ATSAMD20G16B-ANT

Overview

The ATSAMD20G16B-ANT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 64KB of in-system programmable Flash memory and 8KB of SRAM. The device supports a supply voltage range of 1.62V to 3.6V and includes 38 general-purpose I/O pins. Connectivity options include six SERCOM modules configurable as UART, SPI, or I2C. Integrated peripherals comprise a 12-bit ADC, brown-out detect/reset, power-on reset, and a watchdog timer.

Feature Summary

• ARM Cortex-M0+ processor core for efficient 32-bit execution
• Configurable Serial Communication Modules (SERCOM) supporting multiple protocols
• Integrated analog-to-digital conversion with 12-bit resolution
• On-chip memory including Flash and static RAM

Applications

• General-purpose embedded control systems
• Low-power sensor interface nodes
• Industrial communication gateways
• Consumer electronic device controllers

Procurement Notes

Verify the specific suffix 'ANT' corresponds to the 48-TQFP package and the 1.62V–3.6V voltage range during sourcing. Confirm that the component meets RoHS3 and REACH compliance requirements for your region. Ensure the ordering part number matches the exact pin count and package dimensions specified in the official datasheet to avoid integration errors.

Selection Notes

Select this model when a balance of moderate program storage and low-voltage operation is required. The 64KB Flash capacity suits applications needing more code space than smaller variants but less than larger series members. The TQFP-48 package offers a suitable footprint for standard surface-mount assembly processes compared to QFN alternatives.

Part Context

This component belongs to the Microchip SAM D20G family, designed for cost-sensitive applications requiring ARM Cortex-M0+ performance. The G-series designation typically indicates specific peripheral configurations and memory sizes within the broader SAM D20 ecosystem. It serves as a scalable solution for developers transitioning from 8-bit architectures to 32-bit processing.

Replacement Considerations

Direct substitutes within the same package and pinout include other SAM D20G variants such as the ATSAMD20G15B-ANT or ATSAMD20J16B-ANT, provided memory and peripheral differences are acceptable. Cross-family replacements like the SAM D21 series require software adaptation due to architectural changes.