ATSAMD20G16B-AN

Overview

The ATSAMD20G16B-AN is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D20 series. It features 64 kB of Flash program memory and 8 kB of SRAM data memory. The device operates at a maximum clock frequency of 48 MHz with a supply voltage range of 1.62 V to 3.63 V. It includes an integrated 12-bit ADC with 14 channels and a 10-bit DAC. The component supports I2C, SPI, and USART interfaces and is housed in a 48-pin TQFP package.

Feature Summary

• ARM Cortex-M0+ processor core for efficient code execution
• Integrated analog-to-digital converter with multiple input channels
• On-chip non-volatile memory for program storage
• Standard serial communication interface support

Applications

• General-purpose embedded control systems
• Low-power sensor interfacing applications
• Industrial automation controllers
• Consumer electronics devices

Procurement Notes

Verify the specific suffix 'AN' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 48-pin TQFP configuration. Check for any recent production lifecycle notices or obsolescence warnings directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this model when a balance of moderate memory capacity and low power consumption is required. The 48 MHz speed suits simple control loops but may be insufficient for complex real-time processing tasks requiring higher throughput. Consider pin count availability relative to system interface requirements.

Part Context

This part belongs to the Microchip SAM D20 family, designed for cost-sensitive and power-efficient applications. It shares architectural similarities with other SAMD2x variants but differs in memory size and peripheral counts. The family targets entry-level 32-bit MCU markets replacing legacy 8/16-bit architectures.

Replacement Considerations

Consult the official SAM D20 Family datasheet for verified pin-compatible alternatives within the same series. Cross-referencing specific suffix codes is necessary as they denote distinct packaging or environmental ratings.