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ATSAM4LS4CA-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 100TQFP
- 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, POR, PWM, WDT
- Number of I/O：80
- Program Memory Size：256KB (256K 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
- Grade：-
- Qualification：-
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Overview
The ATSAM4LS4CA-AU is a 32-bit microcontroller based on the ARM Cortex-M4 core, operating at a maximum frequency of 48MHz. It features 256KB of in-system programmable flash memory and 32KB of SRAM. The device supports a supply voltage range of 1.68V to 3.6V and includes integrated analog peripherals such as fifteen 12-bit ADC channels and one 10-bit DAC. Connectivity options include USB, I2C, SPI, UART/USART, IrDA, and LINbus interfaces. It is housed in a 100-TQFP package with an operating temperature range of -40°C to 85°C.
Feature Summary
- Integrates ARM Cortex-M4 processor with single-cycle multiplication and hardware divide capabilities for efficient signal processing.
- Provides multiple low-power modes including Sleep, Wait, Retention, and Backup to optimize energy consumption in battery-operated applications.
- Includes comprehensive connectivity suite supporting full-speed USB, standard serial protocols, and local interconnection network bus.
- Features built-in cryptographic accelerators and secure boot functionality to protect firmware integrity and data confidentiality.
Applications
- Battery-powered portable devices requiring extended operational life through advanced power management.
- Industrial control systems utilizing LINbus and robust communication interfaces.
- Consumer electronics incorporating USB connectivity and high-resolution analog sensing.
- Secure embedded applications leveraging hardware-based encryption and authentication features.
Procurement Notes
Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 100-TQFP configuration. Cross-reference datasheet revisions to validate peripheral availability and electrical characteristics prior to final design implementation.
Selection Notes
Select this component when a balance of moderate processing speed and low power consumption is required. The 48MHz clock speed suits applications not demanding high-frequency computation. Verify that the 256KB flash capacity meets firmware storage needs. Confirm that the available GPIO count and peripheral set align with system interface requirements.
Part Context
This part belongs to the SAM4L family, designed specifically for low-power applications within the broader SAM4 series. Unlike the higher-performance SAM4S or SAM4C variants, the SAM4L prioritizes energy efficiency over raw processing speed. It shares architectural similarities with other Cortex-M4 devices but offers distinct power management features tailored for portable and industrial sensor nodes.
Replacement Considerations
Consult official substitution guides for pin-compatible alternatives within the SAM4L series. Verify functional equivalence regarding peripheral sets and memory sizes before considering cross-family replacements.
