ATSAMD21G15B-MF

Overview

The ATSAMD21G15B-MF is an ARM Cortex-M0+ microcontroller from the SAM D21 series, housed in a 48-pin QFN package. It features 32 KB of Flash memory and 4 KB of RAM. The device operates at a maximum clock frequency of 48 MHz with a supply voltage range of 1.62 V to 3.6 V. It includes a 12-bit ADC and supports up to 38 I/O pins. The component is rated for an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Integrates an ARM Cortex-M0+ core for efficient 32-bit processing.
• Includes advanced analog peripherals such as a 12-bit ADC.
• Supports multiple communication interfaces including USB, SPI, I2C, and USART.
• Designed for low-power operation within a wide voltage range.

Applications

• Industrial control systems requiring high-temperature reliability
• Consumer electronics with USB connectivity needs
• General-purpose embedded control applications

Procurement Notes

Verify the specific suffix MF confirms the 48-QFN package and 125°C temperature rating against the official Microchip datasheet. Ensure compatibility with existing PCB footprints and thermal management requirements for the extended industrial grade. Confirm RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this model when 32 KB of program memory and 4 KB of RAM are sufficient for the application logic. The 48 MHz speed and 12-bit ADC meet standard precision requirements. Choose this variant over others in the SAM D21 family based on the specific pin count and package size constraints of the design.

Part Context

This part belongs to the SAM D21G series, which focuses on functional safety and low-power performance. It shares the same core architecture as other SAM D21 devices but offers specific memory and package configurations tailored for cost-sensitive and space-constrained embedded designs.

Replacement Considerations

Check for direct substitutes within the SAM D21G series with identical memory sizes and packages. Verify that any alternative maintains the same 125°C operating temperature range and QFN-48 footprint to ensure mechanical and thermal compatibility.