ATSAM3S4CA-CU

Overview

The ATSAM3S4CA-CU is a 32-bit microcontroller from the Microchip SAM3S series, featuring an ARM Cortex-M3 core. It integrates 256KB of flash memory and 48KB of SRAM. The device operates at a maximum clock frequency of 64MHz with a supply voltage range of 1.62V to 3.6V. It utilizes a 100-pin TFBGA package and supports interfaces including USB, SPI, I2C, USART, SSC, EBI/EMI, SD/MMC, and I2S.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M3 processor with single-cycle multiplication and hardware division.
• Includes a comprehensive set of peripherals such as DMA controllers, multiple timers, and analog-to-digital converters.
• Supports flexible connectivity through integrated USB OTG, Ethernet MAC, and various serial communication protocols.
• Features low-power management capabilities with multiple sleep modes and wake-up sources for energy efficiency.

Applications

• Industrial control systems requiring robust processing and connectivity
• Consumer electronics utilizing USB or display interfaces
• Medical devices needing precise analog signal acquisition
• Smart metering applications with secure data handling

Procurement Notes

Verify the specific suffix 'CU' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 100-TFBGA configuration. Cross-reference RoHS compliance status with current manufacturer declarations before finalizing procurement orders.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required within a compact form factor. The 256KB flash capacity suits complex firmware implementations. Consider the 64MHz speed limit against higher-performance alternatives if real-time constraints are critical. Evaluate pin count requirements against the available GPIOs in the 100-pin package.

Part Context

This part belongs to the SAM3S family, designed for cost-sensitive applications demanding ARM Cortex-M3 performance. It shares architectural similarities with other SAM3 variants but offers specific memory and interface configurations tailored for embedded control tasks. The series emphasizes ease of development through compatible software frameworks.

FAQ

What is the maximum operating frequency of the ATSAM3S4CA-CU?

The maximum operating frequency is 64 MHz.

Does this microcontroller support USB On-The-Go?

Yes, it includes a USB OTG controller with a full-speed PHY.