ATSAMC20G18A-AUT

Overview

The ATSAMC20G18A-AUT is an automotive-grade ARM microcontroller from the Microchip SAM C20 series, featuring an ARM Cortex-M0+ core. It integrates 256 kB of Flash program memory and 32 kB of SRAM data memory within a 48-lead TQFP package. The device operates at a maximum clock frequency of 48 MHz and supports a supply voltage range of 2.7 V to 5.5 V. It includes a 12-bit ADC with 12 channels and provides 38 general-purpose I/O pins. Certified under AEC-Q100 standards, it functions reliably across temperatures from -40°C to +85°C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments
• Integrated 12-bit analog-to-digital converter supporting multiple input channels
• Supports LIN bus communication protocols alongside standard serial interfaces
• Includes on-chip EEPROM for non-volatile data storage requirements

Applications

• Automotive body control modules
• LIN bus gateway nodes
• Sensor interface units
• In-vehicle networking controllers

Procurement Notes

Verify the specific suffix 'AUT' confirms AEC-Q100 automotive qualification status directly on the manufacturer datasheet. Ensure the 48-TQFP package dimensions match your PCB footprint design constraints. Confirm that the operating temperature range meets your specific environmental requirements before finalizing component selection.

Selection Notes

Select this component when automotive certification is mandatory for the application. Compare memory sizes against other SAM C20 variants if larger storage is needed. Verify that the 48 MHz processing speed satisfies real-time control latency requirements. Check pin availability for required peripheral connections.

Part Context

This part belongs to the Microchip SAM C20 family of 32-bit ARM Cortex-M0+ microcontrollers designed for cost-sensitive embedded applications. The G18 variant specifically offers 256 kB of Flash memory. The AUT suffix denotes automotive grade qualification, distinguishing it from commercial grade counterparts within the same architectural family.

Replacement Considerations

• ATSAMC20G18A-AU

FAQ

Does the ATSAMC20G18A-AUT support LIN bus communication?

Yes, the datasheet specifications list LIN bus as one of the supported interface types alongside SPI, USART, and I2C.

What is the maximum operating temperature for this component?

The maximum operating temperature is specified as +85°C according to the product attributes.

Is there internal EEPROM memory available?

Yes, the component specifications indicate the presence of on-chip EEPROM data type for non-volatile storage.