ATSAMV71Q21B-AAB

Overview

The ATSAMV71Q21B-AAB is an automotive-grade microcontroller from the SAM V71 series, built on a 32-bit ARM 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 LQFP package. The device supports a supply voltage range of 3.0 V to 3.6 V and functions across an extended temperature range of -40°C to +105°C. Key peripherals include 24 ADC channels with 12-bit resolution, multiple communication interfaces such as CAN, Ethernet, SPI, I2C, UART, and USB, alongside AEC-Q100 qualification for automotive reliability.

Feature Summary

• Automotive-qualified architecture compliant with AEC-Q100 standards for high-reliability applications
• High-performance processing via ARM Cortex-M7 core with integrated floating-point unit
• Comprehensive connectivity suite including GMAC, dual CAN controllers, and multiple serial interfaces

Applications

• Advanced Driver Assistance Systems (ADAS)
• Instrument clusters and digital cockpit displays
• Telematics control units
• Body electronics and gateway modules

Procurement Notes

Verify the specific suffix 'AAB' corresponds to the LQFP-144 package variant when ordering. Confirm that the required quantity matches standard manufacturing reel or tube specifications provided by Microchip. Ensure design-in documentation references the correct revision level to avoid discrepancies in pinout or electrical characteristics during production.

Selection Notes

Select this component when automotive certification and high-speed processing are mandatory. The 2 MB Flash capacity supports complex firmware and large graphics buffers for display driving. Compare against the ATSAME70 series if Ethernet AVB features are not required, or consider the ATSAMV71N variants for different memory configurations and package footprints.

Part Context

This MCU belongs to the SAM V71 family, designed specifically for demanding automotive environments. It shares architectural similarities with the SAM E70 but includes enhanced peripheral sets and automotive-specific qualifications. The device serves as a central processing unit for systems requiring real-time performance, robust networking, and high data throughput in vehicle networks.

Replacement Considerations

Direct pin-compatible alternatives within the same package may include other SAM V71 variants with differing memory sizes, such as the ATSAMV71Q20B. For non-pin-compatible upgrades, evaluate the ATSAME70 series for similar core performance without automotive-specific interface enhancements.