ATSAMD21G15B-AUT

Overview

The ATSAMD21G15B-AUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21 series with Functional Safety (FuSa) certification. It features 32KB of Flash memory and 4KB of SRAM, operating at a maximum frequency of 48MHz. The device supports an operating voltage range of 1.62V to 3.6V and includes 14-channel 12-bit ADCs and one 10-bit DAC. Connectivity options include I2C, SPI, USART, USB, and LINbus interfaces. It is housed in a 48-TQFP package and rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• AEC-Q100 qualified for automotive functional safety applications
• Integrated advanced analog peripherals including high-resolution ADCs and DACs
• Supports multiple communication protocols including USB and LINbus
• Low-power architecture optimized for energy-efficient embedded control

Applications

• Automotive body electronics and lighting control
• Industrial sensor nodes and data acquisition systems
• Consumer devices requiring robust connectivity and analog processing
• General-purpose embedded control in harsh environments

Procurement Notes

Verify the specific suffix 'AUT' confirms AEC-Q100 qualification and automotive-grade reliability standards as defined by Microchip Technology. Ensure the 48-TQFP package dimensions match your PCB footprint requirements. Confirm that the internal oscillator accuracy meets your system timing specifications before finalizing procurement.

Selection Notes

Select this component when automotive functional safety compliance is required alongside moderate memory capacity. Compare against other SAM D21 variants if higher pin counts or larger memory sizes are needed. Consider the 48MHz clock speed and available analog peripherals for signal processing tasks. Verify power supply constraints align with the 1.62V to 3.6V operating range.

Part Context

This part belongs to the SAM D21 family of 32-bit microcontrollers designed for low-power applications. The 'E' or 'G' designation typically indicates specific pinout or feature variations within the series, while the 'AUT' suffix denotes automotive qualification. The family shares a common instruction set and peripheral structure, facilitating migration between different memory and package configurations within the same ecosystem.

Replacement Considerations

Direct substitutes within the SAM D21 family include parts with identical memory and package but different temperature grades or qualifications, such as non-automotive versions. Cross-referencing datasheets is essential to verify pin compatibility and peripheral availability. No alternative part numbers are explicitly confirmed as direct replacements in the provided documentation.