ATSAME70N19B-AN

Overview

The ATSAME70N19B-AN is a 32-bit microcontroller based on the ARM Cortex-M7 core with a floating-point unit (FPU). It operates at frequencies up to 300 MHz and features 512 KB of embedded flash memory and 256 KB of multi-port SRAM. The device includes configurable tightly coupled memory (TCM) interfaces, a 10/100 Mbps Ethernet MAC with AVB support, and USB High-Speed capabilities. It offers 44 I/O pins in a 64-LQFP package, supporting a supply voltage range of 1.7 V to 3.6 V.

Feature Summary

• High-performance ARM Cortex-M7 processor with single and double precision hardware FPU for advanced DSP functions.
• Integrated 10/100 Mbps Ethernet MAC with dedicated hardware support for Audio Video Bridging (AVB) and IEEE 1588 PTP.
• Configurable Tightly Coupled Memory (TCM) interface allowing flexible allocation of instruction and data memory for optimized performance.
• Comprehensive connectivity suite including CAN-FD, FS USB Host/Device, USARTs, SPI, TWI, and multiple DMA controllers.

Applications

• Industrial automation and control systems requiring deterministic communication.
• Smart energy metering and grid infrastructure applications.
• Medical equipment and imaging devices needing high-speed data processing.
• Automotive infotainment and instrument cluster displays.

Procurement Notes

Verify the specific suffix 'AN' against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with MPLAB X IDE and Harmony software frameworks during integration. Check for RoHS compliance status and moisture sensitivity level requirements prior to PCB assembly planning.

Selection Notes

Select this model when a balance of moderate pin count and high processing power is required. It is suitable for designs needing Ethernet AVB but not the higher I/O counts or larger memory of Q-series variants. Consider the 64-LQFP package constraints for board space and thermal management relative to BGA options.

Part Context

This component belongs to the SAM E70 family, designed for cost-sensitive applications requiring Cortex-M7 performance. It shares architectural similarities with the S70 and V70 families but differs in peripheral availability and memory capacity. The N-series typically denotes specific pin counts and peripheral subsets within the broader E70 ecosystem.

Replacement Considerations

ATSAME70J19B-AN: Similar memory and core but different pin count and package. ATSAMS70N19B-CN: Pin-compatible alternative with CAN-FD support and different package. ATSAMV70N19B-AANT: Higher performance variant with expanded peripherals.