ATSAMC21J17A-MNT

Overview

The ATSAMC21J17A-MNT 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 supports a supply voltage range of 2.7 V to 5.5 V and includes an integrated 10-bit DAC and twenty 12-bit ADC channels. Connectivity options include LIN, I2C, PMBus, SPI, and USART interfaces. It is housed in a 64-pin VQFN package with dimensions of 9x9 mm and is rated for an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrated Functional Safety (FuSa) capabilities compliant with ISO 26262 standards
• Supports automotive applications through AEC-Q100 qualification
• Includes hardware security features such as Read-Out Protection and JTAG lock bits

Applications

• Automotive body electronics and comfort systems
• Industrial motor control and automation
• Consumer appliances requiring robust interface support

Procurement Notes

Verify the specific suffix MNT indicates tape and reel packaging when ordering. Confirm that the functional safety documentation aligns with your system's required ASIL level. Ensure ESD protection measures are adequate for the exposed pad thermal relief design in the VQFN package during assembly.

Selection Notes

Select this component if a 5V tolerant interface is required alongside automotive reliability standards. Compare against the ATSAMD21 series if automotive qualification is not necessary, as the D-series may offer different cost structures. Consider the ATSAMC21G series if a smaller 48-pin package suffices for the pin count requirements.

Part Context

This part belongs to the Microchip SAM C21 family, which extends the popular SAM D21 architecture with enhanced automotive-grade specifications. The J variant specifically provides a high pin count suitable for complex peripheral integration while maintaining low power consumption characteristics typical of the Cortex-M0+ class.

Replacement Considerations

ATSAMD21J17A-MNT serves as a non-automotive alternative but lacks AEC-Q100 certification. ATSAMC21J18A-MNT offers increased memory capacity within the same package.