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ATSAM4LS4BA-MU
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Product Detailed Parameters
- Description：IC MCU 32BIT 256KB FLASH 64QFN
- 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：48
- 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 7x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：64-QFN (9x9)
- Package / Case：64-VFQFN Exposed Pad
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Overview
The ATSAM4LS4BA-MU is a 32-bit microcontroller based on the ARM Cortex-M4 processor, operating at frequencies up to 48MHz. It features picoPower technology for ultra-low power consumption and embeds 256KB of Flash memory with 0 wait-state capability up to 24MHz. The device includes 32KB of embedded SRAM and supports a single 1.68V to 3.6V power supply. Key peripherals include a USB 2.0 Device interface, four USARTs, one SPI, four TWI interfaces, a 16-channel 12-bit ADC, and a capacitive touch module.
Feature Summary
- Integrates picoPower technology to minimize active current consumption while maintaining high performance.
- Supports multiple low-power modes including WAIT, RETENTION, and BACKUP with fast wake-up capabilities.
- Includes an embedded hardware capacitive touch module for robust sensing of buttons, sliders, and wheels.
- Features a Peripheral Event System allowing direct peripheral-to-peripheral communication without CPU intervention.
Applications
- Battery-powered wearable devices requiring extended operational life
- Industrial control systems utilizing serial communication protocols
- Consumer electronics incorporating capacitive user interfaces
- Audio applications supported by dedicated audio bitstream DAC and I2S controller
Procurement Notes
Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for the QFN-64 configuration. Confirm that the selected variant meets all functional requirements for flash size and peripheral availability before finalizing procurement orders.
Selection Notes
Select this component when designing systems that require a balance between processing power and energy efficiency. The SAM4L series is suitable for applications needing USB connectivity alongside extensive analog and digital peripherals. Consider the available GPIO count and memory constraints relative to the specific application's software footprint and real-time processing demands.
Part Context
This device belongs to the SAM4L series of microcontrollers, which are designed for low-power applications using the ARM Cortex-M4 core. The series distinguishes itself from other families like SAM4S by offering optimized power management features and integrated capacitive touch capabilities, targeting markets where battery life and system integration are critical design factors.
Replacement Considerations
Consult official substitution lists for compatible parts within the SAM4L family. Verify pinout and peripheral configurations when considering alternatives to ensure seamless integration without hardware redesign.
