ATSAMD21E15B-MF

Overview

The ATSAMD21E15B-MF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21E series designed for functional safety applications. It features 32KB of flash memory and 4KB of SRAM, operating at a maximum frequency of 48MHz. The device supports a supply voltage range of 1.62V to 3.6V and includes an internal oscillator. It provides 26 general-purpose I/O pins and integrates multiple communication interfaces including I2C, SPI, UART/USART, LINbus, and USB. Analog capabilities consist of ten 12-bit ADC channels and one 10-bit DAC.

Feature Summary

• Functional Safety (FuSa) certification aligned with AEC-Q100 standards for automotive reliability
• Integrated advanced analog peripherals including high-resolution ADCs and a DAC
• Comprehensive connectivity suite supporting standard serial protocols and USB functionality
• Low-power architecture optimized for energy-efficient embedded control tasks

Applications

• Automotive electronic systems requiring functional safety compliance
• Industrial control units utilizing LINbus or CAN-like communication
• Consumer devices requiring low-power operation and analog signal processing
• IoT nodes needing secure and reliable wireless or wired connectivity

Procurement Notes

Verify the package designation matches the required footprint, as suffixes indicate specific housing types. Confirm the temperature grade aligns with operational environmental constraints. Ensure the functional safety qualification status meets project regulatory requirements. Cross-reference the datasheet revision to confirm peripheral availability and errata updates before finalizing procurement specifications.

Selection Notes

Select this component when functional safety certification is mandatory for the application. Choose this model over non-AUT variants if automotive-grade reliability is required. Consider the pin count and peripheral set against system interface needs. Evaluate power consumption profiles against battery life requirements for portable implementations.

Part Context

This part belongs to the SAM D21E family, which extends the standard SAM D21 line with enhanced functional safety features. It shares the core architecture with other SAM D21 variants but differs in qualification and specific memory configurations. The E-series designation indicates automotive and industrial focus compared to commercial counterparts.

Replacement Considerations

ATSAMD21E15B-AUT offers identical electrical characteristics in a TQFP package. ATSAMD21E15B-MUT provides the same functionality in a VQFN package. Verify pin compatibility and thermal performance when substituting between package types.