ATSAML21G16B-MNT

Overview

The ATSAML21G16B-MNT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM L21 series, designed for low-power applications. It features 64 kB of Flash memory and 8 kB of SRAM, operating at a maximum clock frequency of 48 MHz. The device supports a supply voltage range of 1.62 V to 3.63 V and operates within an industrial temperature range of -40°C to +85°C. It integrates advanced analog peripherals including 14-channel 12-bit ADCs and a 12-bit DAC. Connectivity options include I2C, LIN, SPI, USART, and USB interfaces, housed in a 48-VQFN package.

Feature Summary

• Integrated functional safety capabilities aligned with automotive reliability standards
• Advanced analog subsystem featuring high-resolution ADCs and digital-to-digital converters
• Low-power architecture optimized for battery-operated embedded systems
• Comprehensive peripheral set supporting multiple serial communication protocols

Applications

• Industrial control systems requiring robust communication interfaces
• Battery-powered consumer electronics utilizing low-power modes
• Automotive infotainment and body control modules
• Smart home devices with sensor integration needs

Procurement Notes

Verify the specific suffix MNT confirms the 48-VQFN package and industrial temperature grade during sourcing. Confirm RoHS compliance status as indicated in official documentation. Ensure compatibility with required programming interfaces and debuggers. Check for any recent production change notices affecting pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and advanced analog performance is required in a compact footprint. It is suitable for designs needing USB connectivity alongside standard serial buses. Consider alternative packages if board space constraints differ from the VQFN form factor. Evaluate power consumption requirements against the Cortex-M0+ efficiency profile for standby and active modes.

Part Context

This MCU belongs to the SAM L21 family, which emphasizes low power consumption and functional safety for automotive and industrial markets. It shares architectural similarities with the SAM D21 series but includes enhanced analog features and safety certifications. The G16 variant specifically denotes the 64 kB Flash configuration within this product line.

FAQ

Does the ATSAML21G16B-MNT support functional safety standards?

Yes, it is part of the Functional Safety (FuSa) qualified SAM L21 series, meeting AEC-Q100 automotive reliability standards.

What is the maximum operating temperature for this device?

The device is rated for an industrial temperature range extending up to +85°C.