ATSAMD20E18A-AN

Overview

The ATSAMD20E18A-AN is a 32-bit microcontroller from the Microchip SAM D20 family, featuring an ARM Cortex-M0+ core. It integrates 256KB of in-system programmable Flash memory and 32KB of SRAM. The device operates at a maximum frequency of 48MHz with a supply voltage range of 1.62V to 3.6V. It includes ten 12-bit ADC channels and supports interfaces such as I2C, SPI, and USART. The component is housed in a 32-pin TQFP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient code execution
• Provides substantial non-volatile storage via 256KB Flash memory
• Includes multiple analog-to-digital conversion channels for sensor interfacing
• Supports standard serial communication protocols including I2C, SPI, and USART

Applications

• General-purpose embedded control systems
• Low-power IoT node implementations
• Industrial monitoring devices requiring analog input processing
• Consumer electronics utilizing serial communication interfaces

Procurement Notes

Verify the specific suffix 'AN' corresponds to the 32-pin TQFP package and the 1.62V to 3.6V operating voltage range during sourcing. Confirm that the procurement channel provides official documentation matching the SAM D20 family datasheet. Ensure compatibility with the required temperature grade for the intended operational environment before finalizing orders.

Selection Notes

Select this model when design requirements necessitate 256KB of program memory and 32KB of data RAM within a 32-pin footprint. It is suitable for applications needing ten 12-bit ADC inputs and standard peripheral interfaces. Consider the 1.62V minimum supply voltage for battery-powered designs compared to higher voltage variants in the same series.

Part Context

This component belongs to the SAM D20E series of 32-bit microcontrollers based on the ARM Cortex-M0+ architecture. The series is designed for cost-sensitive applications requiring moderate performance and low power consumption. The ATSAMD20E18A-AN variant specifically denotes the pin count, memory configuration, and package type within this broader product line.

Replacement Considerations

Cross-reference with other SAM D20 variants such as ATSAMD20E16A or ATSAMD20E15A if reduced memory capacity is acceptable. Verify pinout compatibility and software library support when substituting with different package options like VQFN or AU suffixes.