ATSAM4LS2BA-AUR

Overview

The ATSAM4LS2BA-AUR is a 32-bit ARM Cortex-M4 microcontroller from the SAM4L series, operating at up to 48MHz. It features 128KB of embedded Flash and 32KB of SRAM within a 64-lead TQFP package. The device supports USB 2.0 Device functionality, includes picoPower technology for ultra-low power consumption, and offers peripherals such as TWI, SPI, USART, ADC, DAC, and capacitive touch modules.

Feature Summary

• Integrates picoPower technology for ultra-low active current consumption with configurable voltage scaling.
• Supports multiple low-power modes including WAIT, RETENTION, and BACKUP with fast wake-up capabilities.
• Includes an on-chip Advanced Encryption Standard (AES) module for secure data processing.
• Features a Peripheral Event System allowing direct peripheral-to-peripheral communication without CPU intervention.

Applications

• Battery-powered consumer electronics requiring extended operational life
• Secure IoT devices utilizing hardware encryption
• Industrial control systems needing reliable real-time performance
• Portable medical equipment demanding low power and high precision

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type, temperature range, and tape-and-reel configuration. Ensure compatibility with existing PCB footprints and design constraints before finalizing procurement decisions.

Selection Notes

Select this component when application requirements align with the SAM4LS sub-series specifications, specifically regarding memory size and peripheral availability. Consider the trade-off between functional density and power efficiency inherent in the picoPower architecture for optimal system design.

Part Context

This part belongs to the SAM4L family, designed for low-power applications using the ARM Cortex-M4 core. It distinguishes itself from other SAM4 variants by its focus on energy efficiency while maintaining sufficient processing power for complex tasks in constrained environments.

Replacement Considerations

Consult official Microchip cross-reference guides for verified substitutes. Ensure any replacement maintains identical pinout, memory capacity, and peripheral set to avoid redesign efforts.

FAQ

Does the ATSAM4LS2BA-AUR support USB Host functionality?

No, the SAM4LS sub-series supports only USB Device functionality, unlike the SAM4LC which includes both Device and Embedded Host capabilities.

What is the maximum operating frequency of this microcontroller?

The device operates at a maximum frequency of 48MHz, optimized for low-power performance.