ATSAMC21J16A-MNT

Overview

The ATSAMC21J16A-MNT is an ARM microcontroller from the SAM C21 series, featuring a Cortex-M0+ core operating at a maximum frequency of 48 MHz. It integrates 64 kB of Flash program memory and 8 kB of SRAM data RAM within a VQFN-64 package. The device supports a supply voltage range of 2.7 V to 5.5 V and includes 52 general-purpose I/O pins. Key peripherals include a 12-bit ADC with 20 channels, a 10-bit DAC, five timers/counters, and communication interfaces such as LIN, I2C, PMBus, SPI, and USART. It is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in demanding environments.
• Integrated Peripheral Touch Control (PTC) capabilities designed for developing responsive user interfaces.
• Advanced motor control peripherals combined with robust communication modules like CAN FD and SERCOM.
• Functional safety features aligned with ISO 26262 requirements for critical system applications.

Applications

• Industrial automation controllers requiring high noise immunity.
• Automotive body electronics and sensor nodes.
• Motor control systems utilizing integrated peripheral touch controls.
• Commercial devices needing reliable serial communication protocols.

Procurement Notes

Verify the specific suffix 'MNT' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 105°C temperature grade matches the thermal design of the target application board. Ensure compatibility with the 5V logic levels specified for the I/O ports to prevent interface mismatches with peripheral components.

Selection Notes

Select this component when a balance of moderate memory capacity and automotive qualification is required. The 64 kB Flash and 8 kB RAM suit applications with constrained code size and limited runtime data needs. The VQFN-64 package offers a compact footprint suitable for space-constrained designs while providing sufficient pin count for diverse peripheral connections.

Part Context

This part belongs to the Microchip SAM C21 family, which targets industrial and commercial applications in noisy environments. The series emphasizes robust communications and advanced motor control features. It serves as a bridge between standard consumer MCUs and higher-end automotive solutions, offering functional safety compliance without excessive complexity or cost.

Replacement Considerations

Consult official substitution lists for variants with different memory sizes or packages within the SAM C21 family. Verify pin-to-pin compatibility if considering alternatives from other manufacturers. Ensure any substitute maintains the same AEC-Q100 qualification level if automotive reliability is mandatory.