ATSAMR21G16A-MUT Overview
The ATSAMR21G16A-MUT is a high-performance microcontroller integrating a low-power ARM Cortex-M0+ core with a 2.4 GHz IEEE 802.15.4-compliant transceiver. Designed to deliver efficient wireless connectivity combined with robust processing capabilities, it targets applications requiring reliable short-range communication and low power consumption. This device features a rich set of peripherals and memory options tailored for embedded wireless systems. Its compact 48-pin package ensures ease of integration in space-constrained designs. For engineers and sourcing specialists looking for a scalable wireless solution, the ATSAMR21G16A-MUT from IC Manufacturer offers a balanced blend of connectivity, performance, and energy efficiency.
ATSAMR21G16A-MUT Technical Specifications
| Parameter | Specification |
|---|---|
| Core | ARM Cortex-M0+ |
| Operating Frequency | Up to 48 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Wireless Standard | IEEE 802.15.4 (2.4 GHz) |
| Package | 48-pin MUQFN |
| Operating Voltage | 1.8 V to 3.6 V |
| Temperature Range | -40??C to +85??C |
| GPIO Pins | Up to 32 configurable I/O pins |
| Communication Interfaces | SPI, I2C, UART, USB 2.0 Full Speed |
ATSAMR21G16A-MUT Key Features
- Integrated ARM Cortex-M0+ Core: Provides efficient processing for embedded applications while minimizing power consumption, enabling longer battery life in wireless devices.
- 2.4 GHz IEEE 802.15.4 Transceiver: Supports robust, low-power wireless communication ideal for mesh networking and IoT connectivity.
- Ample On-Chip Memory: 256 KB Flash and 32 KB SRAM deliver sufficient storage for complex firmware and real-time data processing without external memory.
- Flexible Communication Interfaces: Includes SPI, I2C, UART, and USB 2.0 for seamless integration with sensors, peripherals, and host processors.
- Low Operating Voltage: Functions across 1.8 V to 3.6 V, providing design flexibility and compatibility with various power sources.
- Compact 48-Pin MUQFN Package: Facilitates space-efficient PCB layouts, critical for compact wireless modules and embedded systems.
- Wide Temperature Range: Ensures reliable operation in industrial and environmental monitoring applications exposed to harsh conditions.
ATSAMR21G16A-MUT Advantages vs Typical Alternatives
This device stands out due to its integrated 2.4 GHz transceiver combined with a Cortex-M0+ core, delivering a compact and highly integrated wireless solution. Compared to typical alternatives, it offers lower power consumption and enhanced processing efficiency, reducing overall system complexity and bill of materials. Its rich peripheral set and memory capacity provide engineers with greater flexibility in system design and firmware development, while the robust package and temperature range ensure reliability in demanding industrial environments.
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Typical Applications
- Wireless Sensor Networks: Suitable for mesh networking with low-latency communication and extended battery life in environmental and industrial monitoring systems.
- Smart Home Automation: Enables reliable control and monitoring of lighting, HVAC, and security systems through integrated wireless connectivity.
- IoT Edge Devices: Provides processing and communication capabilities for connected devices requiring low power and compact form factors.
- Industrial Wireless Controls: Ideal for factory automation and asset tracking applications where robust wireless communication and environmental tolerance are critical.
ATSAMR21G16A-MUT Brand Info
The ATSAMR21G16A-MUT is part of a renowned family of microcontrollers from a leading semiconductor provider recognized for combining advanced wireless technology with efficient processing cores. This product embodies the brand’s commitment to innovation in low-power wireless solutions, supporting the emerging demands of IoT, industrial automation, and smart infrastructure markets. Backed by comprehensive development tools and software stacks, it offers developers a fast track from concept to production-ready design.
FAQ
What wireless protocols does this microcontroller support?
The device supports IEEE 802.15.4 standard at 2.4 GHz frequency, making it suitable for wireless mesh and low-rate personal area networks. This standard underpins protocols such as Zigbee and Thread, widely used in IoT applications for reliable short-range communication.
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What is the maximum operating frequency of the integrated core?
The ARM Cortex-M0+ core operates at a maximum frequency of 48 MHz. This frequency strikes a balance between performance and power efficiency, enabling the microcontroller to handle embedded applications with moderate computational requirements effectively.
How much memory is available on-chip for program and data storage?
This microcontroller includes 256 KB of Flash memory for program storage and 32 KB of SRAM for data and stack usage. This memory configuration supports complex firmware and real-time processing without the need for external memory components.
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What are the power supply requirements for this device?
The device operates over a voltage range from 1.8 V to 3.6 V, giving flexibility to design systems powered from various battery types or regulated power sources. This wide range helps optimize power consumption and system reliability.
Does the package support easy integration into compact designs?
Yes, the microcontroller comes in a 48-pin MUQFN package, which is a low-profile, fine-pitch package ideal for space-constrained embedded designs. This packaging facilitates thermal performance and straightforward PCB layout for wireless modules and compact devices.





