ATSAME70Q19B-CFNT

Overview

The ATSAME70Q19B-CFNT is a 32-bit microcontroller from the Microchip SAM E70 series, built on an ARM Cortex-M7 core. It operates at a maximum frequency of 300MHz and includes 512KB of embedded flash memory and 256KB of SRAM. The device features a 144-pin UFBGA package (6x6 mm) with 114 I/O lines. It supports a supply voltage range of 1.62V to 3.6V and functions within a temperature range of -40°C to 105°C. Integrated peripherals include multiple communication interfaces such as Ethernet, USB, CAN-FD, SPI, and UART, alongside 24-channel 12-bit ADCs and two 12-bit DACs.

Feature Summary

• High-performance ARM Cortex-M7 processor with hardware floating-point unit for advanced DSP capabilities
• Integrated 10/100 Mbps Ethernet MAC with AVB support and dedicated DMA controller
• Flexible connectivity including USB High-Speed host/device, CAN-FD, and multiple serial interfaces
• Configurable tightly coupled memory architecture to optimize instruction and data access latency

Applications

• Industrial automation controllers requiring deterministic real-time performance
• Smart energy metering systems utilizing high-precision analog front ends
• Medical devices needing robust safety features and reliable communication protocols
• Automotive infotainment or body control modules supporting Ethernet AVB

Procurement Notes

Verify the specific suffix CFNT indicates the tape-and-reel packaging format when ordering. Confirm that the B variant revision matches your design requirements against the latest datasheet errata. Ensure compatibility with the 144-UFBGA footprint during PCB layout. Check for any lead-free or RoHS compliance certifications required by your manufacturing standards before finalizing procurement.

Selection Notes

Select this component if your application requires a balance of high processing speed and moderate memory capacity in a compact surface-mount package. Compare against other SAM E70 variants based on specific I/O counts and peripheral availability. Consider the thermal characteristics of the UFBGA package for your enclosure design. Evaluate power consumption profiles across different operating modes to ensure they meet system efficiency targets.

Part Context

This part belongs to the SAM E70 family, which targets high-performance embedded applications. It shares architectural similarities with the S70 and V70 series but differs in memory size and peripheral sets. The Q20/Q19 designation typically refers to specific pin counts and memory configurations within the LQFP and BGA form factors. This series is designed to replace older 32-bit MCUs in demanding industrial and consumer electronics roles.

Replacement Considerations

Direct pin-to-pin replacements may be limited due to package variations. Review the SAM E70 family selector guide for alternatives with similar memory sizes. Verify software compatibility if migrating from previous Microchip MCU generations. Check for any obsolescence notices or recommended new parts issued by Microchip Technology.