ATSAMD21E17A-MUT

Overview

The ATSAMD21E17A-MUT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 128 KB of in-system programmable Flash memory and 16 KB of SRAM. The device includes an analog-to-digital converter with 10 channels and 12-bit resolution, alongside a single 10-bit digital-to-analog converter. It supports interfaces including I2C, LINbus, SPI, USART, and USB Full-Speed. Powered by a supply voltage ranging from 1.62 V to 3.6 V, it operates within a temperature range of -40°C to +85°C and is housed in a 32-VFQFN package.

Feature Summary

• Integrated Functional Safety (FuSa) capabilities for safety-critical applications
• USB Full-Speed Device interface with dedicated DMA controller support
• Multiple low-power modes including Idle, Sleep, and Standby for energy optimization
• On-chip calibration of internal oscillators to reduce external component requirements

Applications

• Industrial control systems requiring functional safety compliance
• Portable battery-powered devices utilizing low-voltage operation
• USB-enabled peripheral equipment and human interface devices
• Smart sensors and actuators with LINbus connectivity needs

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 32-VFQFN package and tape-and-reel shipping format. Confirm that the 'A' grade indicates the standard commercial/industrial temperature range as documented. Ensure compatibility with existing design tools and check for any recent product change notices affecting pinout or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and functional safety certification is required. It is suitable for designs needing USB connectivity without an external transceiver. Compare against the ATSAMD21J series if more GPIOs are needed, or the ATSAMD21G series for different package options. Evaluate power consumption requirements against the available low-power modes to ensure efficiency targets are met.

Part Context

This part belongs to the SAM D21 family of microcontrollers, which are designed for high-performance, low-power applications. The family shares a common architecture but varies in memory size, package type, and peripheral count. The ATSAMD21E variant specifically targets cost-sensitive applications while maintaining the safety features found in higher-end models within the same series.

Replacement Considerations

Direct pin-compatible replacements within the same package may include other SAM D21 variants with different memory sizes, such as ATSAMD21E15A or ATSAMD21E16A, provided software adaptation is feasible. Cross-family replacements require careful review of register compatibility and peripheral availability.