ATSAM4N8BA-AU

Overview

The ATSAM4N8BA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum clock frequency of 100 MHz. It features 512 kB of Flash program memory and 64 kB of SRAM data RAM. The device is housed in a 48-LQFP package with 34 available I/O lines. It supports an input voltage range of 1.62 V to 3.6 V and operates within a temperature range of -40°C to +85°C. Peripheral interfaces include I2C, SPI, and UART/USART.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for efficient code execution and digital signal processing capabilities.
• Includes built-in cryptographic accelerators to secure data transmission and storage without significant CPU overhead.
• Provides multiple communication peripherals including USART, SPI, and I2C for versatile system connectivity.

Applications

• Industrial control systems requiring secure communication protocols
• Smart metering applications with low power consumption needs
• Consumer electronics utilizing encrypted data transfer

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the LQFP-48 form factor. Confirm that the supply chain source provides genuine components with traceable lot codes to avoid counterfeit risks.

Selection Notes

Select this component when a balance of moderate flash capacity and hardware security is required. The 100 MHz speed suits applications needing faster response than Cortex-M0 devices but lower complexity than high-end SAM4S series. Verify that the 34 I/O count meets interface requirements before finalizing the design.

Part Context

This part belongs to the SAM4N family, designed for cost-sensitive embedded applications. It shares architectural similarities with other SAM4N variants but offers specific memory and pin configurations. The family focuses on providing essential security features in a compact footprint for general-purpose MCU tasks.

Replacement Considerations

Consult the SAM4N datasheet for direct pin-compatible alternatives within the same series. Cross-reference specifications for identical memory sizes and peripheral sets to ensure functional equivalence during substitution planning.