ATSAMD21E18A-MUT

Overview

The ATSAMD21E18A-MUT 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 supports a supply voltage range of 1.62V to 3.6V and includes an internal oscillator. Connectivity options include I2C, SPI, UART/USART, USB, and LINbus interfaces. Peripheral functions encompass DMA, I2S, PWM, and various reset mechanisms. The component is housed in a 32-VQFN package with dimensions of 5x5mm.

Feature Summary

• Integrates Functional Safety (FuSa) capabilities within the SAM D21 series architecture.
• Provides advanced analog peripherals including multiple 12-bit ADC channels and a 10-bit DAC.
• Supports low-power operation modes suitable for battery-constrained embedded applications.

Applications

• Industrial control systems requiring functional safety compliance
• Portable consumer electronics utilizing USB connectivity
• Automotive infotainment and instrumentation modules

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 32-VQFN 5x5mm package configuration during sourcing. Confirm that the Functional Safety (FuSa) designation aligns with project requirements, as this variant differs from standard SAM D21 models. Ensure compatibility with development tools supporting the ARM Cortex-M0+ architecture for programming and debugging purposes.

Selection Notes

Select this model when a compact 32-pin form factor is required alongside extensive analog input capabilities. The inclusion of LINbus support distinguishes it from variants lacking serial bus interfaces. Consider the 48MHz processing speed adequate for real-time control tasks while maintaining low power consumption profiles typical of the Cortex-M0+ family.

Part Context

This component belongs to the Microchip SAM D21G/J/E family of 32-bit MCUs. These devices are designed for high-performance, low-power applications using the ARM Cortex-M0+ processor. The series emphasizes energy efficiency and integrated peripheral richness, targeting markets such as industrial automation, medical devices, and smart home solutions.

Replacement Considerations

ATSAMD21E18A-AU: Offers identical core specifications but utilizes a 32-TQFP package instead of QFN. ATSAMD21J18A-MUT: Provides increased I/O count and additional ADC channels within a 64-QFN package. ATSAMD21E18A-MZ: Features an extended temperature range up to 125°C compared to the standard -40°C to 85°C rating.