ATSAM3N0BA-MU

Overview

The ATSAM3N0BA-MU is an ARM Cortex-M3 microcontroller from the SAM3N series, manufactured by Microchip Technology. It features a 32-bit data bus and operates at a maximum clock frequency of 48 MHz. The device includes 32 kB of program memory (Flash) and 8 kB of SRAM data RAM. It provides 47 general-purpose I/O pins and supports interfaces such as SPI and UART. The unit is housed in a QFN-64 package with SMD/SMT mounting style. Operating voltage ranges from 1.8 V to 3.6 V, and it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 core for efficient 32-bit processing.
• Includes on-chip Flash memory for code storage and SRAM for data handling.
• Supports standard communication protocols including SPI and UART.

Applications

• Industrial automation systems
• Smart grid applications
• Medical equipment controllers

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and check for moisture sensitivity labeling prior to soldering. Ensure the specific suffix matches the required package variant. Review datasheet revisions for any pinout or electrical characteristic updates before finalizing procurement orders.

Selection Notes

Select this model when a low-pin-count MCU with moderate Flash capacity is required. Compare against other SAM3N variants if higher memory density or additional peripheral interfaces are needed. Verify that the QFN-64 package fits the PCB footprint constraints. Ensure the 48 MHz speed meets the application's real-time processing requirements.

Part Context

This component belongs to the Microchip SAM3N family of ARM Cortex-M3 microcontrollers. These devices are designed for cost-sensitive applications requiring high performance and low power consumption. The family offers various memory options and connectivity features suitable for embedded control tasks.

Replacement Considerations

Consult official substitution lists for compatible parts within the SAM3N series. Verify pin compatibility and memory specifications before replacing. No direct public substitute part numbers are confirmed in the provided documentation.