ATSAM4S16BA-UUR

Overview

The ATSAM4S16BA-UUR is a 32-bit microcontroller from the SAM4S series, manufactured by Microchip Technology. It integrates an ARM Cortex-M4 core operating at up to 120 MHz with 1 MB of embedded Flash memory and 128 KB of SRAM. The device features a 64-pin LQFP package and supports supply voltages between 1.62 V and 3.6 V. Key peripherals include USB 2.0 Device, multiple USARTs, SPI, I2C, and a 12-bit ADC. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with DSP instructions and Memory Protection Unit (MPU).
• Includes high-speed USB 2.0 Device interface with on-chip transceiver.
• Features comprehensive connectivity options including USART, SPI, I2C, and IrDA.
• Supports low-power operation with sleep and backup modes.

Applications

• Industrial control systems requiring robust processing and communication interfaces.
• Consumer electronics utilizing USB connectivity for data transfer or charging.
• Medical devices needing precise analog-to-digital conversion capabilities.
• Automotive applications compatible with standard automotive temperature ranges.

Procurement Notes

Verify the specific suffix 'UUR' against official Microchip documentation to confirm tape-and-reel packaging and moisture sensitivity level. Ensure compatibility with existing PCB footprints for the 64-LQFP package. Check for any recent Product Change Notifications regarding assembly sites or material composition changes before finalizing procurement plans.

Selection Notes

Select this component when a balance of high performance and moderate pin count is required. The 1 MB Flash size suits complex firmware applications, while the 64-pin package offers a compact solution. Consider the 120 MHz clock speed for real-time processing tasks. Evaluate peripheral availability such as USB and ADC against project requirements to ensure optimal resource utilization.

Part Context

This part belongs to the SAM4S family, which provides pin-to-pin compatibility with SAM3N and SAM3S products. The series is designed for cost-sensitive applications demanding ARM Cortex-M4 performance. It shares architectural similarities with legacy SAM7S devices but offers enhanced memory and peripheral sets suitable for modern embedded systems.

Replacement Considerations

Direct substitutes may include other SAM4S variants with different memory sizes or packages, such as ATSAM4S16CA-AU. Verify electrical specifications and pinout compatibility before substitution. Cross-reference with SAM3S series parts if backward compatibility is required, ensuring software migration paths are considered.