---|
| Bluetooth Version | Bluetooth 5.3 Low Energy |
| Operating Frequency | 2.4 GHz ISM Band |
| Core Processor | 32-bit Arm? Cortex?-M33 |
| Flash Memory | 512 KB |
| RAM | 128 KB |
| Supply Voltage | 1.7 V to 3.6 V |
| Power Consumption (TX) | 5.6 mA (@ 0 dBm) |
| Power Consumption (RX) | 4.2 mA |
| Package | 36-pin QFN (5×5 mm) |
| Security Features | AES-128 encryption, Secure Boot |
BLUENRG-345AC Key Features
- Advanced BLE 5.3 support: Enables higher data rates and improved connection reliability, critical for complex wireless applications.
- Ultra-low power consumption: Optimized for battery-powered devices, extending operational life without compromising performance.
- Integrated Arm Cortex-M33 core: Provides robust processing capabilities with enhanced security features, simplifying embedded software development.
- Strong security protocols: Includes AES-128 encryption and secure boot, protecting data integrity and device authentication in IoT environments.
Typical Applications
- Wearable technology devices such as fitness trackers and smartwatches, where reliable BLE connectivity and low power are essential for user experience and battery longevity.
- Industrial wireless sensors that require secure and consistent data exchange in harsh environments.
- Smart home automation systems providing seamless integration and control of lighting, HVAC, and security devices.
- Healthcare monitoring equipment requiring encrypted wireless communication for patient data safety and regulatory compliance.
BLUENRG-345AC Advantages vs Typical Alternatives
This device delivers a superior balance of power efficiency, security, and performance compared to typical BLE SoCs. Its Cortex-M33 core integrates advanced security features, enhancing protection beyond standard encryption. The ultra-low power profile extends battery life significantly, while compliance with BLE 5.3 ensures compatibility and improved data throughput. Compact packaging and flexible voltage operation make it easier to integrate into space-constrained and low-power applications.
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BLUENRG-345AC Brand Info
Produced by STMicroelectronics, a leading global semiconductor manufacturer, the BLUENRG-345AC is part of their BlueNRG family of wireless connectivity solutions. STMicroelectronics is renowned for innovation in embedded systems and Bluetooth Low Energy technology, providing scalable and secure products for IoT, industrial, and consumer markets. This product continues the brand??s commitment to delivering reliable, energy-efficient wireless modules optimized for modern connectivity demands.
FAQ
What Bluetooth standards does the BLUENRG-345AC support?
The device fully supports Bluetooth 5.3 Low Energy standard, enabling features like higher data rates, improved coexistence, and enhanced privacy. This ensures compatibility with a broad range of Bluetooth-enabled products and future-proofing for evolving wireless protocols.
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How does the BLUENRG-345AC manage power consumption for battery-operated devices?
The SoC employs ultra-low power design techniques, including efficient radio operation and low-power sleep modes, to minimize energy use during both active transmission and idle states. This results in extended battery life critical for wearables and IoT sensors.
What security mechanisms are integrated into the BLUENRG-345AC?
Security features include AES-128 encryption for secure data transmission and a secure boot process to






