ATSAMD21E17A-AFT

Overview

The ATSAMD21E17A-AFT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21E series, designed for functional safety applications. It features 128 kB of Flash program memory and 16 kB of SRAM data RAM. The device operates within a voltage range of 1.62 V to 3.63 V and supports a maximum clock frequency of 48 MHz. It includes ten 12-bit ADC channels and one 10-bit DAC. The component is housed in a 32-TQFP package with 26 available I/O lines. It meets AEC-Q100 automotive qualification standards and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrated ARM Cortex-M0+ core optimized for low-power embedded control tasks
• Automotive-grade reliability certified under AEC-Q100 standards
• Supports multiple communication interfaces including SPI, I2C, USART, LIN, and I2S
• Includes hardware peripherals such as DMA controllers and PWM generators

Applications

• Automotive body electronics and sensor modules
• Industrial control systems requiring functional safety compliance
• Consumer devices operating in high-temperature environments
• Battery-powered IoT nodes utilizing low-power modes

Procurement Notes

Verify the specific suffix 'AFT' confirms the 32-TQFP package and the +125°C industrial/automotive temperature grade. Ensure compatibility with the 1.62V to 3.63V supply rail requirements. Confirm that the AEC-Q100 qualification aligns with your system's automotive reliability standards. Check for moisture sensitivity level handling during assembly.

Selection Notes

Select this model when a balance of moderate memory capacity and automotive certification is required. It is suitable for designs needing LIN bus support or specific I/O counts provided by the 32-pin form factor. Consider alternative pin counts if more general-purpose I/O lines are necessary for complex peripheral integration.

Part Context

This component belongs to the SAM D21E family, which focuses on functional safety (FuSa) capabilities within Microchip's ARM-based MCU portfolio. It shares architectural similarities with other SAM D21 variants but distinguishes itself through its specific memory configuration and automotive-grade thermal performance envelope.

Replacement Considerations

ATSAMD21E17A-AUT: Identical electrical specifications and memory map; differs only in packaging format (Tape & Reel vs. Tray).

FAQ

Does the ATSAMD21E17A-AFT support USB connectivity?

No, the SAM D21E series does not include a built-in USB controller. Communication is handled via SPI, I2C, USART, LIN, and I2S interfaces.

What is the maximum operating temperature for this component?

The component is qualified for operation up to +125°C, making it suitable for demanding automotive and industrial environments.