ATSAMD20E18A-MNT

Overview

The ATSAMD20E18A-MNT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 256KB of in-system programmable flash memory and 32KB of SRAM. The device includes an analog-to-digital converter with 10 channels and 12-bit resolution, alongside one 10-bit digital-to-analog converter. It supports I2C, SPI, and UART/USART interfaces, providing 26 general-purpose I/O pins. Powered by a voltage range of 2.7V to 5.5V, it operates within a temperature range of -40°C to 105°C and is housed in a 32-VQFN package.

Feature Summary

• Integrates an ARM Cortex-M0+ processor for efficient low-power execution
• Includes multiple communication peripherals such as I2C, SPI, and USART
• Features integrated analog converters including 10-channel 12-bit ADC

Applications

• Industrial control systems requiring robust peripheral connectivity
• Consumer electronics utilizing low-power embedded processing
• Sensor interface modules leveraging high-resolution analog conversion

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature rating. Ensure compatibility with existing board layouts regarding the VQFN footprint. Cross-reference datasheet revisions for any errata or pinout changes before finalizing procurement orders.

Selection Notes

Select this component when a balance of moderate program memory and extensive analog capabilities is required. The 256KB flash accommodates complex firmware, while the 10-channel ADC suits multi-sensor applications. Consider the 32-VQFN package constraints for PCB space limitations compared to larger QFN options.

Part Context

This part belongs to the SAM D20 family, designed for cost-sensitive, low-power applications. It shares architectural similarities with other SAM D series devices but offers specific memory and I/O configurations tailored for compact embedded designs. The E-series variant typically denotes specific pin counts and peripheral sets within the broader product line.

FAQ

What is the maximum operating speed of the ATSAMD20E18A-MNT?

The microcontroller operates at a maximum clock frequency of 48MHz.

Does this device support external oscillators?

The datasheet specifies an internal oscillator type, though external crystal options may be available depending on specific configuration settings.