ATSAM4LC2AA-MUR

Overview

The ATSAM4LC2AA-MUR is a microcontroller from the SAM4L series, featuring an ARM Cortex-M4 core operating at up to 48MHz. It includes 128KB of embedded Flash memory and 32KB of SRAM. The device supports a single power supply ranging from 1.68V to 3.6V. Key peripherals include a segment LCD controller, USB 2.0 device and embedded host interface, capacitive touch module, and various communication interfaces such as USART, SPI, and I2C.

Feature Summary

• Integrates picoPower technology for ultra-low power consumption with configurable voltage scaling.
• Includes a dedicated segment LCD controller supporting passive displays with integrated buffers.
• Features an embedded hardware capacitive touch module for autonomous sensing.
• Supports direct peripheral-to-peripheral communication via the Peripheral Event System.

Applications

• Battery-powered wearable devices requiring low active current
• Applications utilizing monochrome passive liquid crystal displays
• Systems incorporating capacitive touch user interfaces
• Portable devices needing USB connectivity in constrained power environments

Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure the selected variant matches the required pin count and peripheral configuration for the target application design.

Selection Notes

Select this component when a balance of moderate memory capacity and advanced low-power features is required. Consider the inclusion of the LCD controller and AESA if security or display management are primary design constraints compared to other SAM4L variants.

Part Context

This part belongs to the SAM4L family, which distinguishes itself by integrating both LCD controllers and cryptographic accelerators (AESA). Unlike the SAM4LS sub-series, the LC variant supports these specific multimedia and security peripherals while maintaining the same core processor architecture.

Replacement Considerations

ATSAM4LC2AB-MUR

FAQ

Does the ATSAM4LC2AA-MUR support USB Host functionality?

Yes, the ATSAM4LC series integrates a full-speed USB 2.0 interface that supports both Device and Embedded Host modes.

What is the maximum frequency for the internal RC oscillator?

The device features a high-speed internal RC oscillator capable of running at 80MHz.