MCHPATSAMR21G18A
Overview
The Microchip ATSAMR21G18A is a system-in-package (SiP) that combines an ARM Cortex-M0+ microcontroller with an integrated 2.4GHz IEEE 802.15.4-compliant radio. It offers 256KB of Flash memory and 32KB of SRAM, making it suitable for applications requiring both processing power and wireless connectivity within a compact footprint.
Why Choose This Part
This device offers a significant advantage by integrating both the MCU and the 802.15.4 radio into a single package, simplifying design and reducing board space. The ARM Cortex-M0+ core provides a balance of performance and power efficiency, while the comprehensive set of peripherals like USB, DMA, and capacitive touch support a wide range of embedded applications. Its wide operating voltage range from 1.8V to 3.6V adds flexibility in power supply design.
Applications
Key Specifications
Getting Started
To get started with the ATSAMR21G18A, developers typically use Microchip's MPLAB X IDE and the MPLAB Harmony framework. The ATSAMR21 Xplained Pro Evaluation Kit (AT SAMR21-XPRO) provides a complete hardware platform for development and prototyping. Standard ARM-based debugging tools such as J-Link or Microchip's own Curiosity/ICE debuggers can be used via SWD or JTAG interfaces.
ATSAMR21G Family
| Part Number | Difference | Stock |
|---|---|---|
| ATSAMR21G18A-AU (Microchip Technology (Atmel)) | TQFP | — |
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