ATSAM3N0BA-AUR

Overview

The ATSAM3N0BA-AUR is a 32-bit microcontroller from the Microchip SAM3N series, featuring an ARM Cortex-M3 core operating at up to 48MHz. It integrates 64KB of embedded Flash memory and 16KB of SRAM within a 48-LQFP package. The device supports a supply voltage range of 1.62V to 3.6V and includes eight 10-bit ADC channels. Connectivity options include I2C, IrDA, SPI, and UART/USART interfaces, while peripherals encompass DMA, PWM, and watchdog timers.

Feature Summary

• Integrates an ARM Cortex-M3 processor with Thumb-2 instruction set support for efficient code execution.
• Provides embedded non-volatile Flash memory with 128-bit wide access and memory accelerator capabilities.
• Includes built-in power management features such as Power-on-Reset (POR) and Brown-out Detection (BOD).
• Supports multiple communication protocols including I2C, SPI, and USART for versatile peripheral interfacing.

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power ARM-based processing
• Embedded applications needing secure boot and data storage

Procurement Notes

Verify the specific suffix 'AUR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets current RoHS and REACH environmental compliance standards mandated by the target market. Ensure the ordering quantity aligns with the manufacturer's standard reel specifications to avoid handling discrepancies during production.

Selection Notes

Select this component when a balance of moderate program memory and extensive GPIO availability is required in a compact footprint. The 48-pin LQFP package offers sufficient pin count for diverse interface needs without increasing board space significantly. Consider the internal oscillator accuracy and temperature range if external clock sources are not utilized in the design.

Part Context

This microcontroller belongs to the SAM3N family, designed for cost-sensitive applications requiring ARM Cortex-M3 performance. It serves as a bridge between legacy 8/16-bit architectures and higher-end 32-bit solutions, offering pin-to-pin compatibility with older SAM7S devices in certain configurations.

Replacement Considerations

Consult official Microchip documentation for verified cross-reference part numbers. Substitutions must match the core architecture, memory size, and package dimensions to ensure functional equivalence.