ATSAM4N8AA-MU

Overview

The ATSAM4N8AA-MU 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 in-system programmable Flash memory and 64 kB of SRAM. The device includes an 8 kB ROM for boot code and supports a supply voltage range from 1.62 V to 3.6 V. It provides 34 general-purpose I/O pins and integrates multiple communication interfaces including I2C, SPI, and UART. The unit is housed in a 48-pin QFN package with dimensions of 7x7 mm.

Feature Summary

• Integrates an ARM Cortex-M4 processor core with hardware floating-point unit support for efficient digital signal processing.
• Includes built-in cryptographic acceleration capabilities to secure data transmission and storage within embedded applications.
• Features low-power management modes allowing operation across industrial temperature ranges while maintaining performance.

Applications

• Industrial control systems requiring robust processing and secure communication protocols
• Medical devices needing reliable data handling and encryption features
• Consumer electronics utilizing USB connectivity and high-speed peripheral interfaces

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Check for any recent product change notices regarding assembly sites or marking changes that may affect integration timelines.

Selection Notes

Select this component when a balance of processing power and memory capacity is required for cost-sensitive applications. The 48-pin QFN package offers a compact footprint suitable for space-constrained designs. Ensure the application does not require more than 512 kB of Flash or 64 kB of RAM, as larger variants exist within the SAM4N series.

Part Context

This part belongs to the SAM4N family of microcontrollers designed for general-purpose embedded applications. It sits between the lower-end SAM3N series and higher-performance SAM4S series in terms of memory and peripheral count. The family emphasizes security and low power consumption for IoT and industrial markets.

Replacement Considerations

Direct pin-compatible replacements within the same package include other SAM4N variants such as ATSAM4N16CA-MU for increased memory. Cross-family migration to SAM4L or SAM4E requires schematic redesign due to different peripheral sets and pin configurations.