ATSAME54N20A-AF-SL3

Overview

The ATSAME54N20A-AF-SL3 is a 32-bit microcontroller from the Microchip SAM E54 family, built on an ARM Cortex-M4F core. It features 1 MB of in-system programmable flash memory and 256 KB of SRAM. The device operates at a maximum clock frequency of 120 MHz and supports a supply voltage range of 1.71 V to 3.63 V. It includes 81 general-purpose I/Os and integrates multiple communication interfaces including CAN, Ethernet, I2C, SPI, UART, and USB. The component is housed in a 100-TQFP package with dimensions of 14x14 mm.

Feature Summary

• Integrated floating-point unit within the ARM Cortex-M4F core for efficient mathematical processing
• Supports automotive reliability standards through AEC-Q100 qualification
• Includes comprehensive connectivity options such as Ethernet and CAN bus controllers
• Features high-resolution analog-to-digital conversion capabilities

Applications

• Automotive infotainment systems
• Industrial motor control applications
• Smart energy metering devices
• IoT gateway nodes requiring robust connectivity

Procurement Notes

Verify the specific suffix AF-SL3 against official datasheets to confirm package type and tape-and-reel specifications. Ensure compatibility with required operating temperature ranges and voltage levels. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status prior to integration into final assemblies.

Selection Notes

Select this model when 120 MHz performance and 1 MB flash are required alongside automotive-grade reliability. Compare against other SAM E54 variants based on I/O count and package availability. Consider thermal management requirements for TQFP packaging in enclosed environments. Evaluate peripheral needs such as Ethernet or CAN support before choosing alternative MCU families.

Part Context

This component belongs to the SAM E54 series designed for high-performance embedded applications. It shares architectural similarities with the SAM D5x family but offers enhanced security and connectivity features. The series targets markets requiring reliable real-time processing and extensive peripheral integration for complex system designs.

Replacement Considerations

ATSAME54P20A-AF-SL3: Offers identical core and memory but in a 128-TQFP package with additional I/Os. ATSAME54N20A-AUT-EFP: Automotive qualified version in 100-TQFP with potentially different environmental ratings.