ATSAM4LS8AA-MUR

Overview

The ATSAM4LS8AA-MUR is a microcontroller from the Microchip SAM4L series, featuring an ARM Cortex-M4 core operating at up to 48MHz. It integrates 512KB of embedded Flash and 64KB of SRAM within a 64-lead QFN package. The device supports single-supply operation between 1.68V and 3.6V. Key peripherals include a USB 2.0 device interface, four USARTs, four TWI interfaces, one SPI, and a 16-channel 12-bit ADC. It incorporates picoPower technology for ultra-low power consumption across various sleep modes.

Feature Summary

• Integrates picoPower technology enabling active current consumption down to 90 µA/MHz with configurable voltage scaling.
• Includes a full-speed USB 2.0 device and embedded host interface supporting multiple classes simultaneously.
• Features a capacitive touch module (CATB) capable of handling up to 32 sensors with autonomous detection capabilities.
• Supports direct peripheral-to-peripheral communication via the Peripheral Event System without CPU intervention.

Applications

• Battery-powered portable devices requiring extended operational life
• Applications utilizing capacitive touch user interfaces
• Systems requiring low-power USB connectivity
• Wearable electronics with strict power constraints

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with required supply voltages and pin configurations. Cross-reference datasheet revisions for any functional updates or errata before finalizing procurement specifications.

Selection Notes

Select this component when high performance combined with ultra-low power consumption is critical. The SAM4L series offers flexible memory options and extensive peripheral sets suitable for complex embedded applications. Consider the available packages and I/O counts relative to system requirements.

Part Context

This part belongs to the SAM4L family, designed for low-power applications. It shares architectural similarities with other SAM4L variants but differs in memory size and peripheral availability. The series targets cost-sensitive markets while maintaining robust feature sets for modern embedded systems.

Replacement Considerations

Consult official substitution lists for compatible parts within the SAM4L family. Verify pinout and electrical characteristics match before replacing components in existing designs.

FAQ

Does the ATSAM4LS8AA-MUR support segment LCD controllers?

No, the ATSAM4LS sub-series does not include a segment LCD controller; this feature is available in the ATSAM4LC sub-series.

What is the maximum operating frequency of the core?

The ARM Cortex-M4 core operates at frequencies up to 48MHz.