ATSAMD21E17L-AF

Overview

The ATSAMD21E17L-AF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 128KB of in-system programmable Flash memory and 16KB of SRAM. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. It offers 26 general-purpose I/O pins and integrates multiple communication interfaces including I2C, SPI, USART, and LINbus. The component is housed in a 32-TQFP package with dimensions of 7x7mm.

Feature Summary

• AEC-Q100 qualified for automotive functional safety applications
• Integrated analog peripherals including 14-channel 12-bit ADC and 1-channel 10-bit DAC
• Supports advanced timer functions with PWM capabilities and DMA transfers
• Includes power management features such as Power-On Reset and Brown-out Detection

Applications

• Automotive body electronics and lighting control systems
• Industrial motor control and automation devices
• Consumer appliances requiring robust MCU performance
• Portable battery-powered equipment

Procurement Notes

Verify the specific suffix 'AF' against official Microchip documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with existing design constraints regarding the 32-TQFP footprint and pinout. Cross-reference the latest datasheet errata for any known silicon revisions or operational clarifications before finalizing procurement specifications.

Selection Notes

Select this component when automotive-grade reliability is required alongside standard SAM D21 functionality. It provides higher memory capacity than the E16 variant while maintaining the same TQFP-32 form factor. Consider alternative packages like QFN if board space is more critical than leaded package availability. Verify that the 48MHz clock speed meets the processing requirements of the target application.

Part Context

This part belongs to the SAM D21E series within the broader SAM D21 family of 32-bit microcontrollers. It shares architectural similarities with other SAM D21 variants but is distinguished by its specific memory size and automotive qualification status. The series is designed for applications needing low power consumption combined with high performance and extensive peripheral integration.

Replacement Considerations

ATSAMD21E17L-AFT serves as a tape-and-reel alternative offering identical electrical characteristics and functionality within the same package type.