ATSAMS70Q19B-CFN

Overview

The ATSAMS70Q19B-CFN is a 32-bit microcontroller unit (MCU) based on the ARM Cortex-M7 core, belonging to the SAM S70 series. It operates at a maximum clock frequency of 300 MHz and includes 512 KB of flash memory and 256 KB of SRAM. The device features an integrated Analog Front End (AFE) with 12-bit ADC resolution and 12-bit DAC capabilities. Connectivity options include CAN-FD, Ethernet, I²C, SPI, UART/USART, USB, and QSPI interfaces. It is housed in a 144-LFBGA package measuring 10x10 mm and supports a supply voltage range of 1.7 V to 3.6 V.

Feature Summary

• Integrates an Analog Front End (AFE) with 12-bit ADC and DAC for precise signal processing applications.
• Supports high-speed communication protocols including CAN-FD and Ethernet for robust industrial networking.
• Features a 300 MHz ARM Cortex-M7 processor with hardware floating-point unit for complex computational tasks.

Applications

• Industrial automation controllers requiring real-time processing and analog input handling
• Smart metering systems utilizing AFE capabilities for energy measurement
• Medical equipment needing high-precision data conversion and reliable connectivity

Procurement Notes

Verify the exact suffix 'B' against the manufacturer's latest datasheet to confirm silicon revision and errata status. Ensure the 144-LFBGA footprint matches your PCB design guidelines. Confirm RoHS compliance documentation is available from the authorized distributor. Check for any specific packaging requirements such as moisture sensitivity level handling during storage and assembly.

Selection Notes

Select this component when both high-performance computing via Cortex-M7 and integrated analog front-end functionality are required. Compare pin counts and peripheral availability against other SAM S70 variants like the ATSAMS70N or ATSAMS70J series if package size constraints differ. Ensure the 144-pin LFBGA package is suitable for your manufacturing capabilities.

Part Context

This MCU is part of Microchip's SAM S70 family, designed for high-performance embedded applications. It shares architectural similarities with the SAM E70 and SAM V70 families but offers specific peripheral configurations tailored for cost-sensitive yet powerful industrial solutions. The S70 series bridges the gap between mid-range MCUs and higher-end MPU solutions.

Replacement Considerations

ATSAMS70Q19A-CN: Older silicon revision with potentially different errata; verify functional compatibility. ATSAMS70Q20B-CFN: Offers increased memory (1 MB Flash, 384 KB SRAM); check if additional resources are needed or if pinout remains identical.