ATSAM4S16CB-CFN

Overview

The ATSAM4S16CB-CFN is a 32-bit microcontroller from the SAM4S series, featuring an ARM Cortex-M4 core with DSP instructions and a Memory Protection Unit. It integrates up to 1 Mbyte of embedded Flash memory and 160 Kbytes of SRAM. The device operates at a maximum clock frequency of 120 MHz and includes a high-precision internal RC oscillator. Key peripherals include USB 2.0 Device support, multiple USARTs, SPI, I2C, and a Real-Time Clock with calendar functionality. It supports low-power modes including Sleep and Backup.

Feature Summary

• Integrates ARM Cortex-M4 processor with DSP instruction set and Memory Protection Unit for secure execution.
• Provides extensive connectivity options including USB 2.0 Device, multiple serial interfaces, and parallel memory controller.
• Features built-in power management with voltage regulator, brown-out detector, and ultra-low-power RTC.

Applications

• Industrial control systems requiring robust peripheral integration
• USB-enabled consumer electronics and data logging devices
• Smart metering applications with real-time clock requirements

Procurement Notes

Verify the specific suffix 'CFN' against official Microchip documentation to confirm package type and temperature range, as distributor listings may vary or contain typos. Ensure compatibility with required operating temperatures and interface configurations before procurement. Cross-reference with the latest datasheet revision to avoid obsolete variants.

Selection Notes

Select this component when a balance of processing power and peripheral richness is needed within a compact form factor. The SAM4S series offers pin-to-pin compatibility with older SAM3 and SAM7 families, facilitating migration. Consider the available Flash and RAM sizes relative to application firmware complexity and ensure the package option meets PCB layout constraints.

Part Context

The ATSAM4S16CB-CFN belongs to the SAM4S family, designed for cost-sensitive applications requiring moderate performance. It shares architectural similarities with the SAM4L and SAM4E series but focuses on general-purpose control tasks. The series is widely used in industrial automation and home appliances due to its reliability and comprehensive peripheral set.

FAQ

Does the ATSAM4S16CB-CFN support USB OTG?

No, the ATSAM4S16CB-CFN supports only USB 2.0 Device mode. It does not include On-The-Go (OTG) capabilities.

What is the maximum operating speed of the core?

The ARM Cortex-M4 core can operate at a maximum frequency of 120 MHz.