ATSAM3S1CB-CU

Overview

The ATSAM3S1CB-CU is a 32-bit microcontroller from the Microchip SAM3S series, built on the ARM Cortex-M3 core. It features 64 KB of in-system programmable 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 1.9 V. It includes 79 general-purpose I/Os, 15 ADC channels (12-bit resolution), and multiple communication interfaces including USB, SPI, UART, USART, I2C, and I2S. Packaged in a 100-pin TFBGA, it supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M3 processor for efficient code execution.
• Provides extensive connectivity through integrated USB, Ethernet-capable interfaces, and standard serial protocols.
• Includes analog peripherals such as a 12-bit ADC with multiple channels and a DAC for signal processing.
• Supports low-power operation modes suitable for battery-powered embedded applications.

Applications

• Industrial control systems requiring robust communication interfaces
• Consumer electronics utilizing USB connectivity
• Medical devices needing precise analog-to-digital conversion
• Smart home automation controllers

Procurement Notes

Verify the specific suffix 'CU' corresponds to the 100-TFBGA package and industrial temperature grade (-40°C to +85°C) before ordering. Confirm that the 1.62V to 1.9V supply voltage requirement aligns with your system design, as this variant differs from wider voltage options in the SAM3S family. Check for RoHS compliance status via official datasheets.

Selection Notes

Select this component when 64 KB of Flash and 16 KB of RAM are sufficient for application logic. The 100-pin TFBGA package is ideal for space-constrained designs requiring high I/O density. Ensure the 64 MHz speed meets real-time processing needs. Compare against other SAM3S variants if higher memory or different voltage ranges are required.

Part Context

This part belongs to the SAM3S family of 32-bit Flash microcontrollers based on the ARM Cortex-M3 architecture. The series is designed for cost-sensitive applications requiring moderate performance and rich peripheral sets. The ATSAM3S1CB-CU represents a specific configuration within this lineup, balancing memory size and pin count for versatile embedded use cases.

Replacement Considerations

Direct substitutes include other ATSAM3S1CB variants with different packages (e.g., ATSAM3S1CB-AU for QFP). Cross-series upgrades like ATSAM3S4BA offer more memory but require software adaptation. Verify pin compatibility and voltage levels when considering alternatives.