ATSAMC21J18A-MUT

Overview

The ATSAMC21J18A-MUT is a 32-bit ARM Cortex-M0+ microcontroller from the SAM C21 series, designed for industrial and commercial applications in noisy environments. It features a maximum clock speed of 48 MHz, 256 KB of Flash memory, and 32 KB of SRAM. The device operates within a voltage range of 2.7 V to 5.5 V and supports an extended temperature range of -40°C to +105°C. It includes robust communication peripherals such as CAN FD, SERCOM, and USB Full Speed, along with advanced analog features including multiple ADCs and DACs.

Feature Summary

• Supports Functional Safety (FuSa) requirements for industrial applications
• Integrates CAN FD and SERCOM modules for robust communications
• Includes Peripheral Touch Control (PTC) for user interface development
• Features Advanced Analog capabilities with multiple high-resolution converters

Applications

• Industrial control systems requiring functional safety compliance
• Commercial devices operating in electrically noisy environments
• Motor control applications utilizing advanced peripheral features
• User interface designs leveraging touch control capabilities

Procurement Notes

Verify the specific suffix 'MUT' corresponds to the 64-QFN package and tape-and-reel delivery format. Confirm the temperature grade matches the required operational environment, as variants exist for different thermal ranges. Ensure compatibility with the SAM C21 family development tools, such as the Xplained Pro evaluation kit, for initial prototyping and debugging phases.

Selection Notes

Select this component when a 5V-tolerant Cortex-M0+ MCU with integrated CAN FD is required. The 256 KB Flash and 32 KB RAM provide sufficient resources for complex industrial logic. Consider the 64-pin QFN package constraints for PCB layout. Verify that the AEC-Q100 qualification aligns with automotive or high-reliability industrial standards if applicable.

Part Context

This part belongs to the Microchip SAM C21 family, which targets industrial and commercial markets. The family emphasizes robustness in noisy environments through enhanced communication interfaces and analog performance. The ATSAMC21J18A variant specifically offers higher memory capacity compared to lower-end models in the same series, supporting more complex application firmware.

Replacement Considerations

Consult the official SAM C21 datasheet for pin-compatible alternatives within the same package. Verify memory size and peripheral availability in potential substitutes to ensure functional parity. Check for any silicon errata updates that may affect integration.