ATSAM3S8BA-MUR

Overview

The ATSAM3S8BA-MUR is a 32-bit microcontroller from the Microchip SAM3S series, featuring an ARM Cortex-M3 core. It integrates 512 kB of Flash program memory and 64 kB of SRAM data RAM. The device operates with a maximum clock frequency of 64 MHz and supports a supply voltage range of 1.62 V to 3.6 V. It includes a 12-bit ADC with 15 channels and provides 79 general-purpose I/O pins. Connectivity options include USB, SPI, I2C, UART/USART, SSC, and EBI/EMI interfaces. The component is housed in a 100-LQFP package and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates high-capacity 512 kB Flash memory and 64 kB SRAM for complex application execution.
• Supports multiple communication protocols including USB, SPI, I2C, and USART for versatile system connectivity.
• Features a 12-bit analog-to-digital converter with 15 input channels for precise signal acquisition.

Applications

• Industrial control systems requiring robust processing and multiple interface options
• Consumer electronics utilizing USB connectivity and analog sensor inputs
• Embedded applications needing reliable operation within industrial temperature ranges

Procurement Notes

Verify the specific suffix 'MUR' against official Microchip documentation to confirm the tape-and-reel packaging configuration and any associated handling requirements. Ensure compatibility with existing PCB footprints for the 100-LQFP package. Cross-reference the full part number with current datasheets to validate voltage ranges and temperature specifications before finalizing procurement orders.

Selection Notes

Select this component when a balance of high memory capacity and extensive peripheral connectivity is required within a compact form factor. The 100-pin LQFP package offers significant I/O availability compared to smaller packages in the same series. Consider the 64 MHz performance limit and 3.3 V I/O levels when designing system architecture and power management strategies.

Part Context

This part belongs to the SAM3S family of 32-bit Flash MCUs based on the ARM Cortex-M3 processor. The family is designed for cost-sensitive applications demanding efficient code execution and rich peripheral sets. The ATSAM3S8 variant specifically targets applications requiring larger memory spaces than lower-tier models while maintaining low power consumption characteristics typical of the series.

Replacement Considerations

Compatible alternatives within the same package and pinout include ATSAM3S8CA-AU and ATSAM3S8CA-AUR. Verify that substitute parts match the specific memory size, package type, and electrical specifications required by the design.