Manufacturer Part Number

ATSAM4LC2CA-CFUR

Description

32-bit ARM Cortex-M4 microcontroller with a single core running at 48MHz. It features 128KB of embedded flash memory and 32KB of RAM. The device includes multiple communication interfaces such as I2C, SPI, UART/USART, USB, IrDA, and LINbus. It comes in a compact 100-ball VFBGA package sized 7x7 mm. Designed for low power and high performance, it supports internal oscillators and has several built-in peripherals including brown-out detect/reset, DMA, I2S audio interface, LCD controller, power-on reset, PWM, and watchdog timer. Operating voltage ranges from 1.68V to 3.6V, and it can work within a temperature range of -40°C to 85°C. The package is surface mount type and compliant with RoHS3.

Specifications

Core Processor: ARM Cortex-M4

Core Size: 32-bit single-core

Speed: 48MHz

Program Memory: 128KB FLASH (128K x 8)

RAM Size: 32KB (32K x 8)

EEPROM: Not included

Communication Interfaces: I2C, SPI, UART/USART, USB, IrDA, LINbus

Peripherals: Brown-out detection/reset, DMA controller, I2S interface, LCD controller, power-on reset (POR), PWM channels, watchdog timer (WDT)

Analog Features: 15-channel 12-bit ADC, 1-channel 10-bit DAC

Operating Voltage: 1.68V to 3.6V

Operating Temperature: -40°C to 85°C

Package: 100-ball VFBGA (7x7 mm)

Mounting: Surface mount

Moisture Sensitivity Level (MSL): 3 (168 hours)

Compliance: RoHS3, REACH unaffected

Device Structure

Single-core 32-bit Cortex-M4 CPU integrated on a single silicon die with embedded flash and SRAM memories. The chip integrates multiple analog and digital peripherals to support mixed-signal applications. The package utilizes a fine-pitch VFBGA with 100 solder balls arranged for compact size and low profile surface mount assembly.

Performance Characteristics

Runs at up to 48MHz core frequency enabling efficient real-time control and processing. Flash memory size allows for moderate code complexity with fast internal access. RAM capacity supports multitasking and data buffering. Low operating voltage allows for low power consumption. Integrated DMA improves data transfer efficiency without CPU intervention. Built-in ADC and DAC enable sensor interfacing and analog output directly on chip.

Application Environments

Ideal for portable and battery-powered applications requiring low power consumption and moderate computation capability. Suitable for embedded control in industrial, consumer electronics, medical devices, and communication equipment. Its temperature range and robust peripherals make it appropriate for automotive and harsh environment monitoring.

Selection Guidelines

Choose this microcontroller when you need:

A mid-range 32-bit MCU with Cortex-M4 core at 48MHz

On-chip flash and RAM sufficient for embedded firmware and data buffers

Rich standard communication interfaces including USB and LINbus

Integrated analog converters for sensor data acquisition

Low power operation from 1.68V supply

Compact surface mount package to fit space-constrained designs

Usage Considerations

Ensure proper ESD precautions during handling due to fine-pitch BGA package. Take MSL 3 moisture sensitivity into account for storage and PCB assembly within 168 hours after unpackaging. Use appropriate clock settings for internal oscillator. Program memory space and peripheral availability should be confirmed against application requirements before final selection. Employ recommended power sequencing and brown-out reset circuits to ensure reliability.

Potential Equivalent/Replacement Models

Equivalent or alternative models in the Microchip SAM4L series include:

ATSAM4LC4CA (256KB Flash, similar peripheral set, larger flash)

ATSAM4LC8CA (512KB Flash, same core with more memory resources)

ATSAM4S series (similar Cortex-M4 MCUs with different peripheral sets)

If a model with identical pinout and memory is strictly required, please contact Ariat-Tech sales team via our website for detailed consulting and availability of potential substitutes.

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