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ATSAM4LC2CA-CFU
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLSH 100VFBGA
- Series：SAM4L
- Mfr：Atmel
- Package：Bulk
- Core Processor：ARM® Cortex®-M4
- Core Size：32-Bit Single-Core
- Speed：48MHz
- Connectivity：I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals：Brown-out Detect/Reset, DMA, I2S, LCD, POR, PWM, WDT
- Number of I/O：75
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：32K x 8
- Voltage - Supply (Vcc/Vdd)：1.68V ~ 3.6V
- Data Converters：A/D 15x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：100-VFBGA (7x7)
- Package / Case：100-VFBGA
- Grade：-
- Qualification：-
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Overview
The ATSAM4LC2CA-CFU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 48MHz. It features 128KB of flash memory and 16KB of SRAM. The device supports a supply voltage range of 1.68V to 3.6V and includes integrated peripherals such as USB, UART, SPI, I2C, and multiple ADC channels. It is housed in a 48-pin QFN package.
Feature Summary
- Ultra-low power consumption with sleepwalking capabilities for battery-operated applications
- Integrated SAM-BA bootloader for simplified firmware updates via USB or UART
- High-performance 48MHz ARM Cortex-M4 core with DSP instructions
- Comprehensive analog interface including multiple 12-bit ADCs
Applications
- Battery-powered portable devices requiring extended standby times
- Industrial control systems utilizing low-power sensor interfaces
- Consumer electronics with USB connectivity requirements
- Wearable technology and smart home sensors
Procurement Notes
Verify the specific suffix CFU against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for the 48-pin QFN configuration. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Confirm that the selected variant meets all environmental specifications for the intended application environment.
Selection Notes
Select this component when a balance of moderate flash capacity and ultra-low power performance is required. The 48MHz speed suits applications needing efficient processing without high energy drain. Consider the available I/O count and peripheral set, particularly USB and ADCs, against system interface needs. Evaluate the QFN package suitability for space-constrained designs compared to TQFP alternatives.
Part Context
This MCU belongs to the SAM4L series, designed specifically for low-power applications. It shares architectural similarities with other SAM4L variants but offers distinct memory and pin configurations. The series is known for its ability to maintain functionality during sleep modes, making it suitable for always-on sensing nodes.
Replacement Considerations
Direct substitutes within the SAM4L family include ATSAM4LC2CB-AU or ATSAM4LC2CA-AU, depending on package preference. Verify pin-to-pin compatibility and software register alignment before substitution. Higher-capacity variants like ATSAM4LS may require code adjustments due to memory mapping differences.
