MCHPATSAMD21E18A-MUT
Overview
The ATSAMD21E18A-MUT is a low-power, high-performance ARM Cortex-M0+ based microcontroller featuring 256KB of Flash and 32KB of SRAM in a compact 32-pin VQFN package. It is designed for functional safety (FuSa) applications and operates at frequencies up to 48MHz with a diverse set of serial communication peripherals and an integrated USB 2.0 interface. This MCU is notable for its SleepWalking technology, which allows peripherals to wake up the system selectively to minimize power consumption.
Why Choose This Part
It offers an excellent balance of memory density with 256KB Flash in a small 5x5mm footprint. The inclusion of the Event System and DMA allows for high-speed data movement and peripheral synchronization without CPU intervention, significantly improving real-time responsiveness and power efficiency.
Applications
Key Specifications
Getting Started
Developers can begin evaluation using the SAM D21 Curiosity Nano or Xplained Pro evaluation kits. The part is fully supported by the Microchip Atmel Studio and MPLAB X IDEs, utilizing the Harmony v3 framework or Advanced Software Framework (ASF) for driver configuration and middleware. Programming is typically performed via the Serial Wire Debug (SWD) interface.
Dev Boards
Development boards and breakout modules featuring the ATSAMD21E18A-MUT or compatible chips — ready to use for prototyping.
ATSAMD21E Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | RAM | Package | Flash | Stock |
|---|---|---|---|---|
| ATSAMD21E18A-MUT (this part) | 32K | VFQFN-32 | 256KB | 25,047 |
| ATSAMD21E18A-AU (Microchip) | 32K | TQFP-32 | 256KB | 1,742 |
| ATSAMD21E17A-AUT | 16K | TQFP-32 | 128KB | 3,036 |
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