ATSAM4LC4AA-MU

Overview

The ATSAM4LC4AA-MU is a microcontroller from the SAM4L series, featuring an ARM Cortex-M4 core operating at up to 48MHz. It includes 256 kB of Flash memory and 32 kB of SRAM. The device supports a supply voltage range of 1.68V to 3.6V and operates within a temperature range of -40°C to +85°C. It utilizes a 48-pin QFN package and incorporates picoPower technology for low power consumption.

Feature Summary

• Integrates picoPower technology for ultra-low power consumption with configurable voltage scaling.
• Includes a segment LCD controller supporting passive displays with integrated buffers.
• Features an embedded hardware capacitive touch module (QTouch) for sensor detection.
• Provides a 128-bit Advanced Encryption System (AES) module for data security.

Applications

• Battery-powered wearable devices
• Industrial control systems requiring secure communication
• Smart home appliances with display interfaces
• Medical monitoring equipment

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to ensure correct package type and temperature rating. Confirm that the component meets RoHS compliance requirements for your region. Check for any recent Product Change Notices regarding marking or packaging updates before finalizing procurement.

Selection Notes

Select this part when a balance of processing performance and low power consumption is required. The inclusion of AES encryption makes it suitable for secure applications. Ensure the design accommodates the 48-pin QFN footprint and verify that the peripheral count meets system interface needs.

Part Context

This component belongs to the SAM4L family, designed for low-power applications using ARM Cortex-M4 cores. The 'C' in the model indicates the presence of LCD and AES features, distinguishing it from the 'S' variant which lacks these peripherals. The 'A' suffix typically denotes the standard industrial temperature grade.

Replacement Considerations

ATSAM4LC4BA-MU

FAQ

Does the ATSAM4LC4AA-MU support USB host functionality?

Yes, the ATSAM4LC series includes a USB device and embedded host interface capable of 12 Mbps operation.

What is the maximum active current consumption?

The device achieves active current consumption down to 90 µA/MHz with configurable voltage scaling enabled.