![Close-up of a green printed circuit board with various electronic components and connectors (no readable text or symbols)](.etx-at-datasheet-en-1/d2001380418b8430558acd2192e78fb1c0bf77fb729de84c42c13267c07ce3bb.jpg)

# Features

Intel® Atom™ Processor N270 at 1.6 GHz
Intel® 945GSE/ICH7-M chipset
Up to 2 GB DDR2 533 MHz SDRAM
Single/dual 18/24-bit LVDS and TV-out
2 SATA, 2 IDE (PATA), LAN, USB 2.0

# Specifications

Core System

<table><tr><td rowspan="8">CPU</td><td>BGA type</td></tr><tr><td>Intel® AtomTM N270, 1.6 GHz with 512 KB L2 cache, 2.5 Watt On-die, primary 32-kB instruction cache and 24-kB, write-back data cache</td></tr><tr><td>Hyperthreading (2-thread) support</td></tr><tr><td>Advanced gunning transceiver logic (AGTL+) bus driver technology</td></tr><tr><td>Enhanced Intel SpeedStep® Technology</td></tr><tr><td>Source synchronous double-pumped (2x) Address</td></tr><tr><td>Source synchronous quad-pumped (4x) Data</td></tr><tr><td>C0 - C4 low power states supported</td></tr><tr><td>Memory</td><td>Single SODIMM socket supporting :- up to 2 GB of non-ECC, un-buffered, 533 MHz standard DDR2 SODIMM memory- Virtium SSDDR type module combining NAND flash SATA Solid State Drive (SATA SSD) and DDR2 memory on a single SODIMM module (ETX-AT-N270-SD only)</td></tr><tr><td>Chipset</td><td>Intel® 945GSE Express Graphic Memory Controller Hub and Intel® I/O Controller Hub 7 Mobile (ICH7-M)</td></tr><tr><td>BIOS</td><td>AMIBIOS®8 with CMOS backup in 8 Mbit SPI flash</td></tr><tr><td>Hardware Monitor</td><td>Supply voltages and CPU temperature</td></tr><tr><td>Watchdog Timer</td><td>Programmable timer ranges to generate RESET</td></tr><tr><td>Expansion Busses</td><td>PCI 32-bit: PCI ver 2.3 at 33MHz, supporting 4 bus mastersFast ISA 16-bit (through PCI/ISA bridge)SMBus,  $I^{2}C$ </td></tr></table>

Video

<table><tr><td>Chipset</td><td>945GSE GMCH integrated chipset supports dual independent displays</td></tr><tr><td>VGA Interface</td><td>Analog VGA support up to 2048 x1536 resolution</td></tr><tr><td>LVDS Interface</td><td>Dual channel 18/24bit with Chrontel 7308B on SDVO</td></tr><tr><td>TV-out</td><td>NTSC/PAL, SDTV, HDTV supported (without Macrovision)</td></tr></table>

Audio

<table><tr><td>Chipset</td><td>Integrated on Intel® I/O Controller Hub 7 Mobile (ICH7-M)</td></tr><tr><td>Audio Codec</td><td>Realtek ALC 262 HDA compatible</td></tr></table>

LAN

<table><tr><td>Chipset</td><td>PCIe x1 Realtek RTL8111C</td></tr><tr><td>Interface</td><td>10/100 Mbps</td></tr></table>

Multi I/O

<table><tr><td>IDE (PATA)</td><td>Dual channel IDE with UDMA 33</td></tr><tr><td>SATA</td><td>Two channels SATA 1.5 Gb/s with connectors on module (ETX-AT-N270-SD supports one SATA channel only)</td></tr><tr><td>USB</td><td>Supports up to four ports v. 2.0</td></tr></table>

Super I/O

<table><tr><td>Chipset</td><td>W83627HG</td></tr><tr><td>Serial</td><td>Two high speed RS-232C ports (COM1/COM2)</td></tr><tr><td>IrDA</td><td>Supports SIR IrDA 1.1 compliant</td></tr><tr><td>Parallel</td><td>SPP, EPP, and ECP mode (pin out shared with FDD)</td></tr><tr><td>FDD</td><td>One drive (pin out shared with LPT)</td></tr><tr><td>Keyboard &amp; Mouse</td><td>One PS/2 keyboard and one PS/2 mouse</td></tr></table>

TPM

<table><tr><td>Chipset</td><td>Infineon SLB9635TT1.2</td></tr><tr><td>Type</td><td>TPM 1.2</td></tr></table>

Power Specifications

<table><tr><td>Input Power</td><td>AT mode (5 V only) and ATX mode (5 V and 5 Vsb)</td></tr><tr><td>Power States</td><td>S0, S1, S3, S4, S5</td></tr><tr><td>Power Consumption</td><td>9 W typical (with Atom® N270 and 1 GB memory)</td></tr></table>

Mechanical and Environmental

<table><tr><td>Operating Temp.</td><td>Standard: 0°C to 60°C</td></tr><tr><td>Storage Temp.</td><td>-20°C to 80°C</td></tr><tr><td>Humidity</td><td>5% to 95% relative humidity, non condensing</td></tr><tr><td>Shock</td><td>15G peak-to-peak, 11ms duration, non-operation</td></tr><tr><td rowspan="2">Vibration</td><td>Non-operating: 1.88 Grms, 5-500 Hz, each axis</td></tr><tr><td>Operating: 0.5 Grms, 5-500 Hz, each axis</td></tr><tr><td>Form Factor</td><td>ETX® rev. 3.02, size 95 mm x 114 mm</td></tr><tr><td>Certifications</td><td>CE, FCC</td></tr></table>

