ATSAMC21E18A-ANT

Overview

The ATSAMC21E18A-ANT is a 32-bit microcontroller based on the ARM Cortex-M0+ core, operating at a maximum frequency of 48 MHz. It features 256 KB of in-system programmable Flash memory and 32 KB of SRAM. The device includes 26 general-purpose I/Os and supports multiple communication interfaces including CANbus, I2C, LINbus, SPI, and UART/USART. It integrates analog peripherals such as ten 12-bit ADC channels, one 16-bit ADC channel, and one 10-bit DAC. Powered by a supply voltage ranging from 2.7 V to 5.5 V, it operates within a temperature range of -40°C to +105°C and is housed in a 32-pin TQFP package.

Feature Summary

• Functional Safety (FuSa) certification for automotive applications
• Integrated CAN FD controller for robust industrial communication
• Peripheral Touch Control (PTC) module for capacitive sensing user interfaces

Applications

• Automotive body electronics and gateway modules
• Industrial motor control systems
• Consumer appliances with touch interface requirements

Procurement Notes

Verify the specific suffix 'ANT' confirms the 32-pin TQFP package and 105°C extended temperature rating. Confirm AEC-Q100 qualification status if required for automotive compliance. Check current RoHS and REACH declarations against latest Microchip documentation. Ensure ESD handling procedures are followed during assembly due to surface mount sensitivity.

Selection Notes

Select this component when Functional Safety integrity is required alongside standard MCU capabilities. Compare pin counts and peripheral sets against other SAM C21 variants like the G-series for different I/O density needs. Consider the 5V tolerance of inputs for direct interfacing with legacy 5V logic without level shifting. Evaluate power consumption profiles against low-power SAM D or L series if battery operation is critical.

Part Context

This part belongs to the Microchip SAM C21 family, designed for industrial and commercial applications in noisy environments. The series emphasizes robust communications via SERCOM and CAN FD, along with advanced motor control peripherals. It targets applications requiring high reliability and functional safety standards in automotive and industrial sectors.

Replacement Considerations

ATSAMC21E18A-AU: Same electrical specifications but in a 32-pin QFN package instead of TQFP.