ATSAMS70Q20B-CNT

Overview

The ATSAMS70Q20B-CNT is a 32-bit microcontroller from the Microchip SAM S70 series, featuring an ARM Cortex-M7 core operating at a maximum frequency of 300 MHz. It integrates 1 MB of Flash memory and 384 KB of SRAM within a 144-pin LFBGA package. The device supports a supply voltage range of 1.7 V to 3.6 V and includes 114 general-purpose I/Os. Peripheral interfaces include SPI, UART/USART, USB, I2C, LINbus, IrDA, MMC/SD/SDIO, QSPI, EBI/EMI, and I2S. Analog capabilities consist of 24 channels of 12-bit ADC and two 12-bit DACs.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with integrated DSP instructions
• Comprehensive connectivity suite supporting Ethernet, USB, and multiple serial protocols
• Integrated analog subsystem with high-resolution ADC and DAC for sensor interfacing
• Flexible memory architecture with extensive static RAM and non-volatile storage options

Applications

• Industrial automation controllers requiring real-time processing
• Human-machine interface (HMI) panels with graphical displays
• Smart metering systems utilizing advanced communication protocols
• Medical equipment requiring precise analog signal acquisition

Procurement Notes

Verify the suffix 'CNT' corresponds to the tape and reel packaging variant rather than the tray version. Confirm the specific temperature grade and RoHS compliance status against the manufacturer's current datasheet revision. Ensure the ordering part number matches the exact pin count and memory configuration required for the design. Check for any recent product change notices affecting pinout or electrical characteristics.

Selection Notes

Select this component when a balance of moderate flash capacity and high-speed processing is needed. The 144-pin package provides ample I/O for complex peripheral integration without requiring larger footprints. Consider the power consumption profile relative to the 300 MHz clock speed for battery-operated applications. Evaluate the availability of development tools compatible with the SAM S70 family for efficient prototyping.

Part Context

This microcontroller belongs to the SAM S70 family, designed for high-performance embedded applications. It shares architectural similarities with the SAM E70 and SAM V70 series but offers distinct memory configurations. The device targets markets demanding robust connectivity and analog processing capabilities in a compact form factor.

Replacement Considerations

ATSAMS70Q20A-CN: Similar specifications with potential differences in manufacturing lot or minor feature set variations. ATSAMS70Q21A-CN: Offers increased Flash memory capacity while maintaining the same core and package.