ATSAM4S16CB-CNR

Overview

The ATSAM4S16CB-CNR is a 32-bit microcontroller from the SAM4S series, featuring an ARM Cortex-M4 core operating at up to 120 MHz. It integrates 1 MB of embedded Flash memory and 160 KB of SRAM. The device utilizes a 100-TFBGA (9x9) package with 79 I/O pins. It supports a supply voltage range of 1.62 V to 3.6 V and operates within a temperature range of -40°C to 105°C. Key peripherals include USB 2.0, multiple USARTs, SPI, I2C, and a 16-channel 12-bit ADC.

Feature Summary

• Integrates an ARM Cortex-M4 processor with DSP instructions and Memory Protection Unit for secure high-performance execution.
• Provides extensive connectivity options including USB 2.0 Device, Ethernet MAC, and various serial communication interfaces.
• Features low-power management capabilities with sleep and backup modes to optimize energy consumption in portable applications.

Applications

• Smart metering systems requiring secure data handling and long-term reliability
• Industrial control devices needing robust peripheral integration and real-time processing
• Consumer electronics utilizing USB connectivity and high-density pin configurations

Procurement Notes

Verify the suffix CNR indicates tape-and-reel packaging distinct from the tray-packaged CN variant. Confirm the specific speed grade and temperature rating match the design requirements. Ensure ESD precautions are observed during handling due to moisture sensitivity level 3. Cross-reference the latest datasheet errata for any known silicon revisions affecting peripheral behavior or electrical characteristics before finalizing procurement.

Selection Notes

Select this component when a balance of high flash capacity and dense packaging is required for space-constrained designs. The TFBGA package offers thermal performance advantages over LQFP alternatives. Consider the availability of development tools and software libraries compatible with the SAM4S architecture. Evaluate power consumption profiles against application duty cycles to ensure compliance with battery life expectations.

Part Context

This part belongs to the Microchip SAM4S family, which bridges the gap between legacy SAM7S and newer SAM4N/SAM4E series. It shares pin compatibility with SAM3S products in certain packages, facilitating migration paths. The series is designed for applications demanding moderate performance with integrated security features and extensive analog peripherals.

Replacement Considerations

ATSAM4S16CB-CN is the tray-packaged equivalent with identical electrical specifications. ATSAM4S16CA-CFU offers a QFN-100 package option for different board layout constraints. Verify pinout compatibility when substituting with other SAM4S variants to ensure seamless integration without hardware redesign.