ATSAM4N8CA-CFU

Overview

The ATSAM4N8CA-CFU is a 32-bit microcontroller from the Microchip SAM4N series, featuring an ARM Cortex-M4 core operating at a maximum frequency of 100 MHz. It integrates 512 kB of Flash memory and 64 kB of SRAM within a 100-pin VFBGA package. The device supports a supply voltage range of 1.62 V to 3.6 V and includes multiple communication interfaces such as I2C, SPI, and UART. It offers 9-channel 10-bit ADCs and six timer/counters, designed for industrial temperature applications.

Feature Summary

• Integrates an ARM Cortex-M4 processor core with hardware floating-point unit support for efficient digital signal processing.
• Provides extensive connectivity through integrated peripherals including USB OTG, CAN, and standard serial interfaces.
• Includes built-in security features such as readout protection and secure debug access to protect intellectual property.

Applications

• Industrial control systems requiring robust data acquisition
• Consumer electronics with USB connectivity requirements
• Automotive body electronics and instrumentation

Procurement Notes

Verify the specific suffix 'CFU' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 100-VFBGA configuration. Check for moisture sensitivity level (MSL) ratings to determine proper storage and reflow soldering profiles during assembly.

Selection Notes

Select this component when a balance of processing power and peripheral richness is needed in a compact form factor. Compare against the SAM4S series if higher clock speeds or larger memory capacities are required. Consider the SAM4L series if ultra-low power consumption in standby modes is a primary design constraint over raw performance.

Part Context

This part belongs to the SAM4N family, which targets cost-sensitive applications requiring moderate performance. It shares architectural similarities with other SAM4 variants but distinguishes itself through its specific memory map and peripheral set optimized for general-purpose embedded control tasks within the Microchip portfolio.

Replacement Considerations

Consult official cross-reference guides for pin-compatible alternatives within the SAM4N series. Verify that any substitute maintains identical Flash size, RAM capacity, and package dimensions to ensure mechanical fit without redesign.