ATSAMD21E17D-AU

Overview

The ATSAMD21E17D-AU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21E Functional Safety (FuSa) series. It features 128KB of in-system programmable 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 ten 12-bit ADC channels and one 10-bit DAC. Connectivity options include I2C, LINbus, SPI, USART, and USB interfaces. The component is housed in a 32-TQFP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated functional safety capabilities aligned with automotive reliability standards
• On-chip USB device interface for direct connectivity without external transceivers
• Multiple communication peripherals including LINbus, SPI, and USART support
• Internal oscillator system eliminating need for external clock components

Applications

• Automotive body control modules requiring functional safety compliance
• Industrial controllers utilizing LINbus or CAN-like communication protocols
• Portable devices powered by low-voltage battery sources
• Embedded systems requiring integrated USB connectivity

Procurement Notes

Verify the specific suffix 'AU' corresponds to the TQFP-32 package and industrial temperature grade (-40°C to +85°C). Confirm AEC-Q100 qualification status if automotive deployment is intended. Check RoHS3 compliance documentation for environmental regulations. Ensure ESD handling procedures are followed due to moisture sensitivity level 3 classification.

Selection Notes

Select this model when functional safety certification is required alongside standard MCU performance. Compare pin counts against ATSAMD21G17A-AU if more general-purpose I/O is needed. Consider ATSAMD21J17D variants for higher pin count applications in BGA packages. Verify power consumption requirements against the Cortex-M0+ efficiency profile.

Part Context

This component is part of the Microchip SAM D21 family, specifically the E-series variant designed for functional safety applications. It shares the same core architecture as the broader SAM D21 line but includes additional safety mechanisms and automotive-grade testing. The AU suffix denotes the plastic quad flat pack no-lead (TQFP) package option within this product family.

Replacement Considerations

ATSAMD21E17D-AUT offers identical electrical specifications with tape-and-reel packaging instead of trays. ATSAMD21E17D-MUT provides the same functionality in a VQFN-32 package for space-constrained designs.