ATSAM4S2AB-ANR

Overview

The ATSAM4S2AB-ANR is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 120MHz. It features 64KB of flash memory and 16KB of SRAM. The device supports a supply voltage range of 1.62V to 3.6V and includes an internal oscillator. Connectivity options include I2C, SPI, SSC, UART/USART, and USB interfaces. It offers 8-channel 12-bit ADCs and peripherals such as DMA, PWM, and watchdog timers. The component is housed in a 48-pin LQFP package and operates within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates an ARM Cortex-M4 processor with single-cycle multiplication and hardware divide capabilities for efficient signal processing.
• Includes built-in USB 2.0 Full-Speed Device interface supporting standard communication protocols.
• Provides flexible connectivity through multiple serial communication interfaces including SPI, SSC, and USART.
• Features integrated analog-to-digital converters for precise sensor data acquisition.

Applications

• USB-enabled peripheral devices
• Industrial control systems requiring real-time processing
• Consumer electronics with embedded connectivity
• Motor control applications

Procurement Notes

Verify the specific suffix 'ANR' against the official Microchip datasheet to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 48-LQFP variant. Cross-reference part numbers with current production status notices to avoid obsolete components. Confirm RoHS compliance requirements match project specifications before finalizing procurement orders.

Selection Notes

Select this component when a balance of moderate flash capacity and USB connectivity is required within a compact footprint. Compare against the ATSAM4S2AA series if different packaging or pinout configurations are needed. Evaluate power consumption profiles against application requirements, noting the internal oscillator limitations compared to external crystal solutions. Consider the 120MHz performance ceiling for algorithm complexity.

Part Context

This microcontroller belongs to the SAM4S family, designed for cost-sensitive applications requiring ARM Cortex-M4 performance. It serves as an upgrade path from older AVR or Cortex-M3 based solutions. The series emphasizes low power consumption and rich peripheral sets suitable for embedded control tasks. It integrates directly with Microchip's software frameworks for rapid development cycles.

Replacement Considerations

Consult the official SAM4S Series Datasheet for qualified substitute part numbers. Verify pin-to-pin compatibility and electrical parameter equivalence before substitution. Check for any pending Product Change Notices affecting assembly locations or marking changes.