ATSAMS70J21B-MNT

Overview

The ATSAMS70J21B-MNT is a 32-bit microcontroller from the SAM S70 series, featuring an ARM Cortex-M7 core operating at 300 MHz. It integrates 2 MB of flash memory and 384 KB of SRAM within a VQFN-64 package. The device supports a supply voltage range of 1.7 V to 3.6 V and includes five 12-bit ADC channels and one 12-bit DAC. Connectivity options include SPI, UART/USART, and USB interfaces, with 44 available I/O pins.

Feature Summary

• High-performance processing via ARM Cortex-M7 architecture
• Integrated non-volatile program storage and static RAM
• Support for multiple serial communication protocols
• On-chip analog-to-digital and digital-to-analog conversion

Applications

• Industrial control systems requiring high-speed processing
• Medical devices utilizing analog signal acquisition
• Automotive infotainment and instrument clusters
• Smart home hubs with connectivity requirements

Procurement Notes

Verify the specific suffix B against official Microchip documentation to confirm any functional or regulatory distinctions from the A variant. Ensure compatibility with the VQFN-64 footprint during PCB layout. Confirm moisture sensitivity level handling procedures prior to assembly to prevent package damage during reflow soldering processes.

Selection Notes

Select this component when a balance of moderate pin count and substantial memory is required. The VQFN-64 package suits space-constrained designs compared to larger BGA options. Consider the 300 MHz speed for complex algorithm execution. Verify that the 44 I/O count meets interface needs without excessive multiplexing.

Part Context

This part belongs to the SAM S70 family, designed for applications demanding robust performance and rich peripheral sets. It shares the core architecture with the E70 and V71 families but offers distinct memory and peripheral configurations tailored for cost-sensitive yet powerful embedded solutions.

Replacement Considerations

ATSAMS70J21A-MNT