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Product attributes Property Value
Manufacturer Microchip Technology
Product Series SAM3N
Packaging Tray |
Core Processor ARM® Cortex®-M3
Core Size 32-Bit Single-Core
Speed 48MHz
Connectivity I2C, IrDA, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number of I/O 34
Program Memory Size 64KB (64K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 8K x 8
Voltage - Supply (Vcc/Vdd) 1.62V ~ 3.6V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-QFN (7x7)
Package / Case 48-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATSAM3N1AB-MU is a 48MHz ARM Cortex-M3 MCU with 64KB flash and 8KB SRAM. Operating from 1.62V to 3.6V, it integrates DMA, BOD, POR, PWM, and WDT in a 48-VFQFN package, rated for -40°C to 85°C.

  • ARM Cortex-M3 performance: 32-bit processing at 48MHz for complex tasks.
  • DMA controller: reduces CPU overhead for data transfers.
  • Low 1.62V operation: ideal for energy-efficient designs.
  • Compact 48-QFN: saves PCB area while providing 32-bit power.

Industrial Automation

Cortex-M3 at 48MHz with DMA handles real-time control loops efficiently.

Smart Grid Devices

1.62V low-voltage operation supports energy-harvesting power sources.

Medical Devices

Deterministic interrupt handling suits infusion pumps and patient monitors.

Building Security

64KB flash supports encryption libraries for access control panels.

Robotics

PWM channels drive servo motors with precise timing.

IoT Gateways

DMA offloads sensor data collection, freeing CPU for protocol stacks.

Q: What core does it use?
A: ARM Cortex-M3 at 48MHz.
Q: What is the voltage range?
A: 1.62V to 3.6V.
Q: How much flash and RAM?
A: 64KB flash and 8KB SRAM.
Q: What package?
A: 48-VFQFN exposed pad.
Q: Does it support DMA?
A: Yes, includes DMA, BOD, POR, PWM, WDT.
Base Product Number : ATSAM3N1AB-MU
32-bit MCU 48MHz 64KB Flash 8KB RAM ARM Cortex-M3 DMA Industrial IoT Microchip PWM QFN-48
Q: What core does it use?
A: ARM Cortex-M3 at 48MHz.
Q: What is the voltage range?
A: 1.62V to 3.6V.
Q: How much flash and RAM?
A: 64KB flash and 8KB SRAM.
Q: What package?
A: 48-VFQFN exposed pad.
Q: Does it support DMA?
A: Yes, includes DMA, BOD, POR, PWM, WDT.