ATSAMD20E14A-MU

Overview

The ATSAMD20E14A-MU is a 32-bit microcontroller based on the ARM Cortex-M0+ core, manufactured by Microchip Technology. It features 16KB of in-system self-programmable flash memory and 2KB of SRAM. The device operates at a maximum clock frequency of 48MHz and supports an operating voltage range of 1.62V to 1.95V. It includes a 12-bit analog-to-digital converter with 10 channels and provides 26 general-purpose I/O pins. The component is housed in a 32-lead QFN package and is rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core optimized for low-power embedded applications
• Includes on-chip non-volatile memory for program storage and data retention
• Provides multiple communication interfaces including SPI, I2C, and USART
• Features integrated analog peripherals such as a 12-bit ADC

Applications

• Low-power consumer electronics control
• Industrial sensor nodes
• Battery-operated devices
• Simple human-machine interface controllers

Procurement Notes

Verify the specific suffix 'MU' confirms the QFN-32 package and commercial/industrial temperature grade. Confirm the voltage range matches the system design requirements, as this variant specifies a narrow supply window. Check current production status and lead times directly with authorized distributors or Microchip sales representatives to ensure availability for manufacturing.

Selection Notes

Select this part when a small form factor is required alongside basic ARM Cortex-M0+ performance. It is suitable for designs needing limited flash capacity but requiring standard peripheral connectivity. Compare against other SAM D20 variants if higher memory or different package options are needed. Ensure the power supply architecture strictly adheres to the specified voltage limits.

Part Context

This component belongs to the SAM D20 family of 32-bit microcontrollers. The family is designed for cost-sensitive and power-efficient applications. The 'E' designation typically indicates specific pinout and peripheral configurations within the series. It serves as a foundational MCU for entry-level embedded systems requiring reliable ARM-based processing.

FAQ

What is the maximum operating frequency of the ATSAMD20E14A-MU?

The maximum clock frequency is 48 MHz.

Does this microcontroller include an internal oscillator?

Yes, it features an internal oscillator that can be used as the system clock source.

How many analog input channels are available?

The device provides 10 channels for the 12-bit analog-to-digital converter.