ATSAM4N8BA-MU

Overview

The ATSAM4N8BA-MU is a 32-bit ARM Cortex-M4 microcontroller from Microchip Technology's SAM4N series. It operates at a maximum clock frequency of 100 MHz and integrates 512 kB of Flash program memory with 64 kB of SRAM data RAM. The device features 47 general-purpose I/O pins and supports multiple communication interfaces including I2C, SPI, and UART. It includes a 10-bit ADC with 10 channels and six timer/counters. The unit functions within a supply voltage range of 1.62 V to 3.6 V and is rated for industrial temperatures between -40°C and +85°C. It is housed in a 64-pin QFN package.

Feature Summary

• Integrates an ARM Cortex-M4 processor core with hardware floating-point support for efficient digital signal processing.
• Provides non-volatile flash memory for code storage alongside static RAM for rapid data access during execution.
• Supports standard serial communication protocols for interfacing with peripheral devices and sensors.
• Includes analog-to-digital conversion capabilities for monitoring external analog signals.

Applications

• Industrial control systems requiring robust processing and reliable communication
• Consumer electronics utilizing low-power embedded controllers
• Medical instrumentation involving sensor data acquisition
• Automotive subsystems operating under strict environmental conditions

Procurement Notes

Verify the specific suffix 'MU' indicates the 64-QFN package variant when sourcing components. Confirm that the ordering information matches the required pin configuration and thermal characteristics. Ensure compatibility with existing PCB footprints designed for the QFN-64 form factor. Check for moisture sensitivity levels if the component has been stored for extended periods prior to assembly.

Selection Notes

Select this model when a balance of processing power and memory capacity is required for complex firmware applications. The 100 MHz speed suits tasks involving real-time data handling and protocol management. Consider the 64-pin interface density for designs needing numerous connections without increasing board space. Evaluate the power consumption profiles against battery-operated constraints if applicable.

Part Context

This component belongs to the SAM4N family, which targets cost-sensitive applications demanding high performance. The series utilizes the Cortex-M4 architecture to deliver computational efficiency. It serves as a bridge between basic 8/16-bit controllers and higher-end processors. The design emphasizes integration of essential peripherals to reduce external component count.

Replacement Considerations

Cross-reference with other SAM4N variants such as ATSAM4N8A or ATSAM4N16 for differences in memory size. Verify pin compatibility with ATSAM4S series parts, noting potential differences in peripheral availability and clock speeds. Ensure substitute components maintain the same package dimensions and electrical specifications.