ATSAME70Q21B-AN

Overview

The ATSAME70Q21B-AN is a 32-bit microcontroller from the SAM E70 series, featuring an ARM Cortex-M7 core operating at 300MHz. It integrates 2MB of Flash memory and 384KB of SRAM within a 144-pin LQFP package. The device includes dual high-speed USB controllers, dual CAN-FD interfaces, and a 10/100 Ethernet MAC. It supports single and double precision floating-point operations via its FPU and provides extensive connectivity options including SPI, I2C, UART, and QSPI.

Feature Summary

• Integrates a high-performance ARM Cortex-M7 processor with hardware floating-point unit for complex mathematical computations
• Provides robust industrial communication capabilities through dual CAN-FD and 10/100 Ethernet MAC interfaces
• Supports advanced digital signal processing tasks using dedicated DSP extension instructions

Applications

• Industrial gateways requiring high computational density
• Motor control systems utilizing field-oriented control algorithms
• Human-machine interface devices demanding fast response times

Procurement Notes

Verify the specific suffix AN corresponds to the LQFP-144 package variant when sourcing. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure supply chain partners provide valid traceability records. Cross-reference the manufacturer part number against current datasheet revisions to avoid obsolete stock. Validate environmental ratings match application requirements.

Selection Notes

Select this component for designs requiring significant on-chip memory and multiple high-speed serial interfaces. The integrated Ethernet and CAN-FD reduce external transceiver dependencies. Consider the thermal performance of the LQFP package under continuous load. Evaluate power consumption profiles against system battery or supply constraints. Verify peripheral availability matches sensor and actuator connection needs.

Part Context

This microcontroller belongs to the SAM E70 family, designed for applications needing substantial processing power in a compact form factor. It shares architectural similarities with other Cortex-M7 based MCUs but offers specific peripheral combinations tailored for industrial networking. The device serves as a central processing unit for embedded systems requiring deterministic real-time performance.

Replacement Considerations

ATSAME70Q20A-AN offers similar architecture with reduced Flash capacity. ATSAMS70Q21B-ANT provides identical specifications in a BGA package. ATSAME70Q21B-CN utilizes a different surface mount footprint. Verify pin compatibility and software library support before substituting.