ATSAM3N0BA-AU

Overview

The ATSAM3N0BA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 48 MHz. It features 32 KB of flash memory and 8 KB of RAM. The device includes an internal oscillator and supports supply voltages from 1.62 V to 3.6 V. It integrates eight 10-bit ADC channels and offers multiple communication interfaces including I2C, IrDA, SPI, and UART/USART. The component provides 47 general-purpose I/O pins and is housed in a 64-LQFP package with an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient code execution
• Includes built-in analog-to-digital conversion capabilities with multiple channels
• Supports standard serial communication protocols for peripheral connectivity
• Features internal clock generation without requiring external oscillators

Applications

• Industrial control systems requiring robust processing
• Consumer electronics devices with low power constraints
• Embedded sensor interface modules
• General-purpose automation controllers

Procurement Notes

Verify the specific suffix and package variant against the official Microchip datasheet to ensure compatibility with design requirements. Confirm that the procurement channel sources genuine components directly from authorized distributors or the manufacturer to avoid counterfeit risks. Check current lifecycle status as availability may vary by region and production cycle.

Selection Notes

Select this model when a balance of moderate memory capacity and rich peripheral integration is required within a compact footprint. Consider the 48 MHz performance limit and 32 KB storage size relative to application complexity. Evaluate the 64-pin LQFP package dimensions against PCB space constraints and thermal management needs for the target environment.

Part Context

This component belongs to the SAM3N series of microcontrollers designed for cost-sensitive applications. It shares architectural similarities with other members of the family but differs in memory size and pin count. The series targets embedded markets needing reliable ARM-based processing with integrated peripherals for direct system control tasks.

Replacement Considerations

Consult the official SAM3N series cross-reference documentation for verified substitutes. Potential alternatives include other variants within the same series with adjusted memory or package configurations. Ensure any replacement maintains compatible pinout and electrical specifications.