ATSAMD21E15B-MUT

Overview

The ATSAMD21E15B-MUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21E series, designed for functional safety applications. It features a maximum clock speed of 48 MHz, 32 KB of flash memory, and 4 KB of SRAM. The device operates within a voltage range of 1.62 V to 3.6 V and supports an operating temperature range of -40°C to +85°C. It includes ten 12-bit ADC channels and one 10-bit DAC. Connectivity options include I2C, SPI, USART, USB, and LINbus interfaces. The component is housed in a 32-VQFN package with dimensions of 5x5 mm.

Feature Summary

• Integrated AEC-Q100 qualification for automotive reliability standards
• Functional Safety (FuSa) compliant architecture for safety-critical systems
• Advanced analog peripherals including multiple high-resolution ADCs and a DAC
• Comprehensive peripheral set supporting DMA, PWM, and various communication protocols

Applications

• Automotive infotainment and body control modules
• Industrial motor control and sensor interfaces
• Safety-certified consumer electronics devices
• IoT gateways requiring robust connectivity and processing

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the AEC-Q100 qualification status meets the specific automotive grade requirements of the target application. Ensure compatibility with the 32-VQFN footprint during PCB layout design. Cross-reference the functional safety documentation to validate compliance with relevant industry standards before final integration.

Selection Notes

Select this variant when automotive-grade reliability and functional safety certification are mandatory. The 32 KB flash capacity suits applications with moderate code size requirements. The inclusion of USB and LINbus interfaces makes it suitable for connected vehicle or industrial networking roles. Consider the 48 MHz performance limit against higher-speed alternatives if real-time processing demands exceed these specifications. Verify power supply constraints align with the 1.62 V to 3.6 V operating range.

Part Context

This component belongs to the Microchip SAM D21E family, which extends the standard SAM D21 line with enhanced functional safety features. The 'E' designation indicates automotive qualification under AEC-Q100 standards. The 'B' suffix typically denotes the temperature grade and package type, while 'MUT' specifies the reel packaging. This family targets designers needing certified MCUs for safety-related systems without moving to more complex architectures.

Replacement Considerations

Direct substitutes within the same family include ATSAMD21E15A variants, though package and suffix differences must be verified. Higher memory configurations like ATSAMD21E17 offer increased storage but require software adaptation. Lower memory parts such as ATSAMD21E14 may suffice for simpler applications. Always verify pin-to-pin compatibility and electrical characteristics before substitution.