ATSAMS70Q21B-ANT

Overview

The ATSAMS70Q21B-ANT is a 32-bit ARM Cortex-M7 microcontroller from the SAM S70 series. It operates at a maximum clock frequency of 300 MHz and includes 2 MB of Flash memory and 384 kB of SRAM. The device features 16 kB of ROM, 114 I/O lines, and supports supply voltages between 1.7 V and 3.6 V. It integrates 24-channel 12-bit ADCs, two 12-bit DACs, and interfaces including SPI, UART/USART, and USB. Packaged in LQFP-144, it functions within a temperature range of -40°C to +105°C.

Feature Summary

• High-performance processing via ARM Cortex-M7 core running up to 300 MHz
• Integrated large-capacity non-volatile storage with 2 MB Flash and 384 kB SRAM
• Comprehensive analog conversion capabilities featuring 24-channel 12-bit ADCs and dual 12-bit DACs
• Extensive connectivity options supporting multiple communication protocols and extensive I/O availability

Applications

• Industrial automation controllers requiring high-speed processing
• Human-machine interface (HMI) displays for industrial equipment
• Medical devices needing precise analog signal acquisition
• Smart metering systems with robust data handling requirements

Procurement Notes

Verify the specific suffix ANT corresponds to the LQFP-144 reel packaging configuration before ordering. Confirm that the required voltage range and temperature specifications align with the target application environment. Ensure compatibility with existing development tools such as ATATMEL-ICE or AT91SAM-ICE for programming and debugging purposes during the procurement phase.

Selection Notes

Select this component when a balance of high computational throughput and substantial memory capacity is required within a standard surface-mount package. The inclusion of numerous analog peripherals makes it suitable for applications involving sensor integration. Consider the 144-pin footprint constraints and thermal management requirements associated with the LQFP-144 package during the initial design phase.

Part Context

This part belongs to the Microchip SAM S70 family, which utilizes the ARM Cortex-M7 architecture. The family provides scalable solutions for complex embedded applications. The Q21 variant specifically denotes the 2 MB Flash configuration within this series, distinguishing it from lower-memory counterparts like the Q20 or Q19 models while maintaining identical peripheral sets and core performance characteristics.

Replacement Considerations

ATSAMS70Q21A-CFN serves as a pin-compatible alternative offering identical functional specifications but utilizes a UFBGA-144 package instead of LQFP-144. Designers must account for significant PCB layout changes due to the different package type when substituting this component.