ATSAM4S16CA-CFUR

Overview

The ATSAM4S16CA-CFUR is a Microchip Technology microcontroller from the SAM4S series, featuring an ARM Cortex-M4 core. It integrates 1 MB of embedded Flash memory and 128 kB of SRAM. The device operates at a maximum clock frequency of 120 MHz with a 32-bit data bus width. It utilizes a 100-VFBGA package (7x7 mm) and supports industrial temperature ranges from -40°C to +105°C. Key peripherals include USB 2.0, multiple USARTs, SPI, I2C, and a 12-bit ADC.

Feature Summary

• Integrates ARM Cortex-M4 processor with DSP instruction set and Memory Protection Unit
• Supports single-supply operation via embedded voltage regulator
• Includes comprehensive connectivity interfaces such as USB 2.0, SSC, and IrDA
• Features low-power modes including Sleep and Backup for energy efficiency

Applications

• Industrial control systems requiring robust processing
• Smart metering applications with security features
• Consumer electronics utilizing USB connectivity
• Medical devices needing precise analog-to-digital conversion

Procurement Notes

Verify the suffix CFUR indicates tape-and-reel packaging distinct from tray variants. Confirm the specific temperature grade and package dimensions match design requirements. Check for recent Product Change Notifications regarding assembly sites or labeling changes. Ensure compatibility with existing PCB footprints for the 100-VFBGA form factor before finalizing procurement.

Selection Notes

Select this component when 1 MB Flash and 120 MHz performance are required in a compact VFBGA package. Compare against ATSAM4S16CA-CFU if reel packaging is not needed. Consider ATSAM4SD16CB-CN for dual-bank Flash options. Evaluate power consumption profiles against application needs, particularly in backup mode. Verify peripheral availability matches interface requirements.

Part Context

This part belongs to the SAM4S family, designed for cost-sensitive applications compared to the SAM4C series. It shares pin compatibility with SAM3N and SAM3S products. The series targets general-purpose MCU needs with integrated security and connectivity. It serves as a bridge between legacy SAM7S designs and modern Cortex-M4 requirements.

Replacement Considerations

ATSAM4S16CA-CFU offers identical electrical specifications but uses tray packaging instead of tape-and-reel. ATSAM4SA16CA-CFU provides similar performance in the same package type; verify suffix differences for minor revisions. Cross-reference datasheets for any errata updates affecting peripheral behavior.