ATSAM3S1BB-MUR

Overview

The ATSAM3S1BB-MUR is a 32-bit microcontroller from the Microchip SAM3S series, built on the ARM Cortex-M3 core. It features 64 kB of Flash memory and 16 kB of SRAM. The device operates at a maximum clock frequency of 64 MHz with a supply voltage range of 1.62 V to 3.6 V. It includes an internal RC oscillator, USB Full-Speed Device interface, multiple communication peripherals including SPI, UART, and I2C, and supports industrial temperature ranges in a QFN-48 package.

Feature Summary

• Integrates an ARM Cortex-M3 processor running up to 64 MHz for high-performance code execution.
• Includes embedded Flash and SRAM memories with a dedicated ROM containing bootloader routines.
• Provides versatile connectivity through integrated USB, SPI, UART, and I2C interfaces.
• Features system protection mechanisms such as Power-on Reset and Brown-out Detector.

Applications

• Industrial control systems requiring robust peripheral integration
• Consumer electronics utilizing low-power ARM architectures
• Metering applications needing precise timing and analog interfaces

Procurement Notes

Verify the specific suffix 'MUR' indicates the reel packaging format and industrial temperature grade. Confirm RoHS compliance status via the official datasheet before procurement. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference pinouts with existing designs to ensure compatibility with the QFN-48 footprint.

Selection Notes

Select this component when a balance of moderate memory capacity and rich peripheral sets is required. It serves as a direct upgrade path from legacy AT91SAM7S devices due to pin compatibility. Consider the 64 MHz speed and USB capabilities for applications demanding efficient data transfer without external controllers.

Part Context

This part belongs to the SAM3S family, which bridges the gap between high-end and entry-level ARM microcontrollers. It shares architectural similarities with the SAM3A and SAM3N series but offers distinct peripheral configurations tailored for cost-sensitive yet feature-rich embedded applications.

Replacement Considerations

The ATSAM3S1BA is a pin-compatible alternative within the same series. Verify if the specific memory size or package variant of the substitute meets the design requirements.