ATSAME70N20B-CNT

Overview

The ATSAME70N20B-CNT is a 32-bit microcontroller from the Microchip SAM E70 series, featuring an ARM Cortex-M7 core operating at up to 300 MHz. It integrates 1 MB of Flash memory and 384 KB of SRAM within a 100-pin LQFP package. The device supports a supply voltage range of 1.62 V to 3.6 V and includes multiple communication interfaces such as Ethernet, USB, CANbus, I2C, SPI, and UART. It also provides 75 general-purpose I/Os, 10-channel 12-bit ADCs, and two 12-bit DACs.

Feature Summary

• High-performance processing via ARM Cortex-M7 core with DSP instructions
• Integrated Ethernet MAC with dedicated DMA for network applications
• Comprehensive connectivity suite including USB OTG and CANbus
• Flexible analog interface with multiple ADC channels and DAC outputs

Applications

• Industrial motor control systems
• Human-machine interface (HMI) displays
• Ethernet-based communication gateways
• Data acquisition systems requiring high-speed analog conversion

Procurement Notes

Verify the specific suffix 'CNT' against official Microchip documentation to confirm tape-and-reel packaging status, as standard listings may vary by distributor. Ensure the component matches the exact pinout and electrical specifications required for your design, particularly regarding the 100-LQFP footprint and voltage levels. Cross-reference the datasheet revision date to ensure compatibility with current development tools.

Selection Notes

Select this model when a balance of high computational power and extensive peripheral integration is required in a compact surface-mount package. It is suitable for designs needing robust networking capabilities alongside precise analog signal processing. Consider the 300 MHz clock speed for complex algorithm execution and verify that the 100-pin form factor accommodates all necessary I/O connections without excessive board space usage.

Part Context

This component belongs to the SAM E70 family, designed for demanding embedded applications. It shares architectural similarities with other SAM E70 variants but offers specific memory and package configurations. The series is known for its ability to handle complex graphics and networking tasks simultaneously, making it a versatile choice for advanced industrial and consumer electronics.

Replacement Considerations

Direct substitutes within the same package and pinout include ATSAME70N20A-AN or ATSAME70N20B-ANT, depending on packaging requirements. Verify functional equivalence in terms of Flash size, RAM capacity, and peripheral availability before substitution.