ATSAMD20E17A-MU

Overview

The ATSAMD20E17A-MU is a 32-bit microcontroller unit (MCU) based on the ARM Cortex-M0+ core, belonging to the SAM D20 family. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device operates at a maximum clock frequency of 48MHz and supports an operating voltage range of 1.62V to 1.95V. It is housed in a 64-pin QFN package with 52 available I/O lines.

Feature Summary

• Integrates high-performance ARM Cortex-M0+ processor with low-power operation capabilities
• Includes extensive peripheral set with multiple SERCOM modules for flexible communication
• Features built-in analog components including ADCs and comparators for sensor interfacing

Applications

• Consumer electronics requiring compact form factors
• Industrial control systems with limited power budgets
• Wearable devices utilizing low-voltage operation

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-64 package variant when sourcing. Confirm that the voltage range requirements align with the 1.62V to 1.95V specification. Ensure compatibility with development tools supporting the SAM D20 family architecture before procurement.

Selection Notes

Select this component for designs requiring a balance of processing power and pin count within a small footprint. Compare against other SAM D20 variants if different memory sizes or package types are needed. Consider the 48MHz speed limit for timing-critical applications.

Part Context

This MCU is part of Microchip's SAM D20 series, designed for cost-sensitive embedded applications. It shares architectural similarities with the SAM D21 but offers reduced peripheral counts and memory sizes. The series targets markets needing efficient code execution with minimal power consumption.

Replacement Considerations

ATSAMD20E17A-AU provides equivalent functionality in a TQFP-32 package. ATSAMD20J18A-MU offers increased memory and I/O in a QFN-64 package. Verify pinout compatibility and software library support when substituting.