ATSAMD21E15B-MFT

Overview

The ATSAMD21E15B-MFT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, belonging to the SAM D21E Functional Safety (FuSa) series. It features 32KB of Flash memory and 4KB of SRAM. The device operates at a maximum frequency of 48MHz with a supply voltage range of 1.62V to 3.6V. It includes ten 12-bit ADC channels and one 10-bit DAC. Connectivity options include I2C, LINbus, SPI, USART, and USB. The component is housed in a 32-TQFP package and supports an operating temperature range of -40°C to 85°C.

Feature Summary

• Integrated functional safety capabilities aligned with automotive reliability standards
• Supports multiple communication interfaces including USB, LINbus, SPI, and USART
• Includes advanced analog peripherals such as multi-channel ADC and DAC

Applications

• Automotive infotainment systems requiring functional safety compliance
• Industrial control applications utilizing LINbus communication
• Portable devices powered by low-voltage supply rails

Procurement Notes

Verify the specific suffix MFT against official Microchip documentation to confirm the tape-and-reel packaging configuration. Ensure the selected variant matches the required industrial temperature range and functional safety certification status for the target application environment.

Selection Notes

Select this model when functional safety requirements necessitate the SAM D21E series. Compare pin compatibility and package dimensions against existing designs if transitioning from other SAM D21 variants. Confirm that the 32-TQFP footprint aligns with the PCB layout constraints.

Part Context

This part belongs to the SAM D21E family, which extends the standard SAM D21 line with enhanced functional safety features. It shares architectural similarities with other Cortex-M0+ MCUs but offers specific automotive-grade qualifications. The E-series designation indicates the inclusion of safety mechanisms beyond standard consumer-grade components.

Replacement Considerations

ATSAMD21E15B-AUT serves as a pin-compatible alternative in a TQFP package.