ATSAMD21G17L-MFT

Overview

The ATSAMD21G17L-MFT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21G Functional Safety series. It features 128KB of flash memory and 16KB of RAM, operating at a maximum frequency of 48MHz. The device supports a supply voltage range of 1.62V to 3.63V and includes an internal oscillator. Connectivity options include I2C, LINbus, SPI, UART/USART, and USB interfaces. It provides 38 I/O pins and integrates peripherals such as DMA, I2S, PWM, and watchdog timers. Data conversion capabilities consist of 14x12-bit ADCs and one 10-bit DAC. The component is housed in a 48-QFN (7x7) package with exposed pad.

Feature Summary

• Functional Safety (FuSa) certified design for safety-critical applications
• Integrated advanced analog peripherals including multiple high-resolution ADCs and a DAC
• Supports automotive qualification standards with extended temperature ranges
• Includes comprehensive communication interfaces and direct memory access controller

Applications

• Automotive body electronics and control modules
• Industrial automation controllers requiring functional safety compliance
• Consumer devices needing low-power operation with USB connectivity
• Smart sensors and actuators with analog signal processing needs

Procurement Notes

Verify the specific suffix 'MFT' against official Microchip documentation to confirm the exact temperature grade and packaging type, as variations exist within the SAM D21G family. Ensure compatibility with required functional safety integrity levels if deploying in safety-rated systems. Cross-reference the datasheet revision date to account for any errata or specification updates prior to finalizing procurement specifications.

Selection Notes

Select this model when a Functional Safety certified MCU is required alongside USB connectivity and moderate I/O counts. Compare against non-FuSa variants like the ATSAMD21J series if automotive qualification is not mandatory. Consider pin count and package size constraints relative to the 48-QFN form factor. Evaluate peripheral requirements such as the number of available ADC channels against other members of the SAM D21G family.

Part Context

This component is part of the SAM D21G series, which focuses on providing functional safety capabilities for industrial and automotive markets. It shares the Cortex-M0+ architecture with other SAM D21 models but distinguishes itself through FuSa certification and specific analog/peripheral configurations tailored for safety-related control tasks.

Replacement Considerations

ATSAMD21G17L-MUT: Different package variant (QFN vs QFN with different thermal/mechanical specs). ATSAMD21G17D-AU: Different package (TQFP) and potentially different temperature grade. Verify pinout and electrical characteristics match before substitution.