====== Block Diagram and Schematic ======

{{http://dn.odroid.com/homebackup/U3Rev05blockdiagram.jpg?640}}

Although the ODROID-U3 is a cost-effective ARM single-board computer, it sports a quad-core Samsung ARM SoC.\\
The specifications on the ORDOID-U3 include a Samsung Exynos 4412 quad-core ARM Cortex-A9 1.7GHz SoC, Mali-400 MP with 4 GPU Cores, three USB 2.0 host ports, one 10/100MB Ethernet port, 1080p video output via micro-HDMI, 2GB of LP-DDR2 system memory, eMMC and micro-SD for storage, and supports Debian Wheezy, Ubuntu 14.04 Linux, Arch Linux, Kali Linux and Android Jellybean Operating Systems.

Schematics and drawings are available here.
[[http://www.hardkernel.com/main/products/prdt_info.php?g_code=G138745696275&tab_idx=2|ODROID-U3 Schematics]]
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{{http://dn.odroid.com/homebackup/U3Rev05boarddetail.jpg?640}}

| CPU |[[http://www.samsung.com/global/business/semiconductor/minisite/Exynos/index.html| 1.7Ghz Exynos4412 Prime]] Cortex-A9 Quad-core processor |
| PMIC | MAX77686 Power Management IC from [[http://www.maximintegrated.com| MAXIM]] |
| HSIC USB 2.0 Hub |[[http://www.microchip.com/wwwproducts/Devices.aspx?product=USB3503|USB3503A]] Integrated USB 2.0-compatible hub / HSIC upstream port from SMSC/Microchip |
| HSIC Ethernet controller | [[http://www.microchip.com/wwwproducts/Devices.aspx?product=LAN9730|LAN9730]] HSIC USB 2.0 to 10/100 Ethernet controller with HP Auto-MDIX from SMSC/Microchip |
| Audio CODEC | [[http://www.maximintegrated.com/en/products/analog/audio/MAX98090.html|MAX98090]] is a full-featured and high performance audio CODEC from MAXIM |
| Protection IC |[[http://www.onsemi.com/PowerSolutions/product.do?id=NCP372|NCP372]] Over-voltage, Over-current, Reverse-voltage protection IC from OnSemi. |
| USB Load switch |[[http://www.onsemi.com/PowerSolutions/product.do?id=NCP380|NCP380]] Protection IC for USB power supply from OnSemi. |
| HDMI conditioner | [[http://www.nxp.com/documents/data_sheet/IP4791CZ12.pdf|IP4791CZ12]] HDMI transmitter interface protector with level shifter from NXP |
| Connectivity | USB Host x 3, Device x 1, Ethernet RJ-45, Headphone Jack |
| IO Ports | GPIO, UART, I2C, SPI(Board Revision 0.5 or higher) |
| Storage Slot | A Micro-SD slot and an eMMC module connector |
| DC Input | 5V / 2A input, Plug specification is inner diameter 0.8mm and outer diameter 2.5mm |

====== Expansion Connectors ======
The Odroid-U3 povides two expansion sockets which one 8-pin dual row expansion socket "**J4**" and other 4-pin dual row socket "**J5**".
The location and pinout of these connectors is illustrated blew.\\ All signals on expansion headers are 1.8V level
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**J4 - 2x4 pins(IO Port #1)**
^ Pin Number ^ Net Name ^ GPIO & Export No ^ Pin Number ^ Net Name ^ GPIO & Export No ^
| 1          | XEINT_8  | GPX1.0 (#199)    | 2          | 1.8V     |                  |
| 3          | XEINT_9  | GPX1.1 (#200)    | 4          | XURXD_0  | /dev/ttySAC0     | 
| 5          | XEINT_13 | GPX1.5 (#204)    | 6          | XUTXD_0  | /dev/ttySAC0     |
| 7          | GND      |                  | 8          | 5V0      |                  |

**J5 - 2x2 pins(IO Port #2)**\\
This socket is not provides at revision 0.3 
^ Pin Number ^ Net Name   ^ GPIO & Export No ^ Pin Number ^ Net Name   ^ GPIO & Export No ^
| 1          | XSPICLK_1  | GPB.4 (#21)      | 2          | XSPICSN_1  | GPB.5 (#22)      |
| 3          | XSPIMOSI_1 | GPB.7 (#24)      | 4          | XSPIMISO_1 | GPB.6 (#23)      | 
====== LED Indicators ======
RED LED(D3)- Power
   * ON when it is Hooked up to 5V power. 
   * OFF when it is not Hooked up to 5V power. 
BLUE LED(D2)- ALIVE
   * dimly solid on when u-boot is running.
   * blinking  when Kernel is running(heart beat).

====== UART Console Connector ======
<code>
_____UART____
|Pin 4 - GND|
|Pin 3 - RXD|
|Pin 2 - TXD|
|Pin 1 - VCC|
\___________|

1.8V LVTTL</code>

====== Regulatory Compliance Documents ======
{{ :en:u3_fcc_declaration_of_conformity.pdf |FCC}}\\
{{ :en:ce_odroid-u3.pdf |CE}}\\
{{ :en:odroid-u3_kcc.pdf |KCC}}