ATSAM4S2BA-MU

Overview

The ATSAM4S2BA-MU is a 32-bit microcontroller from the SAM4S series, manufactured by Microchip Technology. It integrates an ARM Cortex-M4 core operating at a maximum frequency of 120 MHz. The device provides 128 KB of Flash program memory and 64 KB of SRAM data memory. It features a 12-bit Analog-to-Digital Converter with 11 channels. Connectivity options include USB Full-Speed Device Port, SPI, I2C, USART, SSC, IrDA, and SD/MMC interfaces. The unit is housed in a 64-pin QFN package and supports an industrial temperature range.

Feature Summary

• Integrates ARM Cortex-M4 processor with hardware floating-point unit for efficient digital signal processing.
• Includes dual-bank Flash memory implementation with cache control to optimize instruction fetch performance.
• Features a comprehensive peripheral set including multiple communication interfaces and DMA controllers.
• Supports low-power operation modes suitable for battery-powered embedded applications.

Applications

• Industrial automation controllers requiring robust real-time processing capabilities.
• Consumer electronics devices utilizing USB connectivity for data transfer or charging.
• Medical equipment needing precise analog signal acquisition via high-resolution ADCs.
• Smart metering systems requiring secure data handling and reliable communication protocols.

Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 64-QFN configuration. Check for any recent Product Change Notifications regarding assembly sites or marking changes. Confirm that the selected variant meets all environmental and regulatory requirements for the intended deployment region.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required within a compact form factor. Compare against the ATSAM4LS series if lower power consumption is prioritized over clock speed. Evaluate the ATSAM4S4B series if larger memory capacity is necessary for complex firmware implementations. Consider pinout compatibility with existing designs using similar SAM4S variants.

Part Context

This microcontroller belongs to the SAM4S family, designed for high-performance applications. It shares architectural similarities with other SAM4S parts but differs in memory size and package options. The series is widely used in industries demanding reliable ARM-based control solutions. Development tools such as Atmel Studio support programming and debugging for this specific model.

FAQ

Does the ATSAM4S2BA-MU support hardware floating-point operations?

Yes, the integrated ARM Cortex-M4 core includes a single-precision hardware floating-point unit to accelerate mathematical computations.

What is the maximum operating frequency of this microcontroller?

The device operates at a maximum clock frequency of 120 MHz when supplied with the appropriate voltage levels.