Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > ATSAM3S4AA-MU

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ARM MCU, SAM3S Series, SAM32 Family SAM 3S Series Microcontrollers, ARM Cortex-M3, 32bit, 64 MHz

  • Package/Case :
  • VQFN-48
  • Product Categories :
  • ARM Microcontrollers - MCU
  • RoHs Status:
  • Green
  • In-stock:
  • 1294


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ATSAM3S4AA-MU Product Details

A member of the Atmel® SAM3S series microcontrollers based on the high-performance 32-bit ARM® Cortex™-M3 RISC processor. It operates at a maximum speed of 64MHz and features 256KB of flash and 48KB of SRAM. The extensive peripheral set includes a FS USB device port with embedded transceiver, USART, two UARTs, two TWIs, two SPIs, I2S, PWM timer, three 16-bit timers, RTC, eight 12-bit ADCs and an analog comparator. The QTouch® library offers an easy way to implement buttons, wheels and sliders. The parallel data capture mode on the PIOs collects data from external devices not compliant with standard memory read protocols, such as low-cost image sensors. The data is then transferred to memory by DMA offloading the CPU. The device operates from 1.62V to 3.6V, is available in 48-pin QFP and QFN packages, and is pin-to-pin compatible with the SAM3N4A.



  • ARM Cortex-M3 revision 2.0 running at up to 64MHz
  • Thumb®-2 instruction set
  • Memory protection unit (MPU)
  • Embedded voltage regulator for single supply operation
  • Power-on-reset (POR), brown-out detector (BOD) and watchdog for safe reset
  • 3 to 20MHz Resonator oscillators
  • High precision factory trimmed internal RC oscillator with 4MHz default frequency
  • Slow clock internal RC oscillator as permanent low-power mode device clock
  • Two PLLs up to 130MHz for device clock and for USB
  • Temperature sensor
  • Two 2-wire UARTs
  • 32-bit Real-time timer and RTC with calendar and alarm features
  • One 2-channel 12-bit 1MSPS DAC
  • One analog comparator with flexible input selection, selectable input hysteresis
  • 32-bit Cyclic redundancy check calculation unit (CRCCU)
  • Write protected registers

Technical Parameters

  • Core
  • ARM Cortex M3
  • Data Bus Width
  • 32 bit
  • Maximum Clock Frequency
  • 64 MHz
  • Program Memory Size
  • 256 KB
  • Data RAM Size
  • 48 KB
  • On Chip ADC
  • Yes
  • Operating Supply Voltage
  • 1.8 V, 3.3 V
  • Maximum Operating Temperature
  • + 85 C
  • Package / Case
  • QFN-48
  • Mounting Style
  • A/D Bit Size
  • 12 bit
  • A/D Channels Available
  • 8
  • Data ROM Size
  • 16 KB
  • Interface Type
  • 2-Wire, RS-485, SPI, UART
  • Minimum Operating Temperature
  • - 40 C
  • Number of Programmable I/Os
  • 34
  • Number of Timers
  • 6
  • On Chip DAC
  • Yes
  • Processor Series
  • AT91SAM3S
  • Program Memory Type
  • Flash
  • Factory Pack Quantity
  • 260

ATSAM3S4AA-MU Documents

  • ATSAM3S4A Technical Documentation of Application Note

ATSAM3S4AA-MU Related Products

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Estimated Delivery Time: Oct 01 - Oct 06 days (choose Expedited at checkout).

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We provide high quality products, thoughtful service and after sale guarantee

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    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that ATSAM3S4AA-MU is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their ATSAM3S4AA-MU devices; we pay more attention to the channels and quality of ATSAM3S4AA-MU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ATSAM3S4AA-MU chips? Including MICROCHIP original factory information, ARM Microcontrollers - MCU application, ATSAM3S4AA-MU pictures?
You can use Jotrin's intelligent search engine, or filter by SAM3 Products category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's ATSAM3S4AA-MU price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ATSAM3S4AA-MU, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of ATSAM3S4AA-MU?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ATSAM3S4AAMU we delivered, we will accept the replacement or return of the ATSAM3S4AA-MU only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ATSAM3S4AA-MU.
(3)The ATSAM3S4AA-MU is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as ATSAM3S4AA-MU datasheet pdf, ATSAM3S4A pin diagram?
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Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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