ATSAMR34J16B-I/7JX Overview
The ATSAMR34J16B-I/7JX is a high-performance sub-GHz system-on-chip (SoC) designed for long-range wireless communication applications. Integrating a 32-bit ARM Cortex-M0+ microcontroller with a flexible low-power transceiver, this device supports multiple communication protocols including LoRa and FSK modulation schemes. It is optimized for industrial and IoT applications requiring extended battery life, robust link budget, and versatile RF capabilities. Its compact package and comprehensive peripheral set make it an ideal choice for engineers developing energy-efficient, scalable wireless solutions. For detailed technical support and sourcing, visit IC Manufacturer.
ATSAMR34J16B-I/7JX Technical Specifications
| Parameter | Specification |
|---|---|
| Core | ARM Cortex-M0+ 32-bit |
| Operating Frequency | Sub-GHz Band (868 MHz / 915 MHz) |
| Flash Memory | 256 KB |
| SRAM | 40 KB |
| Modulation Support | LoRa, (G)FSK, (G)MSK, OOK |
| Receiver Sensitivity | Down to -137 dBm (LoRa mode) |
| Max Output Power | Up to +14 dBm |
| Supply Voltage | 1.8 V to 3.6 V |
| Package | 48-pin QFN (6×6 mm) |
| Temperature Range | -40??C to +85??C |
ATSAMR34J16B-I/7JX Key Features
- Integrated ARM Cortex-M0+ core: Provides efficient processing power with low energy consumption, enabling complex wireless protocol stacks and application code to run on a single chip.
- Multi-modulation support: Supports LoRa, (G)FSK, (G)MSK, and OOK modulation schemes, offering flexibility for diverse long-range and low-power communication requirements.
- High receiver sensitivity: Achieves sensitivity down to -137 dBm in LoRa mode, ensuring robust links even in challenging RF environments and extending communication range.
- Low power operation: Designed to operate at voltages as low as 1.8 V with efficient power management, it significantly extends battery life in remote sensing and IoT applications.
- Compact QFN package: The 48-pin QFN footprint (6×6 mm) facilitates compact PCB layouts, reducing overall module size without sacrificing connectivity options.
- Rich peripheral set: Includes SPI, I2C, UART, and ADC interfaces, enabling easy integration with sensors, memory, and other system components for versatile application designs.
- Wide temperature range: Operational from -40??C to +85??C, it suits demanding industrial environments requiring reliable wireless communication under varying conditions.
ATSAMR34J16B-I/7JX Advantages vs Typical Alternatives
This device integrates a powerful Cortex-M0+ core with a highly sensitive sub-GHz radio, offering superior link budgets compared to typical RF modules. Its multi-modulation support and low power consumption enable flexible application deployment and extended battery life. The compact package and extensive peripheral interfaces enhance system integration, providing a reliable and scalable wireless solution that outperforms many standalone transceivers or microcontroller-radio combinations.
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Typical Applications
- Industrial IoT sensor networks: Ideal for long-range, low-power data transmission in smart factory automation and asset tracking, where robust wireless links and low energy use are critical.
- Smart metering: Supports reliable communication for gas, water, and electricity meters requiring secure and efficient data transfer over extended distances.
- Home and building automation: Enables wireless control and monitoring of lighting, HVAC systems, and security devices with minimal power consumption.
- Environmental monitoring: Suitable for remote weather stations and pollution sensors that demand long battery life and strong signal penetration in outdoor settings.
ATSAMR34J16B-I/7JX Brand Info
The ATSAMR34J16B-I/7JX is part of a renowned family of sub-GHz wireless SoCs designed for high-performance IoT and industrial applications. It combines proven ARM Cortex-M0+ processing architecture with advanced radio capabilities tailored for long-range, low-power communication standards such as LoRa. This product line emphasizes reliability, integration, and energy efficiency, meeting the stringent requirements of modern industrial wireless networks and smart device ecosystems.
FAQ
What modulation schemes does this device support?
This SoC supports multiple modulation methods including LoRa, (G)FSK, (G)MSK, and OOK. This versatility allows it to be used in a range of applications requiring different wireless communication protocols for long-range and low-power data transmission.
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What is the typical operating voltage range for this product?
The device operates within a supply voltage range from 1.8 V up to 3.6 V, enabling it to function efficiently in low-power systems and prolong battery life in portable or remote applications.
How does the integrated ARM Cortex-M0+ core benefit system design?
The built-in Cortex-M0+ processor offers a balance of processing performance and power efficiency. It allows developers to run application code alongside the radio protocol stack on a single chip, reducing component count and simplifying overall system architecture.
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What is the importance of receiver sensitivity in this product?
With receiver sensitivity reaching down to -137 dBm in LoRa mode, this device can detect very weak signals. This enhances communication reliability and range, especially in environments with interference or physical obstructions.
In which industries is this wireless SoC most commonly used?
This product is widely used in industrial IoT, smart metering, home and building automation, and environmental monitoring. Its combination of long-range communication, low power consumption, and robust performance suits these demanding fields.





