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ATSAM4LC4AA-AU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 48TQFP
- 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：27
- 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 3x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：48-TQFP (7x7)
- Package / Case：48-TQFP
- Grade：-
- Qualification：-
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Overview
The ATSAM4LC4AA-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 is housed in a 48-TQFP package with 75 available I/O pins. Power supply ranges from 1.68V to 3.6V, supporting an industrial temperature range of -40°C to +85°C. Integrated peripherals include three 12-bit ADCs, one 10-bit DAC, USB Full-Speed interface, and standard communication protocols such as SPI, I2C, UART, USART, IrDA, and LINbus.
Feature Summary
- Integrates hardware cryptographic acceleration for secure data processing
- Supports low-power operation modes including sleep, wait, retention, and backup states
- Includes built-in LCD controller for direct display driving capabilities
Applications
- Battery-powered portable devices requiring extended operational life
- Industrial control systems utilizing LINbus or standard serial interfaces
- Consumer electronics featuring graphical liquid crystal displays
- Secure embedded applications requiring hardware-level encryption
Procurement Notes
Verify the specific suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing board layouts regarding the 48-TQFP pinout. Confirm that the selected development tools support the SAM4L series architecture for firmware deployment.
Selection Notes
Select this component when a balance of moderate flash capacity and low power consumption is required. The inclusion of an LCD controller distinguishes it from other SAM4L variants lacking display drivers. Verify that the 48MHz clock speed meets real-time processing requirements for the intended application logic.
Part Context
This unit belongs to the SAM4L family of ultra-low-power microcontrollers manufactured by Microchip Technology (formerly Atmel). The series targets energy-efficient applications where processing capability must be maintained during active use while minimizing current draw during idle periods through advanced power management features.
Replacement Considerations
Consult official substitution lists for equivalent packages within the SAM4L family. Verify pin-to-pin compatibility before replacing units in existing designs.
