ATSAM3N1CB-CU

Overview

The ATSAM3N1CB-CU is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N family. It features 64 kB of Flash program memory and 8 kB of SRAM data RAM. The device operates with a maximum clock frequency of 48 MHz and supports a supply voltage range of 1.62 V to 3.6 V. It provides 79 general-purpose I/O pins and includes an 8-channel, 10-bit ADC. Connectivity options include I2C, SPI, UART/USART, and IrDA interfaces. The component is housed in a 100-LQFP package and is rated for industrial temperature operation from -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit code execution.
• Includes built-in DMA controller and multiple peripheral interfaces for system integration.
• Supports low-power modes including sleep, wait, and stop modes for energy management.

Applications

• Industrial control systems requiring robust communication interfaces
• Consumer electronics utilizing low-voltage power supplies
• Embedded applications needing moderate flash storage and GPIO density

Procurement Notes

Verify the specific suffix 'CU' against the manufacturer's current datasheet to confirm the package type and temperature grade. Ensure that the ordering information matches the exact pin count and memory configuration required for the design. Cross-reference the RoHS compliance status and humidity sensitivity level before finalizing procurement plans.

Selection Notes

Select this component when a balance of processing speed and peripheral availability is needed within a compact LQFP footprint. Compare against other SAM3N variants if higher memory capacity or different interface requirements are necessary. Consider the 48 MHz operating speed relative to application latency needs and verify compatibility with existing 3.3V logic levels.

Part Context

This part belongs to the Microchip SAM3N series, designed for cost-sensitive embedded applications. It shares architectural similarities with other SAM3 devices but offers a specific combination of memory size and I/O count suitable for mid-range control tasks. The series emphasizes low power consumption and ease of integration into various electronic systems.

FAQ

What is the maximum operating frequency of the ATSAM3N1CB-CU?

The maximum clock frequency is 48 MHz.

Does the ATSAM3N1CB-CU support USB connectivity?

No, the ATSAM3N1CB-CU does not include a USB interface; it supports I2C, SPI, UART/USART, and IrDA.