ATSAMC20J18A-MNT

Overview

The ATSAMC20J18A-MNT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48MHz. It features 256KB of in-system programmable flash memory and 32KB of SRAM. The device includes twelve 12-bit analog-to-digital converters and supports multiple communication interfaces including I2C, SPI, UART/USART, and LINbus. Powered by a voltage range of 2.7V to 5.5V, it offers 52 general-purpose I/Os and functions within an industrial temperature range of -40°C to 105°C. The component is housed in a 64-pin QFN package.

Feature Summary

• Integrates twelve 12-bit ADC channels for high-resolution analog signal acquisition.
• Supports automotive-grade reliability through AEC-Q100 qualification.
• Includes built-in peripherals such as DMA, power-on reset, and watchdog timer.
• Features internal oscillator for simplified clocking requirements.

Applications

• Automotive body electronics and control modules
• Industrial sensor nodes and data loggers
• Consumer appliances requiring robust MCU performance
• LIN bus network controllers

Procurement Notes

Verify the specific suffix 'MNT' corresponds to the 64-QFN (9x9) package and tape-and-reel packaging configuration. Confirm that the required operating temperature range extends to 105°C, as indicated by the datasheet specifications. Ensure compatibility with the SAM C20/C21 family errata documents before finalizing design implementation.

Selection Notes

Select this model when 256KB of program storage and 32KB of RAM are required alongside extensive analog input capabilities. It is suitable for designs needing AEC-Q100 certification for automotive applications. Consider alternative packages like AU or CN if surface area constraints differ from the 64-QFN footprint.

Part Context

This component belongs to the Microchip SAM C20 series, which targets cost-sensitive embedded applications. The series utilizes the efficient Cortex-M0+ architecture to balance processing power with low power consumption. The J18 variant specifically denotes the memory configuration and peripheral set available in this package.

FAQ

Is the ATSAMC20J18A-MNT qualified for automotive use?

Yes, the device is AEC-Q100 qualified, making it suitable for automotive electronic systems.

What is the maximum operating temperature for this part?

The specified junction temperature range extends up to 105°C.

Does this MCU include a digital-to-analog converter?

No, the ATSAMC20J18A-MNT includes twelve 12-bit ADCs but does not feature a DAC.