ATSAM3N1AB-AU The ATSAM3N1AB-AU is a 32-bit ARM Cortex-M3 microcontroller from Microchip Technology. It integrates 64KB flash memory, 8KB SRAM, and 34 I/O pins in a 48-LQFP surface-mount package.
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ATSAM3N1AB-AU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The ATSAM3N1AB-AU is a 32-bit ARM Cortex-M3 microcontroller from Microchip Technology. It integrates 64KB flash memory, 8KB SRAM, and 34 I/O pins in a 48-LQFP surface-mount package.
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ATSAM3N1AB-AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Peripherals
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ATSAM3N1AB-AU Description

Short technical summary and product information.

The ATSAM3N1AB-AU is a 32-bit single-core microcontroller based on the ARM Cortex-M3 processor, running at 48MHz. It includes 64KB of flash program memory, 8KB of SRAM, 34 digital I/O pins, and an 8-channel 10-bit ADC. The device operates from a 1.62V to 3.6V supply and is specified for -40°C to 85°C ambient temperature.

 

The MCU provides peripherals such as brown-out detect/reset, DMA, POR, PWM, and watchdog timer. Connectivity options include I²C, IrDA, SPI, and UART/USART, making it suitable for embedded control and communication applications. An internal oscillator reduces the need for external clock components.

 

The ATSAM3N1AB-AU is supplied in a 48-LQFP (7x7mm) surface-mount package, enabling compact PCB layouts and automated assembly.

ATSAM3N1AB-AU Quick Information

Product Type: Microcontroller
Series: SAM3N
Canonical Name: Microchip Technology ATSAM3N1AB-AU - 32-bit ARM Cortex-M3 Microcontroller, 64KB Flash, 48-LQFP
Subcategory: ARM Cortex-M3 Microcontroller

ATSAM3N1AB-AU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ATSAM3N1AB-AU Features

  • ARM Cortex-M3 32-bit processor core.
  • 48MHz clock with internal oscillator.
  • 64KB flash and 8KB SRAM memory.
  • Provides 34 digital I/O pins.
  • Surface-mount 48-LQFP package for PCB assembly.

ATSAM3N1AB-AU Applications

  • PWM outputs suit motor control and dimming.
  • 10-bit ADC channels enable analog sensor reading.
  • UART, SPI, and I²C handle system communication.
  • IrDA connectivity supports optical data transfer.

ATSAM3N1AB-AU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range of the ATSAM3N1AB-AU?

The supply voltage range is 1.62V to 3.6V.

What package does the ATSAM3N1AB-AU come in?

It is available in a 48-LQFP (7x7) surface-mount package.

What operating temperature range is supported?

It operates from -40°C to 85°C ambient temperature.

Is the ATSAM3N1AB-AU RoHS compliant?

The part is reported as RoHS3 compliant, but this status has not been independently verified.

What processor core is used in the ATSAM3N1AB-AU?

It uses an ARM Cortex-M3 32-bit single-core processor.

How much program and data memory does the ATSAM3N1AB-AU have?

It has 64KB flash memory and 8KB SRAM.

Which communication interfaces does the ATSAM3N1AB-AU support?

It supports I²C, IrDA, SPI, and UART/USART.

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