ATSAM4S2AB-MN

Overview

The ATSAM4S2AB-MN is a 32-bit microcontroller based on the ARM Cortex-M4 core, part of the Microchip SAM4S series. It integrates 128KB of in-system programmable Flash memory and 64KB of SRAM. The device operates at a maximum clock frequency of 120MHz and supports an operating voltage range of 1.62V to 3.6V. It features 34 general-purpose I/O lines and includes multiple communication interfaces such as SPI, USART, I2C, and USB Device/OTG. The component is housed in a 48-pin QFN package with dimensions of 7mm x 7mm.

Feature Summary

• Integrates an ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
• Includes comprehensive connectivity peripherals supporting USB OTG, multiple serial communication protocols, and SD/MMC card interfaces.
• Features integrated analog-to-digital converters and pulse width modulation channels for sensor interfacing and motor control applications.

Applications

• Portable consumer electronics requiring low power consumption and high performance
• Industrial control systems utilizing serial communication and analog input capabilities
• USB-enabled devices including human interface devices and mass storage implementations

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing board layouts regarding the 48-QFN footprint. Confirm supply chain authenticity through authorized distributors to avoid counterfeit components. Check for any recent product change notices affecting assembly or marking specifications.

Selection Notes

Select this model when a balance of moderate memory capacity and rich peripheral set is required within a compact form factor. Compare against other SAM4S variants if higher pin counts or larger memory sizes are needed. Consider the 120MHz speed limit relative to application processing demands. Evaluate power consumption profiles across different operating modes for battery-powered designs.

Part Context

This component belongs to the SAM4S family of 32-bit microcontrollers designed for cost-sensitive applications. It shares architectural similarities with the SAM4L and SAM4E series but offers distinct peripheral configurations. The SAM4S line targets markets needing robust connectivity and processing power without the complexity of higher-end SoCs.

FAQ

Does the ATSAM4S2AB-MN support USB On-The-Go functionality?

Yes, the device includes a USB Device/OTG controller capable of operating in both device and host modes.

What is the maximum operating frequency of the CPU core?

The ARM Cortex-M4 core can operate at a maximum frequency of 120MHz.