ATSAMD51N19A-AUT

Overview

The ATSAMD51N19A-AUT is a 32-bit microcontroller based on the ARM Cortex-M4F core, operating at a maximum clock frequency of 120 MHz. It features 512 KB of in-system programmable flash memory and 192 KB of SRAM. The device includes a 12-bit ADC with 28 channels and two 12-bit DACs. It supports multiple communication interfaces including USB, SPI, I2C, USART, LINbus, IrDA, QSPI, MMC/SD, and EBI/EMI. The unit operates within a voltage range of 1.71 V to 3.63 V and is rated for an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrated ARM Cortex-M4F processor with hardware floating-point unit for efficient signal processing.
• Supports high-speed serial communication protocols including USB Full-Speed and QSPI for external memory access.
• Includes dedicated peripherals such as DMA controller, I2S interface, and multiple PWM channels.
• Features internal oscillator options and comprehensive analog-to-digital conversion capabilities.

Applications

• Industrial control systems requiring robust peripheral integration
• Medical devices utilizing precise analog signal acquisition
• Consumer electronics employing USB connectivity
• Automotive applications meeting AEC-Q100 Grade 1 standards

Procurement Notes

Verify the specific suffix 'AUT' confirms automotive qualification (AEC-Q100) and extended temperature range (-40°C to +85°C). Confirm package type is TQFP-100. Ensure compatibility with existing design infrastructure regarding voltage levels and pinout assignments before finalizing procurement orders.

Selection Notes

Select this component when automotive reliability is required alongside high-performance computing. The 512 KB flash and 192 KB RAM balance storage needs with cost efficiency. Consider the 100-pin TQFP package for sufficient I/O count without moving to larger footprints. Verify that the 120 MHz speed meets real-time processing requirements for the target application.

Part Context

This part belongs to the SAM D51 family, designed for high-performance embedded applications. It shares architectural similarities with other SAM D5x devices but offers specific memory and I/O configurations. The family emphasizes low power consumption while maintaining high throughput through the Cortex-M4F core and advanced peripheral sets.

Replacement Considerations

ATSAMD51N19A-AU-EFP provides identical electrical specifications and functionality but utilizes tape-and-reel packaging instead of tube packaging. Both parts share the same core, memory, and peripheral configurations suitable for direct substitution in designs accommodating either packaging style.