ATSAMD21G17D-AUT

Overview

The ATSAMD21G17D-AUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21G 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 an internal oscillator. It supports a supply voltage range of 1.62V to 3.63V and includes advanced analog peripherals such as 14-channel 12-bit ADCs and one 10-bit DAC. Connectivity options include USB, I2C, SPI, USART, LINbus, and I2S interfaces.

Feature Summary

• Integrated Functional Safety (FuSa) capabilities for safety-critical applications
• Advanced analog subsystem with multiple high-resolution ADC channels and a DAC
• Built-in USB device interface for communication and programming
• Low-power operation with multiple sleep modes optimized for battery life

Applications

• Industrial control systems requiring functional safety compliance
• Battery-powered IoT sensor nodes
• Medical devices with strict reliability standards
• Automotive interior electronics

Procurement Notes

Verify the package type carefully. The suffix 'AU' typically denotes a TQFP-48 tray package, while 'AUT' indicates a TQFP-64 tape-and-reel package. Confirm the specific pin count and reel quantity required for your assembly process against the manufacturer's official datasheet to ensure compatibility with your PCB footprint and pick-and-place equipment.

Selection Notes

Select this component when functional safety certification is required alongside standard MCU features. Compare pin counts between G-series (48-pin) and J-series (64-pin) variants to match I/O requirements. Ensure the design accommodates the specific operating temperature range and voltage levels specified in the electrical characteristics table of the official documentation.

Part Context

This part belongs to the SAM D21G family, which extends the standard SAM D21 line with functional safety features. It shares the Cortex-M0+ architecture with other SAM D21 variants but differs in memory size, package options, and safety qualification status. It is designed for applications needing deterministic performance and fault detection mechanisms.

Replacement Considerations

Direct substitutes within the same FuSa family include ATSAMD21G17D-AU for identical functionality in a different package. For higher pin counts, consider ATSAMD21J17D-AUT. Verify that any replacement maintains the same flash size, RAM capacity, and safety integrity level requirements.