ATSAMD21G16B-MF

Overview

The ATSAMD21G16B-MF is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21G Functional Safety (FuSa) series. It features 64KB of Flash memory and 8KB of SRAM. The device operates at a maximum clock speed of 48MHz with an internal oscillator. It supports a supply voltage range of 1.62V to 3.6V and functions within a temperature range of -40°C to 125°C. Key peripherals include 14-channel 12-bit ADCs, one 10-bit DAC, and interfaces such as I2C, SPI, USART, LINbus, and USB. The component is AEC-Q100 qualified for automotive applications.

Feature Summary

• Functional Safety (FuSa) certified design compliant with automotive reliability standards
• Integrated advanced analog subsystem including multiple high-resolution ADC channels and a DAC
• Comprehensive connectivity suite supporting standard serial protocols and USB functionality
• Robust operating capability across extended industrial and automotive temperature ranges

Applications

• Automotive embedded control systems requiring functional safety certification
• Industrial sensor nodes utilizing high-precision analog signal acquisition
• Consumer electronics requiring low-power operation and compact packaging
• General-purpose embedded controllers in harsh environmental conditions

Procurement Notes

Verify the specific suffix 'MF' against official Microchip documentation to confirm package type and tape/reel specifications. Ensure the selected variant matches the required temperature grade and automotive qualification status. Cross-reference the datasheet revision to confirm peripheral availability and errata updates before finalizing procurement orders.

Selection Notes

Select this component when automotive functional safety compliance is mandatory alongside compact surface-mount packaging. Compare pin counts and peripheral sets against other SAM D21G variants to ensure interface compatibility. Consider the 48MHz processing speed and memory size relative to application complexity and power consumption constraints.

Part Context

This part belongs to the Microchip SAM D21G family, which targets automotive and industrial markets with built-in functional safety features. The G-series variants typically offer moderate memory configurations suitable for cost-sensitive applications requiring robust performance. The B-suffix indicates the automotive-grade temperature rating.