ATSAME70N19A-AN

Overview

The ATSAME70N19A-AN is a 32-bit ARM Cortex-M7 microcontroller from the SAM E70 series, manufactured by Microchip Technology. It features a maximum clock frequency of 300 MHz and includes 512 kB of Flash memory alongside 256 kB of SRAM. The device operates within a supply voltage range of 1.62 V to 3.6 V and supports an operating temperature range of -40°C to +105°C. It provides 75 general-purpose I/Os and integrates multiple communication interfaces including SPI, UART, USART, USB, CANbus, Ethernet, I2C, LINbus, MMC/SD/SDIO, QSPI, and IrDA. The component is housed in a 100-LQFP package.

Feature Summary

• High-performance processing capability enabled by the ARM Cortex-M7 core running at up to 300 MHz.
• Integrated hardware security features supporting secure boot and cryptographic operations for data protection.
• Comprehensive connectivity suite including Ethernet MAC, USB OTG, and multiple serial communication peripherals.
• Advanced analog subsystem with dual 12-bit DACs and ten 12-bit ADC channels for signal processing.

Applications

• Industrial motor control systems requiring high-speed processing and precise timing.
• Human-machine interface (HMI) displays utilizing graphical capabilities and touch screen controllers.
• Smart metering applications demanding secure communication and reliable data acquisition.
• Medical equipment requiring robust real-time control and safety-critical performance.

Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape-and-reel status if applicable. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure that the selected variant matches the required pin count and memory configuration for the target design. Cross-reference the datasheet revision to ensure compatibility with existing firmware libraries and peripheral drivers.

Selection Notes

Select this component when a balance of moderate flash capacity and high processing speed is required. The 100-pin LQFP package offers a practical solution for designs needing extensive I/O without excessive board space. Consider the integrated Ethernet and USB peripherals to reduce external component count. Evaluate power consumption requirements against the 1.62V to 3.6V operating range for battery or mains-powered applications.

Part Context

This microcontroller belongs to the SAM E70 family, which targets high-performance embedded applications. It shares architectural similarities with other SAM E70 variants but differs in memory size and package options. The family is designed for complex control loops and rich user interfaces. Development tools such as the MCHV-3 or MCLV-2 boards may be used for evaluation and prototyping purposes.

Replacement Considerations

ATSAMS70N19A-AN serves as a direct functional equivalent within the SAM S70 series. For higher memory configurations, consider the ATSAME70N20A-AN or ATSAME70N21A-AN. Lower pin-count alternatives include the ATSAME70J19A-ANT in a 64-LQFP package. Verify pin compatibility and memory mapping before substituting with any cross-series components.