ATSAM4S8CA-CFUR

Overview

The ATSAM4S8CA-CFUR is a 32-bit ARM Cortex-M4 microcontroller operating at 120 MHz. It integrates 512 KB of Flash memory and 128 KB of SRAM within a 100-pin VFBGA package. The device supports a supply voltage range of 1.62V to 3.6V and operates across an industrial temperature range of -40°C to +105°C. Key peripherals include a full-speed USB device interface, HS SDIO/SD/MMC controller, three SPI channels, two I2C interfaces, two USARTs, sixteen 12-bit ADC channels, and two 12-bit DAC channels.

Feature Summary

• Integrates ARM Cortex-M4 core with 2 KB cache and multi-layer AHB matrix for high data rate communication
• Supports Microchip QTouch capacitive touch technology for buttons, sliders, and wheels
• Provides hardware code protection including IP access prevention and secure chip erase capabilities
• Features low power consumption with RAM retention mode below 25 µA and backup mode at 1 µA

Applications

• Consumer goods and toys
• Industrial control systems
• Metering devices
• Medical equipment
• Test and measurement instruments

Procurement Notes

Verify the ordering suffix 'R' indicates tape and reel packaging configuration. Confirm the 'CFU' designation corresponds to the specific 100-pin VFBGA package variant. Ensure compatibility with the required operating temperature range and verify that the selected component matches the exact memory density and peripheral set specified in the datasheet.

Selection Notes

Select this component when a 100-pin surface mount solution is required for applications needing 512 KB Flash and 128 KB SRAM. Consider the VFBGA package constraints regarding PCB layout and thermal management. Evaluate the availability of development tools such as Atmel Studio and SAM4S Xplained Pro boards for prototyping and debugging purposes during the design phase.

Part Context

This part belongs to the SAM4S series of microcontrollers based on the ARM Cortex-M4 processor. The series offers scalability up to 2 MB Flash and 160 KB SRAM. It provides pin-to-pin compatibility with SAM4N, SAM3S, SAM3N, and SAM7S devices to facilitate migration within the portfolio. The family emphasizes performance, power efficiency, and rich peripheral integration.

Replacement Considerations

ATSAM4S8CA-CFU (Tray Packaging)

FAQ

Does the ATSAM4S8CA-CFUR support Microchip QTouch technology?

Yes, the SAM4S series provides native support for Microchip's QTouch technology, enabling the implementation of buttons, sliders, and wheels.

What is the maximum operating frequency of the ATSAM4S8CA-CFUR?

The device operates at a maximum speed of 120 MHz.