ATSAM3N1CB-AUR

Overview

The ATSAM3N1CB-AUR is a 32-bit microcontroller from the Microchip SAM3N series, featuring an ARM Cortex-M3 core operating at up to 48 MHz. It integrates 64 KB of embedded Flash memory and 8 KB of SRAM within a 100-LQFP package. The device supports a supply voltage range of 1.62 V to 3.6 V and includes an internal oscillator. Peripheral interfaces include I2C, IrDA, SPI, and UART/USART. Additional features comprise DMA, PWM, watchdog timer, power-on reset, and brown-out detection.

Feature Summary

• Integrates ARM Cortex-M3 processor with Thumb-2 instruction set support
• Includes embedded Flash and SRAM with memory accelerator for efficient code execution
• Supports multiple communication protocols including SPI, I2C, and USART
• Provides hardware peripherals such as DMA controller and PWM generators

Applications

• Industrial control systems requiring robust peripheral connectivity
• Consumer electronics utilizing low-voltage operation
• Embedded applications needing DMA-driven data transfers
• Motor control implementations using PWM outputs

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding pin count and thermal performance. Cross-reference datasheet revisions to validate electrical characteristics and interface availability before finalizing procurement specifications.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required in a compact form factor. The 100-pin LQFP package offers extensive I/O options suitable for complex system integration. Consider the 48 MHz clock speed and available memory sizes relative to application software requirements and real-time processing demands.

Part Context

This part 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. The series emphasizes pin-to-pin compatibility with previous generations to facilitate migration paths for existing designs.

Replacement Considerations

Consult official Microchip documentation for verified substitute part numbers. Ensure any replacement maintains identical pinout, memory capacity, and peripheral functionality to avoid redesign efforts.