ATSAMD21E17A-MU

Overview

The ATSAMD21E17A-MU is a 32-bit ARM Cortex-M0+ microcontroller from the SAM D21 series, manufactured by Microchip Technology. It features 128 kB of Flash program memory and 16 kB of SRAM data memory. The device operates with a maximum clock frequency of 48 MHz and supports a supply voltage range of 1.62 V to 3.63 V. It includes an integrated 12-bit ADC with 10 channels and a 10-bit DAC. The component is housed in a 32-pin QFN package and provides 26 general-purpose I/O lines. It supports multiple communication interfaces including I2C, SPI, USART, and LIN.

Feature Summary

• Integrates an ARM Cortex-M0+ processor core for efficient code execution.
• Includes functional safety capabilities compliant with AEC-Q100 standards.
• Supports low-power operation modes suitable for battery-powered applications.

Applications

• Industrial control systems requiring functional safety compliance
• Battery-operated devices utilizing low-power management features
• Embedded systems using serial communication protocols

Procurement Notes

Verify the specific suffix and package type against official datasheets before procurement. Confirm availability status as distribution listings may vary. Ensure compatibility with required operating temperatures and voltage levels. Check for any recent product change notifications or lifecycle updates directly from the manufacturer.

Selection Notes

Select this component when a 32-bit MCU with functional safety certification is required. Compare pin counts and memory sizes against other SAM D21 variants like the ATSAMD21G17A or ATSAMD21J17A if more I/O or storage is needed. Verify that the 32-pin QFN package fits the design constraints.

Part Context

This part belongs to the SAM D21 family of microcontrollers designed for cost-sensitive and power-efficient applications. The E-series variant specifically targets automotive and industrial environments due to its AEC-Q100 qualification. It shares architectural similarities with other Cortex-M0+ based MCUs but offers specific peripheral sets tailored for embedded control tasks.

Replacement Considerations

Check for direct substitutes within the SAM D21 family such as ATSAMD21G17A or ATSAMD21J17A depending on pin count requirements. Verify pin-to-pin compatibility and software library support before switching components.