ATSAM4S8BA-ANR

Overview

The ATSAM4S8BA-ANR is an ARM microcontroller from the SAM4S series, featuring a 32-bit ARM Cortex-M4 core with a maximum clock frequency of 120 MHz. It integrates 512 kB of Flash program memory and 128 kB of SRAM data RAM within a 100-pin LQFP package. The device supports an operating voltage range of 1.62 V to 3.6 V and functions across a temperature range of -40°C to +85°C. Peripheral interfaces include I2C, SPI, UART, USART, and USB.

Feature Summary

• Integrates a high-performance ARM Cortex-M4 processor core for efficient code execution.
• Includes built-in cryptographic acceleration capabilities for secure data processing.
• Features multiple communication interfaces including USB and standard serial protocols.
• Provides integrated analog-to-digital conversion for sensor signal acquisition.

Applications

• Industrial control systems requiring secure communication
• Medical devices with data integrity requirements
• Consumer electronics utilizing USB connectivity
• Smart metering applications

Procurement Notes

Verify the specific suffix 'ANR' against official Microchip documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with existing PCB footprints for the 100-LQFP form factor. Cross-reference the datasheet for any recent production lifecycle notices or assembly location changes that may affect long-term availability.

Selection Notes

Select this component when a balance of moderate memory capacity and security features is required. The 512 kB Flash and 128 kB RAM suit complex firmware without excessive cost. The 120 MHz speed provides sufficient throughput for real-time control loops. Consider the 100-pin count for necessary I/O density in compact designs.

Part Context

This part belongs to the SAM4S family, designed for applications needing robust performance and security. It utilizes the ARM Cortex-M4 architecture, offering DSP instructions and a floating-point unit. The series is positioned between lower-end SAM3 models and higher-capacity SAM4E variants, targeting mid-range embedded solutions.

Replacement Considerations

Consult the official SAM4S datasheet for pin-compatible alternatives within the same series. Verify if other suffixes (e.g., AU, MU) offer identical electrical characteristics with different packaging options. Do not assume functional equivalence with SAM3 or SAM4L series parts due to architectural differences.