Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > ATSAM3X8EA-CU

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ARM MCU, SAM3X Series, SAM32 Family SAM 3X Series Microcontrollers, ARM Cortex-M3, 32bit, 84 MHz

  • Package/Case :
  • LFBGA-144
  • Product Categories :
  • ARM Microcontrollers - MCU
  • RoHs Status:
  • Green
  • In-stock:
  • 1840


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ATSAM3X8EA-CU Product Details

Based on the ARM® Cortex®-M3 processor, the Microchip'sSAM3X8E runs at 84MHz and features 512KB of flash memory in 2 x 256KB banks and 100KB of SRAM in 64KB +32KB banks, with an additional 4KB as NFC (NAND Flash controller) SRAM.

Its highly-integrated peripheral set for connectivity and communication includes Ethernet, dual CAN, High Speed USB MiniHost and device with on-chip PHY, high-speed SD/SDIO/MMC, and multiple USARTs, SPIs, TWIs (I2C), and one I2S.

The SAM3X8E also features a 12-bit ADC/DAC, temperature sensor, 32-bit timers, PWM timer and RTC. The 16-bit external bus interface supports SRAM, PSRAM, NOR and NAND Flash with error code correction.

The Microchip QTouch Library is available for the SAM3X8E for easy implementation of buttons, sliders and wheels.

The device operates from 1.62V to 3.6V and is available in 144-pin QFP and BGA packages.



    Microcontroller Features


    • ARM Cortex-M3 revision 2.0 running at up to 84 MHz

    • Memory Protection Unit (MPU)

    • 24-bit SysTick Counter

    • Thumb®-2 instruction set

    • Nested Vector Interrupt Controller


    • 2 x 256Kbytes embedded Flash, 128-bit wide access, memory accelerator, dual bank

    • 100(64+32) Kbytes embedded SRAM with dual banks

    • 16 Kbytes ROM with embedded bootloader routines (UART, USB) and IAP routines

    • Static Memory Controller (SMC): SRAM, NOR, NAND support.

    • NAND Flash controller with 4 Kbytes RAM buffer and ECC

    • External Bus Interface - 16 bits, 8 chip selects, 23-bit address


    • Embedded voltage regulator for single-supply operation

    • POR, BOD and Watchdog for safe reset

    • Quartz or resonator oscillators: 3 to 20 MHz main and optional low power 32.768 kHz for RTC or device clock

    • High precision 8/12 MHz factory trimmed internal RC oscillator with 4 MHz Default Frequency for fast device startup

    • Slow Clock Internal RC oscillator as permanent clock for device clock in low power mode

    • One PLL for device clock and one dedicated PLL for USB 2.0 High Speed Mini Host/Device

    • Temperature Sensor

    • 17 peripheral DMA (PDC) channels and 6-channel central DMA plus dedicated DMA for High-Speed USB Mini Host/Device and Ethernet MAC

    Low Power modes

    • Sleep, Wait and Backup modes, down to 2.5 μA in Backup mode with RTC, RTT, and GPBR


    • 144-lead LQFP – 20 x 20 mm, pitch 0.5 mm

    • 144-ball LFBGA – 10 x 10 mm, pitch 0.8 mm

    Temperature operating range

    • Industrial (-40° C to +85° C)
    Peripheral Features

    • USB 2.0 Device/Mini Host: 480 Mbps, 4 Kbyte FIFO, up to 10 bidirectional Endpoints, dedicated DMA

    • 4 USARTs (ISO7816, IrDA®, Flow Control, SPI, Manchester and LIN support) and one UART

    • 2 TWI (I2C compatible), up to 6 SPIs, 1 SSC (I2S), 1 HSMCI (SDIO/SD/MMC) with up to 2 slots

    • 9-channel 32-bit Timer Counter (TC) for capture, compare and PWM mode, Quadrature Decoder Logic and 2-bit Gray Up/Down Counter for Stepper Motor

    • 32-bit low-power Real-time Timer (RTT) and low-power Real-time Clock (RTC) with calendar and alarm features

    • 256-bit General Purpose Backup Registers (GPBR)

    • Ethernet MAC 10/100 (EMAC - MII/RMII) with dedicated DMA

    • 2 CAN Controllers with 8 Mailboxes

    • True Random Number Generator (TRNG)


    • 103 I/O lines with external interrupt capability (edge or level sensitivity), debouncing, glitch filtering and on-die Series Resistor Termination

    • Six 32-bit Parallel Input/Output Controllers

    Analog Features

    • 16-channel 12-bit 1 msps ADC with differential input mode and programmable gain stage

    • 2-channel 12-bit 1 msps DAC

    Debugger Development Support

    • Serial Wire/JTAG Debug Port(SWJ-DP)

    • Debug access to all memories and registers in the system, including Cortex-M4 register bank when the core is running, halted, or held in reset.

    • Serial Wire Debug Port (SW-DP) and Serial Wire JTAG Debug Port (SWJ-DP) debug access.

    • Flash Patch and Breakpoint (FPB) unit for implementing breakpoints and code patches.

    • Data Watchpoint and Trace (DWT) unit for implementing watchpoints, data tracing, and system profiling.

    • Instrumentation Trace Macrocell (ITM) for support of printf style debugging.

    • IEEE1149.1 JTAG Boundary-scan on all digital pins.

    Integrated Software Libraries and Tools

    • ASF-Atmel software Framework – SAM software development framework

    • Integrated in the Atmel Studio IDE with a graphical user interface or available as standalone for GCC, IAR compilers.

    • DMA support, Interrupt handlers Driver support

    • USB, TCP/IP, Wi-Fi and Bluetooth, Numerous USB classes, DHCP and Wi-Fi encryption Stacks

    • RTOS integration, FreeRTOS is a core component

Technical Parameters

  • Core
  • ARM Cortex M3
  • Data Bus Width
  • 32 bit
  • Maximum Clock Frequency
  • 84 MHz
  • Program Memory Size
  • 512 KB
  • Data RAM Size
  • 100 KB
  • On Chip ADC
  • Yes
  • Operating Supply Voltage
  • 1.62 V to 3.6 V
  • Maximum Operating Temperature
  • + 85 C
  • Package / Case
  • LFBGA-144
  • Mounting Style
  • A/D Bit Size
  • 12 bit
  • A/D Channels Available
  • 16
  • Data ROM Size
  • 16 KB
  • Interface Type
  • I2C, SPI, UART
  • Minimum Operating Temperature
  • - 40 C
  • Number of Programmable I/Os
  • 103
  • Number of Timers
  • 3
  • On Chip DAC
  • Yes
  • Processor Series
  • AT91SAM3X
  • Program Memory Type
  • Flash
  • Factory Pack Quantity
  • 160

ATSAM3X8EA-CU Documents

  • ATSAM3X8E Technical Documentation of Application Note

ATSAM3X8EA-CU Related Products

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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 ATSAM3X8EA-CU 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 ATSAM3X8EA-CU devices; we pay more attention to the channels and quality of ATSAM3X8EA-CU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
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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 ATSAM3X8EA-CU 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 ATSAM3X8EA-CU, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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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 ATSAM3X8EACU we delivered, we will accept the replacement or return of the ATSAM3X8EA-CU 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 ATSAM3X8EA-CU.
(3)The ATSAM3X8EA-CU is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
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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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