ATSAMS70Q20B-AN

Overview

The ATSAMS70Q20B-AN is a 32-bit microcontroller from the SAM S70 series, featuring an ARM Cortex-M7 core operating at 300 MHz. It integrates 1 MB of Flash memory and 384 kB of SRAM within a 144-LQFP package. The device supports a supply voltage range of 1.62 V to 3.6 V and operates between -40°C and +105°C. Key peripherals include 24-channel 12-bit ADCs, two 12-bit DACs, Ethernet, CANbus, USB, and multiple communication interfaces.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP instructions
• Integrated connectivity including Ethernet MAC and CAN-FD controller
• Advanced analog capabilities with high-resolution ADCs and DACs
• Flexible memory architecture supporting external bus interface

Applications

• Industrial automation controllers
• Medical equipment systems
• Smart metering infrastructure
• Human-machine interface panels

Procurement Notes

Verify the specific suffix 'AN' against official Microchip documentation to confirm it denotes the standard commercial temperature grade and tray packaging variant. Ensure the part number matches the exact pinout and memory configuration required for your design, as minor suffix changes can alter package type or operational limits. Cross-reference with the latest datasheet revision for any errata or recommended operating conditions.

Selection Notes

Select this component when a balance of high computational power and extensive peripheral integration is required in a 144-pin form factor. It is suitable for applications needing robust connectivity options like Ethernet and CAN without requiring external controllers. Consider the 384 kB SRAM size relative to application complexity and ensure the LQFP package fits the PCB thermal and space constraints.

Part Context

This part belongs to the SAM S70 family, designed for high-performance embedded applications. It shares architectural similarities with other S70 variants but differs in memory size and package. The Q20 designation typically indicates 1 MB Flash and 384 kB RAM. It competes in the market for advanced 32-bit MCUs requiring real-time control and complex communication protocols.

Replacement Considerations

Direct substitutes within the same family include ATSAMS70Q20A-AN (previous generation) or ATSAMS70Q20B-CN (different package). Verify pin compatibility and software library support before swapping. Other packages like LFBGA-144 may require schematic and layout modifications.