ATSAM4S16BA-MUR

Overview

The ATSAM4S16BA-MUR is an ARM microcontroller from the SAM4S series, featuring a Cortex-M4 core with single-precision floating-point unit. It integrates 1 MB of Flash memory and 128 KB of SRAM within a 64-pin LQFP package. The device supports a maximum clock frequency of 120 MHz and operates on a 32-bit data bus. Key peripherals include multiple communication interfaces such as USB, SPI, I2C, UART, and USART, alongside a 12-bit ADC.

Feature Summary

• Integrates a high-performance ARM Cortex-M4 processor core with hardware floating-point acceleration for efficient signal processing.
• Provides extensive connectivity through integrated USB device controllers, multiple serial peripheral interfaces, and universal asynchronous receiver-transmitters.
• Features robust security mechanisms including secure boot capabilities and cryptographic accelerators to protect embedded applications.

Applications

• Industrial control systems requiring reliable real-time processing
• Smart metering devices needing secure data handling
• Consumer electronics utilizing USB connectivity

Procurement Notes

Verify the specific suffix 'MUR' against the official Microchip datasheet to confirm tape-and-reel packaging and industrial temperature range specifications. Ensure compatibility with existing PCB footprints for the LQFP-64 package. Cross-reference the exact part number with current production status notices to avoid obsolescence risks during procurement.

Selection Notes

Select this component when a balance of moderate memory capacity and advanced peripheral integration is required. The Cortex-M4 core offers superior performance over Cortex-M3 alternatives while maintaining low power consumption. Consider the 120 MHz operating speed and available GPIO count for complex interface requirements in compact form factors.

Part Context

This microcontroller belongs to the SAM4S family, designed for cost-sensitive applications demanding ARM Cortex-M4 performance. It bridges the gap between entry-level MCUs and high-end processors by offering significant flash storage and rich peripheral sets in a standard 64-pin package suitable for mass production.

Replacement Considerations

Consult the SAM4S family cross-reference guide for pin-compatible alternatives. Verify that substitute parts maintain identical Flash/SRAM sizes and peripheral configurations to ensure software compatibility without hardware redesign.