ATSAMD20G15A-MU

Overview

The ATSAMD20G15A-MU is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D20 family, manufactured by Microchip Technology. It features 32 kB of Flash program memory and 4 kB of SRAM data memory. The device operates at a maximum clock frequency of 48 MHz and supports an input/output count of 38 pins. It includes 14-channel 12-bit ADCs and eight timer/counters. The unit is housed in a QFN-48 package with surface mount installation. Operating voltage ranges from 1.62 V to 1.95 V, and it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates ARM Cortex-M0+ core for efficient 32-bit processing
• Includes multiple communication interfaces such as I2C, SPI, and UART
• Features integrated analog-to-digital conversion capabilities

Applications

• General-purpose embedded control systems
• Low-power sensor interface nodes
• Simple human-machine interface controllers

Procurement Notes

Verify the specific suffix 'MU' corresponds to the QFN-48 tray packaging configuration. Confirm that the operating voltage requirements align with the 1.62 V to 1.95 V specification rather than wider supply rails. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference the datasheet revision date against current errata sheets for silicon compatibility updates.

Selection Notes

Select this component when a compact QFN-48 footprint is required alongside moderate memory capacity. It serves as a suitable alternative to variants with higher pin counts or larger memory sizes if cost and space are constrained. Verify that the 38 available I/O lines meet the system connectivity needs without requiring external multiplexing.

Part Context

This part belongs to the SAM D20G series, which targets low-cost, low-power applications. It shares architectural similarities with other SAM D20 variants but differs in memory size and package type. The G-series designation typically indicates specific peripheral availability and package constraints compared to J or E series counterparts.

Replacement Considerations

ATSAMD20G15A-MUT offers identical electrical specifications in a tape-and-reel package format.