# Aria G25 - Linux embedded system on module

<abstract>
Linux embedded system on module designed around the Microchip AT91SAM9G25 ARM9@400MHz MPU
</abstract>

<img src="onboardchip.jpg" title="AriaG25 sections">

<a href = "/doc_aria" class = "btn btn-primary" role = "button"><i class="glyphicon glyphicon glyphicon-book"></i> Documentation</a>

##Main features

* [Long term availability](/declarations/ProductsAvailability.pdf)
* [Microchip AT91SAM9G25 MPU](http://www.microchip.com/wwwproducts/en/AT91SAM9G25) (ARM9@400Mhz)
* DDR2 RAM 128/256 MB @ 16 bit
* Boot from external microSD, SD card or serial flash
* Lan 10/100 Mbit
* User configurable led on board
* Power supply: single at 3.3 Volt DC
* Consumption: [see consumption...](/aria_power_consumption)
* Line level: TTL 3.3V
* Temperature range: 0-70 &deg;C and -20 +70 &deg;C (-E version)
* Size: 40 x 40 mm (1.57x1.57 inch)
* Weight: 5g
* Pads pitch: 1.27 mm (50 mils)
* Reliability parameters: 
  * Atmel AT91SAM9G25 MTBF (Mean Time Between Failure): 75,131,480 hours
  * Crystals MTTF (Mean Time To Failure): 95% = 131,000 hours, 60% = 265,000 hours 
* PCB layers: 8
* Low EMI
* Designed and made in Italy
* No Acme Systems brand printed on-board
* [Declarations of conformity](/declarations)

##Exposed signals

* **USB**: up to 3 host ports:
  * one hi-speed host/device
  * one hi-speed host
  * one full-speed
* **UART**: up to 6 serial lines
* **I2C**: up to 2 I2C buses
* **SPI**: one SPI buse
* **GPIO**: up to 60 GPIO lines
* **A/D**: up to four channel @ 10 bit

##Software features

* This board is fully supported inside the Linux Kernel main stream [http://www.kernel.org](http://www.kernel.org).
Thanks to this fact it is possible to try also the very latest Kernel releases. On this site we'll release up to the latest longterm versions.     
* All the kernel drivers are fully open source and available directly on the official Linux repository.
* On @article='doc_aria' is available the step-by-step documentation to install Linux from scratch. 
* Ready-to-use binary images of Debian and Buildroot Linux distribution are available on @article='download_aria' page 
* Ready-to-use microSDs are also available on our [Store](/pricelist?category=aria)