ATSAME70Q20B-CFN

Overview

The ATSAME70Q20B-CFN is a 32-bit microcontroller from the SAM E70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 1MB of flash memory and 384KB of SRAM within a 144-LFBGA package. The device supports a supply voltage range of 1.7V to 3.6V and includes 114 I/O pins. Peripheral interfaces include Ethernet, USB, CANbus, SPI, UART, and I2C. Analog capabilities consist of 24-channel 12-bit ADCs and two 12-bit DACs.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP instructions
• Integrated Ethernet MAC with dedicated DMA for network communication
• Comprehensive analog conversion suite including multiple high-speed ADCs and DACs
• Flexible connectivity supporting various industrial and consumer protocols

Applications

• Industrial automation controllers requiring real-time processing
• Human-machine interface (HMI) displays with graphical capabilities
• Smart metering systems utilizing advanced analog measurement features
• Motor control applications leveraging integrated PWM and timer peripherals

Procurement Notes

Verify the specific suffix 'CFN' corresponds to the 144-LFBGA package variant during procurement. Confirm that the 'B' revision designation aligns with current manufacturing lot requirements. Ensure compatibility with existing board layouts regarding the LFBGA footprint dimensions. Cross-reference the datasheet revision history for any pinout or electrical characteristic updates prior to finalizing orders.

Selection Notes

Select this component when a balance of high computational throughput and extensive peripheral integration is required. The 1MB flash capacity suits complex firmware implementations without external memory. The 144-pin BGA package offers a compact solution for space-constrained designs. Consider thermal management requirements due to the 300MHz operation frequency in enclosed environments.

Part Context

This part belongs to the Microchip SAM E70 family, designed for high-performance embedded applications. It shares architectural similarities with the SAM S70 and SAM V70 series but focuses on cost-effective industrial solutions. The Q20 designation indicates specific memory configurations within the broader E70 product line, distinguishing it from variants with smaller flash or RAM capacities.

Replacement Considerations

ATSAME70Q20B-CN serves as a direct package alternative offering identical electrical specifications in a different form factor.