ATSAM4LS4BA-UUR

Overview

The ATSAM4LS4BA-UUR is a 32-bit microcontroller from the SAM4L series, built on an ARM Cortex-M4 core. It features 256KB of in-system programmable flash memory and 32KB of SRAM. The device operates at a maximum frequency of 48MHz with a supply voltage range of 1.68V to 3.6V. It includes integrated analog peripherals such as fifteen 12-bit ADC channels and one 10-bit DAC. Connectivity options include USB Full-Speed, UART/USART, SPI, I2C, and IrDA interfaces.

Feature Summary

• Ultra-low power architecture supporting multiple sleep modes for battery-operated applications
• Integrated cryptographic engine for secure data processing
• High-performance 48MHz ARM Cortex-M4 processor with DSP instructions
• On-chip boot loader (SAM-BA) for simplified firmware updates

Applications

• Portable medical devices requiring low power consumption
• Industrial control systems with security requirements
• Smart home automation controllers
• Battery-powered sensor nodes

Procurement Notes

Verify the specific suffix UUR against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with existing board designs regarding pinout and voltage levels. Cross-reference the part number with official Microchip databases to avoid counterfeit components during sourcing.

Selection Notes

Select this component when a balance of moderate processing speed and ultra-low power consumption is required. The SAM4L series is suitable for applications where energy efficiency is critical but some computational overhead is needed. Compare with SAM4S series if higher clock speeds are necessary, or SAM4E series if Ethernet connectivity is required.

Part Context

This part belongs to the Atmel SAM4L family, designed specifically for low-power applications. It shares architectural similarities with other SAM4 variants but optimizes power management features. The SAM4L series targets markets demanding extended battery life without sacrificing significant processing capability.

Replacement Considerations

Check for direct substitutes within the SAM4L family with different memory sizes or packages. Verify pin-to-pin compatibility before considering alternatives from other manufacturers.