ATSAMD21G17L-MNT

Overview

The ATSAMD21G17L-MNT 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. 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 38 I/O pins. Analog capabilities include 18 channels of 12-bit ADC and one 10-bit DAC. Communication interfaces comprise I2C, LINbus, SPI, and UART/USART. The component is housed in a 48-QFN (7x7) package and functions within a temperature range of -40°C to 105°C.

Feature Summary

• Integrated functional safety design compliant with automotive reliability standards
• Advanced analog subsystem with multiple high-resolution ADC channels and a DAC
• Comprehensive peripheral set including DMA, I2S, PWM, and watchdog timer

Applications

• Automotive infotainment systems requiring functional safety certification
• Industrial control units utilizing LINbus communication
• Battery-powered devices leveraging low-power operational modes

Procurement Notes

Verify the specific suffix L-MNT against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts for the 48-QFN footprint. Cross-reference the latest errata sheet for any silicon-specific revisions that may impact implementation. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement.

Selection Notes

Select this model when functional safety requirements dictate the use of the SAM D21G series rather than standard variants. The 128KB flash capacity suits applications needing substantial code storage without external memory. The 48-QFN package offers a compact solution for space-constrained designs. Verify that the 1.62V minimum supply voltage aligns with the system power architecture.

Part Context

This component is part of the broader SAM D21 family of 32-bit ARM Cortex-M0+ microcontrollers. The G-series designation specifically indicates inclusion of functional safety features aligned with AEC-Q100 standards. It shares architectural similarities with other SAM D21 parts but differs in memory size and safety certifications. The L-MNT suffix denotes the specific QFN package variant.

Replacement Considerations

Direct substitutes include ATSAMD21G17D-MUT and ATSAMD21G17A-AU, which share identical core specifications and memory maps. These alternatives differ primarily in package style (QFN vs TQFP) and operating temperature ranges. Verify pinout compatibility and thermal performance when considering these cross-package replacements.