ATSAMS70Q21B-CNT

Overview

The ATSAMS70Q21B-CNT is an ARM microcontroller from the SAM S70 series, featuring a Cortex-M7 core operating at up to 300 MHz. It integrates 2 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 interfaces such as SPI, UART/USART, and USB. It offers 114 I/O pins, 24 ADC channels with 12-bit resolution, and a 12-bit DAC.

Feature Summary

• High-performance processing via ARM Cortex-M7 architecture
• Integrated high-capacity non-volatile and volatile memory
• Comprehensive analog input capabilities with multiple ADC channels
• Versatile communication interface support for system connectivity

Applications

• Industrial automation control systems
• Human-machine interface (HMI) displays
• Medical equipment requiring precise signal acquisition
• Automotive infotainment and instrument clusters

Procurement Notes

Verify the specific suffix CNT indicates tape and reel packaging when sourcing components. Confirm the manufacturer part number matches Microchip Technology documentation exactly. Ensure compatibility with existing design files by checking pin assignments against the official datasheet. Validate that the component meets required environmental specifications for the intended operational temperature range.

Selection Notes

Select this model when high computational throughput is required alongside substantial memory resources. The 300 MHz clock speed suits complex algorithm execution. The 144-pin BGA package provides extensive I/O availability for peripheral-rich designs. Consider the 1.7 V minimum voltage for low-power operation requirements compared to higher-voltage alternatives.

Part Context

This component belongs to the SAM S70 family, designed for applications demanding robust performance and rich connectivity. It shares architectural similarities with other SAM S70 variants but distinguishes itself through its specific memory configuration and package type. The family targets cost-sensitive yet high-performance embedded markets.

Replacement Considerations

ATSAMS70Q21A-CNT offers similar specifications with potentially different memory configurations or revisions. ATSAMS70Q20B-CNT provides comparable performance with reduced Flash capacity. Verify pin-to-pin compatibility and software library support before substituting these alternatives.