ATSAMD21E18A-MFT

Overview

The ATSAMD21E18A-MFT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21 family, manufactured by Microchip Technology. It features 256KB of in-system self-programmable Flash memory and 32KB of SRAM. The device operates at a maximum clock frequency of 48MHz with a supply voltage range of 1.62V to 3.63V. It includes an on-chip 10-channel 12-bit ADC and a 1-channel 10-bit DAC. Connectivity options include I2C, I2S, LINbus, SPI, USART, and USB interfaces. The component is housed in a 32-lead QFN package (MFUT) and supports an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M0+ processor core for efficient code execution.
• Provides extensive analog capabilities with multiple 12-bit ADC channels and a 10-bit DAC.
• Supports versatile communication protocols including USB, SPI, I2C, USART, and LINbus.
• Features robust peripheral sets such as DMA controllers, PWM generators, and watchdog timers.

Applications

• Industrial control systems requiring reliable MCU performance
• Consumer electronics utilizing low-power ARM architectures
• Medical devices needing precise analog signal acquisition
• Smart home automation hubs with USB connectivity

Procurement Notes

Verify the specific suffix 'MFT' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with your PCB footprint design for the QFN-32 variant. Cross-reference the datasheet revision date to confirm current errata status before finalizing procurement specifications.

Selection Notes

Select this model when a balance of moderate Flash capacity and rich analog peripherals is required within a compact QFN package. Compare pin counts and peripheral availability against other SAM D21 variants like the ATSAMD21G or ATSAMD21J series to ensure optimal resource utilization for the target application constraints.

Part Context

This component belongs to the SAM D21 family of 32-bit microcontrollers based on the ARM Cortex-M0+ core. The family is designed for applications demanding low power consumption and high performance. The 'E' designation typically indicates specific memory configurations and peripheral sets within the broader SAM D21 product line offered by Microchip Technology.

FAQ

What is the maximum operating speed of the ATSAMD21E18A-MFT?

The microcontroller supports a maximum system clock frequency of 48 MHz.

Does this part include hardware support for USB communication?

Yes, the device integrates a full-speed USB interface controller alongside standard serial communication peripherals.