ATSAMD21E17D-AF

Overview

The ATSAMD21E17D-AF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, part of the SAM D21E Functional Safety series. It features 128KB of Flash memory and 16KB of SRAM. The device operates at a maximum frequency of 48MHz with a supply voltage range of 1.62V to 3.63V. It includes 26 I/O pins, an internal oscillator, and supports interfaces such as I2C, LINbus, SPI, USART, and USB. The component is qualified under AEC-Q100 standards and functions within a temperature range of -40°C to +125°C.

Feature Summary

• AEC-Q100 qualified for automotive functional safety applications
• Integrated USB interface support alongside standard communication protocols
• Extended industrial temperature range operation up to 125°C

Applications

• Automotive electronic control units requiring functional safety compliance
• Industrial systems operating in high-temperature environments
• Embedded controllers utilizing USB connectivity for data exchange

Procurement Notes

Verify the specific suffix 'AF' corresponds to the tray packaging format and extended temperature rating during procurement. Confirm that the AEC-Q100 qualification status aligns with project requirements. Ensure compatibility with the 32-TQFP package dimensions for PCB layout. Cross-reference the latest datasheet revision for any errata or specification updates before finalizing orders.

Selection Notes

Select this model when automotive-grade reliability and functional safety certification are mandatory. The 128KB Flash capacity suits applications needing moderate code storage without external memory. The 48MHz speed provides sufficient processing power for real-time control tasks. Consider the 32-TQFP package if space constraints allow for larger footprints compared to BGA options.

Part Context

This component belongs to the Microchip SAM D21E family, specifically designed for Functional Safety (FuSa) applications. It shares the Cortex-M0+ architecture with other SAM D21 variants but distinguishes itself through automotive qualification and specific memory configurations. The E-series denotes its positioning within the broader SAM D21 ecosystem for robust embedded control.

Replacement Considerations

ATSAMD21E17D-AUT offers identical electrical specifications but utilizes tape-and-reel packaging instead of trays.