Microchip Technology ATSAM4LS4BA-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $22.76 | $22.76 |
| 15+ | $5.23 | $78.45 |
| 25+ | $5.12 | $128.00 |
| 50+ | $4.84 | $242.00 |
| 100+ | $4.27 | $427.00 |
| N+ | $0.85 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | SAM4L |
| Packaging | Tray | NULL |
| 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) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The Microchip ATSAM4LS4BA is a 32-bit microcontroller based on the ARM Cortex-M4 core at 48MHz. It offers 256KB of flash and 32KB of RAM in a compact 64-VFQFN package. Operating from 1.68V to 3.6V, it integrates Brown-out Detect/Reset, DMA, I2S, POR, PWM, and WDT. This MCU is optimized for low-power, high-performance applications in medical, IoT, and consumer electronics.
- Ultra-Low Voltage Operation: 1.68V minimum enables direct battery operation with minimal power loss.
- ARM Cortex-M4 Performance: DSP instructions accelerate signal processing tasks.
- Integrated I2S: Simplifies audio interface design without external components.
- Comprehensive Protection: Brown-out detect, POR, and WDT ensure reliable operation.
Portable Medical Devices
Low voltage operation down to 1.68V extends battery life in wearable health monitors, while the Cortex-M4 core handles signal processing.
Audio Processing Systems
The integrated I2S interface enables direct connection to audio codecs for voice recognition and audio playback devices.
IoT Sensor Nodes
With 256KB flash and low-power modes, it supports complex sensor fusion and wireless protocol stacks in battery-powered nodes.
Industrial Data Loggers
DMA and WDT ensure reliable data acquisition and storage in remote monitoring systems.
Consumer Electronics
The small 64-VFQFN package and rich peripherals make it suitable for smart home controllers and wearable gadgets.
Test and Measurement Equipment
High-speed PWM and precise analog features support portable multimeters and signal generators.
- Q: What core does the ATSAM4LS4BA use?
- A: It uses the ARM Cortex-M4 processor running at 48MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.68V to 3.6V.
- Q: How much flash and RAM are available?
- A: It has 256KB of flash and 32KB of RAM.
- Q: What package is this MCU offered in?
- A: It comes in a 64-VFQFN package with exposed pad.
- Q: What special features does it include?
- A: It includes Brown-out Detect/Reset, DMA, I2S, POR, PWM, and WDT.
- Q: What core does the ATSAM4LS4BA use?
- A: It uses the ARM Cortex-M4 processor running at 48MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.68V to 3.6V.
- Q: How much flash and RAM are available?
- A: It has 256KB of flash and 32KB of RAM.
- Q: What package is this MCU offered in?
- A: It comes in a 64-VFQFN package with exposed pad.
- Q: What special features does it include?
- A: It includes Brown-out Detect/Reset, DMA, I2S, POR, PWM, and WDT.

ATSAM4LS4BA-MU.pdf