ATSAMG54N19B-AU

Overview

The ATSAMG54N19B-AU is a 32-bit ARM Cortex-M4 microcontroller featuring 512 Kbytes of Flash and 96 Kbytes of SRAM. It operates at a maximum clock frequency of 96 MHz within an industrial temperature range of -40°C to +85°C. The device utilizes a 100-pin LQFP package and supports a supply voltage between 1.62V and 3.45V. Key peripherals include one USART, two UARTs, three TWI interfaces, one SPI, two I2S controllers, and an 8-channel 12-bit ADC.

Feature Summary

• Integrated Floating Point Unit (FPU) and DSP instructions for high-performance processing
• Event System enables peripheral-to-peripheral communication without processor intervention
• SleepWalking capability allows asynchronous wake-up from low-power modes via specific peripherals
• Supports up to 28 Peripheral DMA channels for efficient data transfer

Applications

• Consumer electronics devices
• Industrial control systems
• PC peripheral components

Procurement Notes

Verify the component against official Microchip documentation to confirm pinout compatibility and electrical specifications. Ensure that the ordering suffix matches the required package type and carrier format. Cross-reference the datasheet revision history to validate the accuracy of the provided technical parameters before integration into designs.

Selection Notes

Select this model when a balance of processing power and low power consumption is required. The inclusion of an FPU makes it suitable for applications needing mathematical acceleration. Verify that the available GPIO count meets interface requirements and that the operating voltage aligns with the system's power rails.

Part Context

This component belongs to the SAM G54 series, which are based on the ARM Cortex-M4 core. The series offers varying memory configurations and packages. The N19 variant specifically denotes the 512KB Flash configuration housed in the 100-pin LQFP package, distinguishing it from the WLCSP options available in the same family.

Replacement Considerations

Consult the manufacturer's cross-reference tools for verified substitutes. Ensure any replacement maintains the same core architecture, memory size, and package dimensions to guarantee mechanical and software compatibility.