Operating Systems

<table><tr><td rowspan="3">Standard Support</td><td>Windows® Vista 32-bit</td></tr><tr><td>Windows® XP 32-bit</td></tr><tr><td>Linux® 2.6.x</td></tr><tr><td rowspan="4">Extended Support</td><td>Embedded XP BSP</td></tr><tr><td>WinCE 6.0 BSP</td></tr><tr><td>Linux® 2.6.x BSP</td></tr><tr><td>AIDI Library for Win32, WinCE and Linux®</td></tr></table>

Functional Diagram
![This block diagram illustrates the architecture of a motherboard, centered around an Intel chipset hierarchy.\n\n**Central Components:**\n*   **CPU:** 'CPU Atom® N270 Micro-FCBGA' connects via a double-headed arrow to the **Northbridge**.\n*   **Northbridge:** 'Northbridge Intel® 945GSE' connects via a double-headed arrow to the **Southbridge**. It contains internal blocks: 'PCIe VGA', 'SDTV HDTV', 'SDVO_B', 'Graphic Core 250 MHz', and 'DDR2 Memory Controller'.\n*   **Southbridge:** 'Southbridge Intel® ICH7-M' contains internal blocks: 'PCIe x1', 'IDE PATA', 'PCIe x1', 'SATA', 'RTC', 'SPI', 'PCI Controller', 'Audio', 'USB 2.0', and 'LPC'.\n\n**Memory and Graphics:**\n*   The Northbridge connects to 'SODIMM DDR2 533 MHz' and 'optional SSDDR DDR2 + SATA SSD'.\n*   The Northbridge connects to 'LVDS Single/Dual 18/24-bit CH7308B'.\n\n**Storage and Expansion:**\n*   The Northbridge connects to 'LAN Realtek RTL8111C' and 'PATA IDE0/IDE1'.\n*   The Northbridge connects to 'PCI/ISA IT8888G', which leads to connector **X2**.\n*   The Southbridge connects to 'PCIe to PATA JML368', which connects to 'PATA IDE0/IDE1'.\n*   The Southbridge connects to two separate 'SATA' blocks.\n\n**External Connectors (X-Blocks):**\n*   **X4:** Connects to 'LAN Realtek RTL8111C', 'PATA IDE0/IDE1', 'VGA', and 'TV-out'.\n*   **X3:** Connects to the two 'SATA' blocks, 'SMBus', 'I2C' (via block 'BC'), 'Keyboard', 'Mouse', 'LPT1/FDD', 'COM1', and 'COM2'.\n*   **X1:** Connects to the 'PCI Bus', 'Audio Codec Realtek ALC268', and 'Four port USB 2.0'.\n*   **X2:** Connects to 'PCI/ISA IT8888G'.\n\n**Low-Level I/O and Peripherals:**\n*   The Southbridge 'SPI' connects to 'BIOS'.\n*   The Southbridge 'LPC' connects to 'TPM' and 'Debug Header'.\n*   The Southbridge connects to 'Super I/O Winbond W83627HG'.\n*   'Super I/O' connects to 'Keyboard', 'Mouse', 'LPT1/FDD', 'COM1', and 'COM2'.\n*   'SMBus' and 'I2C' connect to block 'BC'.\n*   The Southbridge 'Audio' connects to 'Audio Codec Realtek ALC268'.\n*   The Southbridge 'USB 2.0' connects to 'Four port USB 2.0'.](.etx-at-datasheet-en-1/52a299be5a27bf43a32e2b4e7d9add0bfa31022189aefb77299cec04f66c9154.jpg)

Ordering Information

Modules

<table><tr><td>Model Number</td><td>Description/Configuration</td></tr><tr><td>ETX-AT-N270-18</td><td>ETX Module with Intel® AtomTM Processor N270 at 1.6 GHz with 18-bit integrated LVDS support</td></tr><tr><td>ETX-AT-N270</td><td>ETX® Module with Intel® AtomTM Processor N270 at 1.6 GHz with 24-bit LVDS support</td></tr><tr><td>ETX-AT-N270-18SD</td><td>ETX Module with Intel® AtomTM Processor N270 at 1.6 GHz with 18-bit integrated LVDS and SSDDR support</td></tr><tr><td>ETX-AT-N270-SD</td><td>ETX Module with Intel® AtomTM Processor N270 at 1.6 GHz with 24-bit LVDS and SSDDR support</td></tr></table>

Accessories

<table><tr><td>Model Number</td><td>Description/Configuration</td></tr><tr><td colspan="2">Heat Spreaders</td></tr><tr><td>HTS-EAT-B</td><td>Heatspreader for ETX-AT (BGA CPU) with threaded standoffs</td></tr><tr><td colspan="2">Passive Heatsinks</td></tr><tr><td>THS-EAT-B</td><td>Low Profile Heatsink for ETX-AT (BGA CPU) with threaded standoffs</td></tr><tr><td>SSDDR</td><td>SSDDR by Virtium Technology Inc. is available in following configurations:1GB DDR2, 4GB-16GB SSD2GB DDR2, 4GB-16GB SSD</td></tr></table>
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