ATSAM3S4AA-MUR

Overview

The ATSAM3S4AA-MUR is an ARM microcontroller from the SAM3S series, featuring a 32-bit ARM Cortex-M3 core operating at a maximum clock frequency of 64 MHz. It integrates 256 kB of Flash program memory and 48 kB of SRAM data RAM. The device supports a supply voltage range of 1.62 V to 3.6 V and includes an internal oscillator. It offers 34 general-purpose I/O pins and provides multiple communication interfaces including SPI, UART, and I2C. The component is housed in a QFN-48 package and is rated for an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M3 processor with up to 64 MHz execution speed.
• Provides substantial non-volatile storage with 256 kB of Flash memory and 48 kB of static RAM.
• Supports versatile peripheral connectivity through integrated SPI, UART, and I2C interfaces.
• Operates reliably within a wide industrial temperature range using a single low-voltage power supply.

Applications

• Industrial control systems requiring robust processing capabilities
• Consumer electronics devices utilizing ARM-based architectures
• Embedded applications needing efficient code execution and moderate memory capacity

Procurement Notes

Verify the specific suffix 'MUR' corresponds to the tape and reel packaging configuration rather than tray packaging when sourcing components. Confirm that the manufacturer designation Microchip Technology aligns with current product line ownership following historical acquisitions. Ensure compatibility with standard surface-mount assembly processes for QFN-48 packages during procurement planning.

Selection Notes

Select this component when a balance between processing power and memory size is required for cost-sensitive embedded designs. The 64 MHz Cortex-M3 core suits applications needing faster execution than lower-end MCUs but without the complexity of higher-performance families. Verify that the 34 available I/O pins meet the interface requirements of the target system design before finalizing the selection.

Part Context

This part belongs to the SAM3S family of microcontrollers, which are designed for applications demanding high performance and low power consumption. The series utilizes the ARM Cortex-M3 architecture to provide efficient code execution. The ATSAM3S4AA variant specifically denotes the 256 kB Flash memory configuration within this lineup, distinguishing it from smaller or larger memory options available in the same family.

FAQ

What is the maximum operating frequency of the ATSAM3S4AA-MUR?

The maximum clock frequency for this microcontroller is 64 MHz.

Does the ATSAM3S4AA-MUR include USB connectivity?

No, the datasheet specifications for this specific part number do not list USB as an included interface; it primarily features SPI, UART, and I2C.