ATSAMD21G16L-MUT

Overview

The ATSAMD21G16L-MUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, part of the SAM D21G series designed for functional safety applications. It features 64KB of flash memory and 8KB of SRAM, operating at a maximum clock frequency of 48MHz. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. It offers 38 general-purpose I/O pins and integrates multiple communication interfaces including I2C, SPI, USART, USB, LINbus, and I2S. Analog capabilities consist of 18-channel 12-bit ADCs and one 10-bit DAC.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Integrated advanced analog peripherals with high-resolution converters
• Supports comprehensive serial communication protocols including USB and LINbus
• Designed with functional safety (FuSa) architecture

Applications

• Automotive electronic control units requiring AEC-Q100 compliance
• Industrial automation systems utilizing LINbus or CAN-like protocols
• Consumer devices requiring low-power 32-bit processing
• Medical equipment needing functional safety certification

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 85°C industrial temperature grade and QFN-48 package configuration. Confirm that the AEC-Q100 qualification status aligns with your project's automotive reliability requirements. Ensure compatibility with the 1.62V to 3.63V supply voltage range for your power design. Check for any recent product change notices regarding assembly or fabrication sites.

Selection Notes

Select this component when automotive-grade reliability is mandatory alongside functional safety features. It is suitable for designs requiring integrated USB connectivity and extensive analog input channels within a compact QFN-48 footprint. Consider alternative packages like MNT if higher temperature ratings are needed, or different pin counts if fewer I/Os suffice.

Part Context

This MCU belongs to the SAM D21G family, which emphasizes functional safety for automotive and industrial markets. It shares the Cortex-M0+ core with other SAM D21 variants but distinguishes itself through AEC-Q100 certification and specific peripheral configurations tailored for safety-critical applications.

Replacement Considerations

ATSAMD21G16L-MNT serves as a higher temperature variant (-40°C to 105°C) in the same package. ATSAMD21G16B-MU offers similar specs but may differ in qualification status. Verify pinout and software compatibility before substituting.