ATSAM4LC2BA-MU

Overview

The ATSAM4LC2BA-MU is a microcontroller from the SAM4L series, featuring an ARM Cortex-M4 core with a 2 KByte cache operating at up to 48 MHz. It integrates 128 KBytes of Flash memory and 32 KBytes of SRAM within a 64-pin QFN package. The device supports a supply voltage range of 1.62 V to 1.98 V and operates between -40°C and +85°C. Key peripherals include a 12-bit ADC with 16 channels, three timers/counters, and interfaces such as I2C, SPI, and USART.

Feature Summary

• Integrates an ARM Cortex-M4 processor with DSP instruction set support for efficient signal processing tasks.
• Includes embedded cryptographic acceleration capabilities to secure data transmission and storage.
• Features ultra-low power consumption modes including sleep and backup states for battery-operated applications.

Applications

• Smart home devices requiring low-power wireless connectivity
• Industrial sensor nodes with limited energy resources
• Portable medical equipment needing secure data handling

Procurement Notes

Verify the specific suffix 'MU' confirms the 64-pin QFN package and industrial temperature grade. Ensure compatibility with the 1.62 V to 1.98 V supply voltage range for your design. Check for RoHS compliance documentation if required by your manufacturing standards. Confirm availability status as product lifecycles may change.

Selection Notes

Select this component when a balance of moderate processing power and strict power constraints is needed. The 48 MHz speed suits simple control loops but may require faster cores for complex algorithms. The integrated crypto engine reduces external component count compared to non-crypto variants. Consider pin count requirements as the 64-pin limit restricts I/O expansion.

Part Context

This part belongs to the Atmel SAM4L family, designed for low-power applications. The SAM4L series bridges the gap between high-performance SAM4S/C families and lower-end SAMD/SAM4E lines. It targets markets where energy efficiency is critical without sacrificing significant computational capability.

Replacement Considerations

Consult official Microchip cross-reference tools for verified substitutes. Generic replacements may lack the specific cryptographic features or exact pinout compatibility. Verify that any alternative maintains the same voltage and thermal specifications.