ATSAM3N4CA-CU

Overview

The ATSAM3N4CA-CU is a 32-bit microcontroller based on the ARM Cortex-M3 core, belonging to the SAM3N series. It features 256 kB of in-system programmable Flash memory and 24 kB of SRAM. The device operates at a maximum clock frequency of 48 MHz and provides 79 general-purpose I/O pins. It supports multiple communication interfaces including SPI, UART, USART, I2C, and IrDA. The component is housed in a 100-TFBGA package with dimensions of 9x9 mm. It functions within a supply voltage range of 1.62 V to 3.6 V and an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M3 processor core for efficient 32-bit execution.
• Includes substantial non-volatile program storage via 256 kB Flash memory.
• Supports diverse serial communication protocols such as SPI, UART, and I2C.
• Offers extensive peripheral connectivity with 79 available I/O lines.

Applications

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

Procurement Notes

Verify the specific package type and pinout configuration against your PCB design requirements before integration. Confirm that the selected variant meets all environmental and electrical specifications for your intended application environment. Check current availability status as distribution channels may vary. Ensure compliance with relevant regulatory standards for your target market.

Selection Notes

Choose this component when a balance of processing power and peripheral count is required in a compact form factor. The 48 MHz speed suits moderate complexity tasks without excessive power consumption. Consider the TFBGA package constraints during layout planning. Evaluate if the 256 kB Flash capacity aligns with firmware size projections.

Part Context

This part belongs to the Microchip SAM3N family, designed for cost-sensitive applications requiring ARM Cortex-M3 performance. It shares architectural similarities with other SAM3N variants but differs in memory size and package options. The series targets embedded markets where reliability and standard interface compatibility are prioritized over high-speed computing.

Replacement Considerations

ATSAM3N4BA-AU offers similar functionality in a different package option.