ATSAM4S8CA-CFU

Overview

The ATSAM4S8CA-CFU is a 32-bit microcontroller from the SAM4S series, built on an ARM Cortex-M4 core operating at up to 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 temperatures from -40°C to +105°C. Key peripherals include a USB 2.0 Device interface, HS SDIO/SD/MMC controller, three SPIs, two I2Cs, two USARTs, sixteen 12-bit ADC channels, and two 12-bit DACs.

Feature Summary

• Integrates an ARM Cortex-M4 processor with a 2 KB cache and multi-layer AHB matrix for high-performance data processing.
• Provides hardware code protection features including IP access prevention, secure chip erase, and CRC memory integrity checks.
• Supports Microchip QTouch capacitive touch technology for implementing buttons, sliders, and wheels.
• Features low-power capabilities with backup mode consumption as low as 1 µA when the RTC is active.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'CFU' corresponds to the 100-pin VFBGA package and industrial temperature range (-40°C to +105°C). Confirm that the component is RoHS compliant and matches the datasheet revision DS60001419B. Ensure the procurement channel provides valid traceability documentation for this specific Microchip Technology part number.

Selection Notes

Select this model when a 100-pin VFBGA footprint is required for the SAM4S architecture. It offers 512 KB Flash and 128 KB SRAM, suitable for applications needing moderate memory density. Consider pin-to-pin compatibility with SAM3S and SAM7S legacy products if migration is necessary. Verify peripheral requirements against the available USB, SDIO, and analog interfaces.

Part Context

This component belongs to the SAM4S family of scalable 32-bit MCUs designed for performance and power efficiency. The series extends Microchip's portfolio by combining the Cortex-M4 core with rich connectivity options. The ATSAM4S8CA-CFU specifically targets designs requiring a balance of processing speed and integrated memory in a compact surface-mount package.

Replacement Considerations

ATSAM4S8CA-CU (100-pin TFBGA)

FAQ

Does the ATSAM4S8CA-CFU support Microchip QTouch?

Yes, the SAM4S series provides native support for Microchip's QTouch technology to implement capacitive touch interfaces.

What is the maximum operating frequency of this MCU?

The device operates at a maximum frequency of 120 MHz.