ATSAMG55J19A-AU

Overview

The ATSAMG55J19A-AU is a 32-bit microcontroller from the SAM G55 series, featuring an ARM Cortex-M4 core with a maximum clock speed of 120MHz. It integrates 512KB of flash memory and 176KB of SRAM within a 64-LQFP package. The device supports a supply voltage range of 1.62V to 3.6V and operates between -40°C and +85°C. Connectivity includes I2C, SPI, USART, USB, and I2S interfaces, alongside eight 12-bit ADC channels.

Feature Summary

• Integrates a 32-bit ARM Cortex-M4 processor with a floating-point unit for efficient computational performance.
• Provides extensive connectivity options including USB, I2C, SPI, USART, and I2S peripherals.
• Features integrated DMA capabilities to manage data transfers without excessive CPU intervention.

Applications

• Industrial control systems requiring robust communication interfaces
• Motor control applications utilizing the integrated FPU
• Data acquisition systems leveraging multiple ADC channels

Procurement Notes

Verify the specific suffix 'AU' corresponds to the 64-LQFP tray packaging configuration. Confirm that the operating temperature range meets the environmental requirements of the target application. Ensure compatibility with existing design tools and development platforms provided by Microchip Technology for the SAM G55 family.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required in a compact surface-mount package. The inclusion of USB and I2S makes it suitable for audio or serial communication tasks. Compare RAM and Flash capacities against other SAM G55 variants if larger memory resources are needed.

Part Context

This part belongs to the SAM G55 family of SMART-based ARM microcontrollers designed for high-performance, low-power applications. The J-series variant typically offers enhanced pin counts and peripheral sets compared to the G-series. It serves as a solution for complex embedded tasks requiring reliable real-time processing capabilities.

Replacement Considerations

Consult official substitution guides for compatible devices within the SAM G55 family. Verify pinout and register compatibility before replacing with similar models such as those in the ATSAME51 or ATSAMD51 series, noting architectural differences.