ATSAMD21E17A-AU

Overview

The ATSAMD21E17A-AU is a 32-bit RISC microcontroller based on the ARM Cortex-M0+ core, manufactured by Microchip Technology. It operates at a maximum clock frequency of 48 MHz and features 128 KB of Flash memory and 16 KB of SRAM. The device includes an integrated 12-channel 12-bit ADC and a single 10-bit DAC. Connectivity options include I2C, SPI, USART, USB, and LINbus interfaces. It supports DMA with 12 channels and offers 26 general-purpose I/O lines. The component is housed in a 32-pin TQFP package and functions within a supply voltage range of 1.62 V to 3.6 V.

Feature Summary

• Integrated Functional Safety (FuSa) capabilities for safety-critical applications
• High-performance 48 MHz ARM Cortex-M0+ processor core
• Comprehensive analog peripherals including multi-channel ADC and DAC
• Flexible connectivity suite supporting USB, LINbus, and standard serial protocols

Applications

• Industrial control systems requiring functional safety compliance
• Medical devices utilizing embedded processing and analog signal conversion
• Consumer electronics with USB connectivity requirements
• Automotive instrumentation leveraging LINbus communication

Procurement Notes

Verify the specific suffix 'AU' corresponds to the 32-pin TQFP package variant when sourcing. Confirm that the Functional Safety (FuSa) designation aligns with your project's safety integrity level requirements. Ensure compatibility with the SAM D21 family development tools for programming and debugging. Check for any recent Product Change Notifications regarding assembly sites or labeling changes.

Selection Notes

Select this model if the design requires a balance of moderate memory capacity and functional safety features within a compact 32-pin footprint. It is suitable for applications needing USB and LINbus support without the pin count of larger packages. Compare against the ATSAMD21G series if more I/O pins are required, or the E15 variant if lower memory suffices. Consider the QFN package option if board space constraints favor surface-mount profiles over TQFP.

Part Context

This component belongs to the SAM D21G family of microcontrollers, which are designed for low-power, high-performance embedded applications. The family shares a common architecture but varies in memory size, I/O count, and package type. The ATSAMD21E17A-AU specifically targets applications needing functional safety certification alongside standard peripheral sets.

Replacement Considerations

ATSAMD21G17A-AU: Offers identical core and memory but provides additional I/O pins via a 48-pin package.