ATSAM4N8AA-AU

Overview

The ATSAM4N8AA-AU is an ARM microcontroller from the SAM4N series, featuring a Cortex-M4 core operating at up to 100 MHz. It integrates 512 kB of Flash program memory and 64 kB of SRAM data RAM within a 48-pin LQFP package. The device supports a supply voltage range of 1.62 V to 1.95 V and includes eight 10-bit ADC channels. It provides 34 general-purpose I/O pins and interfaces such as I2C, SPI, and UART, functioning within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor core for efficient code execution
• Includes built-in hardware cryptographic acceleration capabilities
• Features multiple communication peripherals including SPI, I2C, and UART
• Supports low-power operation modes suitable for battery-powered applications

Applications

• Industrial control systems requiring secure data processing
• Smart metering devices with encryption needs
• Consumer electronics utilizing ARM Cortex-M4 architecture
• Wearable technology with limited power budgets

Procurement Notes

Verify the specific suffix AU corresponds to the LQFP-48 package and industrial temperature grade when ordering. Confirm RoHS compliance status through official Microchip documentation prior to procurement. Ensure that the intended application environment remains within the specified voltage and temperature limits defined in the datasheet to maintain operational reliability.

Selection Notes

Select this component when a balance of moderate memory capacity and cryptographic security is required. The 512 kB Flash and 64 kB RAM suit complex firmware without excessive resource usage. Consider the 48-pin LQFP form factor for PCB space constraints compared to larger packages. Evaluate the 100 MHz speed against lower-frequency alternatives if power consumption is a primary design constraint.

Part Context

This part belongs to the SAM4N family, designed for cost-sensitive applications needing cryptographic features. It shares architectural similarities with other SAM4N variants but differs in memory size and package options. The series targets markets where security and efficiency are prioritized over maximum processing power or extensive peripheral counts found in higher-end models.

Replacement Considerations

Consult official substitution lists for pin-compatible or functionally equivalent parts within the SAM4N series. Verify that any alternative maintains the same cryptographic engine support and memory configuration. Cross-reference package dimensions and electrical specifications to ensure compatibility with existing board designs.