ATSAM3N1BB-MUR

Overview

The ATSAM3N1BB-MUR is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 48 MHz. It features 64 KB of in-system programmable Flash memory and 8 KB of SRAM. The device operates within a supply voltage range of 1.62 V to 3.6 V and supports an industrial temperature range of -40°C to +85°C. It includes multiple communication interfaces such as SPI, I2C, USART, and IrDA, along with DMA capabilities.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient code execution.
• Provides non-volatile program storage via in-system programmable Flash memory.
• Supports high-speed synchronous serial communication protocols including SPI and I2C.
• Includes Direct Memory Access (DMA) controller to reduce CPU overhead.

Applications

• Industrial control systems requiring robust processing
• Consumer electronics utilizing low-power ARM architectures
• Embedded applications needing multiple serial communication interfaces

Procurement Notes

Verify the specific suffix 'MUR' indicates the reel packaging format when ordering. Confirm that the component meets RoHS compliance requirements for your region. Ensure the industrial temperature grade aligns with your environmental specifications. Cross-reference the datasheet revision to confirm pinout and electrical characteristics match your design intent before finalizing procurement.

Selection Notes

Select this component when a balance of moderate Flash capacity and low power consumption is required. The 48 MHz speed suits applications not demanding high-performance computing. Consider the QFN package constraints for thermal management and PCB layout. Verify that the available GPIO count meets the interface requirements of the target system design.

Part Context

This part belongs to the Microchip SAM3N series, which targets cost-sensitive embedded applications. The series utilizes the ARM Cortex-M3 architecture to provide a scalable solution for various microcontroller needs. The ATSAM3N1 variant specifically offers 64 KB of Flash, positioning it between lower-capacity and higher-capacity models in the family.

Replacement Considerations

The ATSAM3N1BB-MU is a tray-packaged equivalent with identical electrical specifications. Check if the 'R' suffix strictly denotes the reel packaging configuration without altering functional parameters. Ensure any substitute maintains the same QFN-64 footprint and pin assignment.