ATSAM4S2CB-CFNR

Overview

The ATSAM4S2CB-CFNR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120 MHz. It features 128 Kbytes of Flash memory and 64 Kbytes of SRAM. The device includes a full-speed USB Device port, multiple communication interfaces including SPI, I2C, and USART, and analog peripherals with 16-channel 12-bit ADCs and two 12-bit DACs. It operates within a voltage range of 1.62 V to 3.6 V and supports an extended temperature range from -40 °C to +105 °C.

Feature Summary

• Integrates a high-performance 32-bit ARM Cortex-M4 RISC processor with hardware DSP instructions and a floating-point unit.
• Includes a full-speed USB Device port with dedicated DMA channels for efficient data transfer without CPU intervention.
• Provides extensive connectivity through multiple serial communication interfaces such as SPI, I2C, USART, and SSC.
• Features integrated analog conversion capabilities with 16-channel 12-bit ADCs and dual 12-bit DACs.

Applications

• USB-enabled peripheral devices requiring low power consumption
• Industrial control systems utilizing serial communication protocols
• Consumer electronics with analog signal processing needs
• Portable battery-powered applications requiring extended temperature operation

Procurement Notes

Verify the specific suffix CFNR against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the TFBGA-100 package. Check for any recent Product Change Notifications regarding assembly sites or material composition changes before finalizing procurement.

Selection Notes

Select this component when a balance of processing power and peripheral richness is required for cost-sensitive applications. The 120 MHz speed and 128 KB Flash are suitable for moderate complexity firmware. Consider alternative SAM4S variants if larger memory capacity or different package options like LQFP are needed for manufacturing constraints.

Part Context

This part belongs to the Atmel SMART SAM4S series, which is designed for applications demanding high performance and low power. The series utilizes the ARM Cortex-M4 core and offers various memory configurations and packages. It is positioned between lower-end AVR controllers and higher-end SAM7/SAM9 series processors.

Replacement Considerations

Direct substitutes include other members of the SAM4S family with identical pinouts and functionality but different memory sizes, such as ATSAM4S16CB or ATSAM4S8CB. Verify that the replacement part maintains the same package style and electrical specifications.