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ATSAM4LS2CA-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 128KB FLASH 100TQFP
- Series：SAM4L
- Mfr：Microchip Technology
- Package：Tray
- 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, POR, PWM, WDT
- Number of I/O：80
- 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-TQFP (14x14)
- Package / Case：100-TQFP
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Overview
The ATSAM4LS2CA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at frequencies up to 48MHz. It features 128KB of embedded Flash memory and 32KB of SRAM. The device supports a single power supply ranging from 1.68V to 3.6V and includes a 16-channel 12-bit ADC, a 10-bit DAC, USB 2.0 Device interface, and multiple communication peripherals including USART, SPI, and TWI.
Feature Summary
- Integrates picoPower technology for ultra-low power consumption with configurable voltage scaling.
- Includes an LCD controller supporting passive displays with up to 40 segments and 4 common terminals.
- Features a capacitive touch module (CATB) capable of handling buttons, sliders, and wheels.
- Supports direct peripheral-to-peripheral communication via the Peripheral Event System.
Applications
- Battery-powered wearable devices requiring low active current
- Industrial control systems utilizing segment LCD interfaces
- Consumer electronics incorporating capacitive touch controls
- Audio applications using I2S controllers and bitstream DACs
Procurement Notes
Verify the specific package variant against the datasheet pinout diagrams to ensure compatibility with the target PCB footprint. Confirm that the selected component matches the required memory configuration and peripheral availability for the intended application design.
Selection Notes
Select this model when a balance of processing performance and energy efficiency is required. The SAM4L series is suitable for applications needing USB connectivity and analog signal processing without the complexity of higher-end families.
Part Context
This component belongs to the SAM4L series, which focuses on low-power applications. Unlike the SAM4C or SAM4S series, it lacks the AESA hardware security module but provides dedicated LCD and capacitive touch capabilities optimized for portable devices.
Replacement Considerations
ATSAM4LC2CA-AU offers similar specifications but includes the AESA security module and LCD controller. ATSAMD21G18A is a lower-performance alternative in the same package family.
