ATSAMS70Q20A-CFNT

Overview

The ATSAMS70Q20A-CFNT is a 32-bit microcontroller from the SAM S70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 1MB of flash memory and 384KB of SRAM within a 144-UFBGA package measuring 6x6 mm. The device supports a supply voltage range of 1.08V to 3.6V and includes 24-channel 12-bit ADCs and two 12-bit DACs. Connectivity options encompass Ethernet, CANbus, I2C, SPI, UART/USART, USB, QSPI, MMC/SD/SDIO, LINbus, IrDA, and EBI/EMI interfaces. It offers 114 I/O pins and operates between -40°C and 105°C.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP capabilities
• Integrated Ethernet MAC with dedicated DMA for network applications
• Extensive peripheral set including multiple serial controllers and analog converters
• Flexible memory architecture supporting in-system programming

Applications

• Industrial automation and control systems
• Medical equipment requiring high reliability
• Smart metering and utility infrastructure
• Human-machine interface (HMI) displays

Procurement Notes

Verify the specific suffix CFNT confirms the 144-UFBGA(6x6) package type and tape-and-reel shipping format. Ensure the A variant matches the required voltage range of 1.08V to 3.6V for your power design. Confirm RoHS compliance status if environmental regulations apply to your assembly process. Cross-reference the datasheet revision date against your production timeline to account for any potential specification updates or errata notices.

Selection Notes

Select this component when a balance of high-speed processing and rich connectivity is required without the cost of larger packages. The UFBGA form factor suits space-constrained designs needing robust thermal performance. Compare against the ATSAME70 series if Ethernet functionality is not needed, as it may offer different pinout optimizations. Consider the ATSAMS70Q21A variant if additional flash storage capacity exceeds the 1MB limit of this specific model.

Part Context

This MCU belongs to the SAM S70 family, designed for high-performance embedded applications. It shares architectural similarities with the SAM E70 but includes integrated Ethernet PHY support in certain variants. The Q20 designation indicates the specific memory configuration and peripheral subset. It serves as a central processing unit for complex tasks involving real-time data acquisition and communication protocol handling.

Replacement Considerations

ATSAME70Q20A-CFNT is a compatible alternative within the same package and memory configuration, differing primarily in the absence of the integrated Ethernet PHY found in the S70 series.