ATSAMC21G18A-MNT

Overview

The ATSAMC21G18A-MNT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, designed for automotive applications with AEC-Q100 qualification. It features 256 KB of in-system programmable flash memory and 32 KB of SRAM. The device operates at clock frequencies up to 48 MHz or 64 MHz depending on temperature conditions, within a supply voltage range of 2.7 V to 5.5 V. It includes advanced analog peripherals such as multiple ADCs and a DAC, along with comprehensive connectivity interfaces.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust operation in demanding environments.
• Integrated functional safety capabilities supporting ISO 26262 requirements for safety-critical systems.
• High-performance Cortex-M0+ processor with single-cycle hardware multiplication and memory protection unit.

Applications

• Automotive body electronics and control modules
• Safety-critical embedded systems requiring functional safety certification
• Industrial controllers operating in harsh thermal conditions

Procurement Notes

Verify the specific suffix 'MNT' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the AEC-Q100 qualification status remains active for this specific lot, as automotive certifications may undergo periodic review. Ensure compatibility with the target board's thermal management design given the QFN-48 package constraints.

Selection Notes

Select this component when automotive qualification and functional safety are mandatory requirements. The 256 KB flash size accommodates complex firmware updates typical in automotive diagnostics. Compare against non-automotive variants if cost sensitivity outweighs the need for extended temperature ranges and rigorous quality assurance protocols defined by automotive standards.

Part Context

This part belongs to the SAM C21 family, which integrates high-speed performance with low power consumption. The G-series designation indicates specific pin counts and peripheral configurations tailored for mid-range applications. The MNT suffix specifically denotes the reel packaging variant, distinguishing it from cut-tape or tube options available within the same product line.

Replacement Considerations

ATSAMC21G18A-AUT (TQFP-48 package)

FAQ

What is the maximum operating temperature for this component?

The ATSAMC21G18A-MNT supports an extended industrial temperature range up to +105°C, suitable for automotive under-hood applications.

Does this MCU support CAN communication?

Yes, the device includes integrated CAN bus interfaces, facilitating communication in automotive network architectures.