ATSAMD51N19A-AUT-EFP

Overview

The ATSAMD51N19A-AUT-EFP is a 32-bit microcontroller from the Microchip SAM D51 series, featuring an ARM Cortex-M4F core with a maximum clock frequency of 120 MHz. It integrates 512 kB of Flash memory and 192 kB of SRAM within a 100-TQFP package. The device supports a supply voltage range of 1.71 V to 3.63 V and operates between -40°C and +85°C. Key peripherals include 24-channel 12-bit ADCs, two 12-bit DACs, and interfaces such as USB, SPI, I2C, USART, QSPI, and I2S.

Feature Summary

• Integrated ARM Cortex-M4F processor with hardware floating-point unit for efficient signal processing
• Extended Flash Performance architecture providing high-speed program execution
• Comprehensive analog subsystem with multiple 12-bit ADC channels and DAC outputs
• Robust connectivity suite including USB Full-Speed interface and standard serial buses

Applications

• Industrial control systems requiring robust peripheral integration
• Medical devices utilizing precise analog-to-digital conversion capabilities
• Smart energy metering applications demanding extended flash performance
• General-purpose embedded control solutions in consumer electronics

Procurement Notes

Verify the specific suffix 'EFP' against official Microchip documentation to confirm the tape-and-reel packaging configuration, as distribution listings may vary. Ensure the order matches the required operating temperature range and package type. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar variants in the SAM D51 family that may differ in memory size or pin count.

Selection Notes

Select this component when a balance of moderate I/O count and substantial memory is required in a 100-pin form factor. It is suitable for designs needing USB connectivity alongside extensive analog input channels. Consider alternative SAM D51 variants if higher RAM capacity or different package constraints are necessary. Evaluate power consumption profiles against application requirements given the 1.71V to 3.63V operating range.

Part Context

This MCU belongs to the SAM D51 family, designed for applications requiring enhanced performance and security features. The series targets industrial, medical, and smart energy markets by combining high-speed processing with rich peripheral sets. The N19 variant specifically denotes the 512 kB Flash and 192 kB RAM configuration within the 100-TQFP package, distinguishing it from other memory options in the lineup.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Variants within the SAM D51 family with differing memory sizes or packages may serve as functional alternatives if pin compatibility is maintained.