ATSAMD20G18A-MN

Overview

The ATSAMD20G18A-MN is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at frequencies up to 48 MHz. It features 256 KB of in-system self-programmable Flash memory and 32 KB of SRAM. The device includes a 12-bit ADC with multiple channels and a 10-bit DAC. It supports various communication interfaces including USART, I2C, and SPI via SERCOM peripherals. The unit is housed in a 48-VFQFN package with exposed pad.

Feature Summary

• Integrates an ARM Cortex-M0+ processor with single-cycle hardware multiplier for efficient code execution.
• Provides flexible serial communication through configurable SERCOM modules supporting standard protocols.
• Includes analog conversion capabilities with a 12-bit ADC and a 10-bit DAC for signal processing.
• Supports low-power operation with idle and standby sleep modes and SleepWalking peripheral functionality.

Applications

• General-purpose embedded control systems
• Industrial automation and monitoring devices
• Consumer electronics requiring low power consumption
• Sensor interface applications utilizing ADC/DAC capabilities

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm pinout and package dimensions. Ensure compatibility with existing board layouts regarding the 48-QFN footprint. Confirm voltage supply requirements align with the target application range. Check for any recent errata or datasheet revisions that may impact design implementation.

Selection Notes

Select this component when a balance of moderate program memory and rich peripheral connectivity is required. The 48 MHz speed suits applications needing responsive real-time processing without excessive power draw. Consider the available GPIO count and specific interface needs like I2C or SPI before finalizing the choice.

Part Context

This part belongs to the SAM D20 family of microcontrollers from Microchip Technology. The series is designed for cost-sensitive applications requiring ARM Cortex-M0+ performance. It shares architectural similarities with other SAM D2x variants but differs in memory size and package options.

FAQ

What is the maximum operating frequency of the ATSAMD20G18A-MN?

The device supports clock speeds up to 48 MHz using the internal Digital Frequency Locked Loop (DFLL48M).

Does this microcontroller include a digital-to-analog converter?

Yes, it integrates one 10-bit Digital-to-Analog Converter (DAC) alongside the 12-bit Analog-to-Digital Converter.