ATSAMS70N21A-CFNT

Overview

The ATSAMS70N21A-CFNT is a 32-bit microcontroller from the Microchip SAM S70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 2MB of flash memory and 384KB of SRAM within a 100-VFBGA (7x7) package. The device supports a supply voltage range of 1.08V to 3.6V and includes multiple communication interfaces such as I2C, SPI, UART/USART, USB, MMC/SD/SDIO, LINbus, and IrDA. It provides 75 I/O pins, ten 12-bit ADC channels, two 12-bit DAC channels, and peripherals including DMA, I2S, PWM, and watchdog timers.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP instructions
• Integrated high-density non-volatile memory for complex application storage
• Comprehensive connectivity suite supporting industrial and consumer protocols
• Advanced analog conversion capabilities with multiple high-resolution channels

Applications

• Industrial automation controllers requiring real-time processing
• Medical devices needing high-precision analog signal acquisition
• Consumer electronics utilizing multimedia data handling
• Smart metering systems with secure communication requirements

Procurement Notes

Verify the exact suffix CFNT against official Microchip documentation to confirm the specific tape-and-reel packaging configuration. Ensure compatibility with existing board layouts regarding the 100-VFBGA footprint and thermal dissipation requirements. Cross-reference the latest datasheet revision for any errata or design updates affecting pinout or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a balance of high computational speed and extensive peripheral integration is required in a compact form factor. It is suitable for designs needing robust analog interface capabilities alongside standard digital communication buses. Consider the 300MHz clock speed for applications demanding low-latency response times and efficient execution of complex algorithms without external memory expansion.

Part Context

This part belongs to the SAM S70 family, which targets performance-oriented embedded applications. The series shares architectural similarities with the E70 and V71 families but offers distinct memory and peripheral configurations tailored for specific market segments. The N21 variant specifically denotes the 2MB flash and 384KB RAM capacity within the S70 lineup.

Replacement Considerations

ATSAMS70N21A-CN: Same core specifications but in TFBGA packaging; verify pin compatibility. ATSAMS70Q21A-CFNT: Higher I/O count and different package size; requires schematic redesign.