ATSAM3N00BA-AU

Overview

The ATSAM3N00BA-AU is a 32-bit microcontroller based on the ARM Cortex-M3 core, operating at a maximum frequency of 48MHz. It features 16KB of in-system programmable flash memory and 4KB of SRAM. The device includes an 8-channel 10-bit analog-to-digital converter and supports multiple communication interfaces including I2C, SPI, UART/USART, and IrDA. Powered by a supply voltage ranging from 1.62V to 3.6V, it operates within a temperature range of -40°C to +85°C and is housed in a 64-LQFP package.

Feature Summary

• Integrates an ARM Cortex-M3 processor with hardware multiply and divide instructions for efficient code execution.
• Provides flexible connectivity through standard serial interfaces such as SPI, I2C, and USART alongside IrDA support.
• Includes built-in analog peripherals featuring an 8-channel ADC for signal acquisition.

Applications

• Industrial control systems requiring low power consumption
• Consumer electronics utilizing serial communication protocols
• Embedded sensor nodes with analog input requirements

Procurement Notes

Verify the complete part number against official Microchip documentation to ensure correct package type and temperature grade. Confirm that the specific suffix matches the required manufacturing revision. Cross-reference datasheet revisions to validate interface availability and electrical characteristics prior to integration into design specifications.

Selection Notes

Select this component when a balance of moderate program storage and essential serial interfaces is required. The 48MHz speed suits applications not demanding high-performance processing. Ensure the 64-pin LQFP footprint fits the board layout constraints. Verify that the 1.62V to 3.6V supply range aligns with the system power architecture.

Part Context

This unit belongs to the SAM3N series, designed for cost-sensitive embedded applications. It shares the Cortex-M3 core architecture with other members but offers reduced memory and pin counts compared to higher-end variants like the SAM3S or SAM3X families. The series targets general-purpose microcontroller needs.

FAQ

Does the ATSAM3N00BA-AU include a digital-to-analog converter?

Yes, the datasheet specifies one 10-bit DAC channel in addition to the eight 10-bit ADC channels.

What is the maximum clock frequency for this microcontroller?

The internal oscillator supports a maximum operating frequency of 48MHz.