ATSAMD21E15L-MF

Overview

The ATSAMD21E15L-MF is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21E series, designed for functional safety applications. It features 32KB of flash memory and 4KB of SRAM, operating at a maximum clock frequency of 48MHz. The device supports a supply voltage range of 1.6V to 3.6V and includes an internal oscillator. It integrates multiple communication interfaces including I2C, SPI, USART, USB, LINbus, and I2S. The component is housed in a 32-VQFN package with dimensions of 5x5mm and is rated for an extended industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrated Functional Safety (FuSa) capabilities compliant with AEC-Q100 automotive standards
• Advanced analog peripherals including 10-channel 12-bit ADC and 1-channel 10-bit DAC
• Comprehensive connectivity suite supporting USB, LINbus, I2S, and standard serial protocols
• Low-power architecture optimized for battery-operated embedded systems

Applications

• Automotive infotainment and body control modules requiring functional safety certification
• Industrial sensor nodes and data acquisition systems
• Consumer electronics with low power consumption requirements
• Medical devices needing reliable microcontroller performance

Procurement Notes

Verify the specific suffix 'MF' against official Microchip documentation to confirm the exact package type and temperature grade, as suffixes can vary by distributor. Ensure compatibility with your PCB footprint design for the 32-VQFN package. Check for any recent Product Change Notifications (PCNs) regarding assembly or fabrication site changes that may affect long-term availability or specifications.

Selection Notes

Select this component when functional safety compliance is mandatory for the application. It is suitable for designs requiring moderate processing speed with integrated analog conversion capabilities. Consider the 32-VQFN package constraints for board space. Compare with other SAM D21 variants if higher memory capacity or different interface options are needed.

Part Context

This part belongs to the SAM D21E family, which extends the standard SAM D21 line with enhanced functional safety features. It shares the core Cortex-M0+ architecture with other members but adds specific certifications and reliability measures required for automotive and industrial sectors. The E-series designation indicates these safety-focused enhancements within the broader Microchip MCU portfolio.

Replacement Considerations

Direct substitutes include other SAM D21E variants with compatible pinouts and memory sizes, such as ATSAMD21E15B-AUT or ATSAMD21E15L-MNT, provided the package and temperature grades match the design requirements.