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Products   >   Services   >   End-of-Life Products   >   Athena II PC/104 SBC
CPU Features
VIA Mark Processor at 500MHz or 800MHz
Low-power fanless operation at both speeds
256MB memory soldered on board
10/100Mbps Ethernet
S3 Savage 4 Chipset with advanced 3D/2D video
Flat panel, CRT, and LCD display support
IDE port with UDMA-33 capability
4 RS-232 serial ports
4 USB 1.1 ports
PS/2 keyboard/mouse ports
Real-time clock
Watchdog timer
PC/104 ISA expansion bus
-40ºC to +85ºC operation
Shock IEC68-2-27
Vibration MIL-STD-810E 514.4
Data Acquisition Features
16 analog inputs, 16-bit A/D
100KHz max sampling rate
Interrupt-based A/D sampling with 2048 FIFO
Programmable input ranges
4 analog outputs, 12-bit D/A
24 programmable digital I/O
2 programmable counter/timers
Supported by Universal Driver software
Customers who use this product also use:
Athena II Development Kit
IDE Flashdisks
Athena II Cable Kit
Octavio Ruggedized Systems

This product can be customized and ruggedized. Click here for more information.
See Athena II PC/104 SBC Technical Resources
Request Product information
Request Technical Support
Athena II Datasheet
(.pdf, 416.6 kb)
Athena II Fast Start Guide
(.pdf, 539.5 kb)
Athena to Athena II Migration Guide
(.pdf, 25.3 kb)
Athena II User Manual
(.pdf, 2.3 MB)
Athena II Shock and Vibration Test Results
(.pdf, 5.0 MB)
Athena II Example Source Code for UD 6.01
(.zip, 2.1 MB)
Universal Driver Software

Athena II PC/104 SBC

Small Format SBC with 500-800MHz VIA Mark CPU and Integrated Autocalibrating Data Acquisition

CPU + DAQ pc104

Athena II PC/104 SBC
click for a larger image
System Block Diagram
Integrated Data Acquisition
Development Kits
Cable Kit
Solid State Storage
Operating System Compatibility
AC Adapter
Get an online quote
Features Benefits
Low-power VIA Mark processor High computing power with reduced power consumption
Reduced heat dissipation / fanless operation
Integrated LCD, CRT, Ethernet, and system I/O Small size
Light weight
Integrated data acquisition Single-board solution for increased reliability
Guaranteed compatibility
Ruggedization including shock and vibration Customizable for demanding applications
Increased reliability


The Athena II SBC from Diamond Systems combines the low-power, highly integrated VIA Mark CoreFusion™ processor with on-board memory and data acquisition into a new compact form factor measuring only 4.2" x 4.5". The result is a small, low-heat-dissipation, and extremely rugged embedded CPU that fits in tight spaces and survives harsh environments. On-board 256MB RAM, LCD+CRT video, AC97 audio, 4 USB ports, 4 serial ports, a 16-bit low-noise data acquisition circuit, and extended temperature operation make Athena II an all-in-one, complete embedded solution for demanding applications.

Athena II can be customized for increased ruggedness. Options include latching connectors, hardwired configuration settings, rugged heat sink mounting, conformal coating, and BIOS modifications.

An enhanced set of I/O ports is provided to support any application's requirements, including 10/100Mbps Ethernet, UDMA-33 IDE, parallel port, PS/2 keyboard and mouse ports, and 4 USB 1.1 ports. The board also has 4 16450-compatible RS-232 serial ports. The watchdog timer provides protection from software crashes and is programmable for delays up to 2 seconds.

The built-in PC/104 expansion bus enables Athena II to work with almost all Diamond Systems data acquisition and communications modules, as well as hundreds of I/O boards from other vendors. The board can be provided with either stackthrough PC/104 connectors (standard) or non-stackthrough connectors for a slim baseboard application. The new compact 4.2" x 4.5" form factor, slightly larger than PC/104, enables Athena II to include more features on a single board and still fit inside our Pandora enclosure system.

All Athena II SBCs have a fan-less operating temperature range of -40ºC to +85ºC except models ATHM800256NLP and ATHM800256ALP which have a fan-less operating temperature range of -40ºC to +70ºC.

System Block Diagram

Athena II Block Diagram

Integrated Data Acquisition

The optional data acquisition circuit provides high-accuracy, stable 16-bit A/D performance with 100KHz sample rate, wide input voltage capability up to +/-10V, and programmable input ranges. It includes 4 12-bit D/A channels, 24 programmable digital I/O lines, and two programmable counter/timers. A/D operation is enhanced by on-board FIFO with interrupt-based transfers, internal/external A/D triggering, and on-board A/D sample rate clock. Placement of the analog circuitry away from the high-speed digital logic ensures low-noise performance for critical applications. All data acquisition features are fully supported by our Universal Driver software for Linux, Windows XP, Windows CE, and DOS to simplify application development.

Athena II Data Acquisition Block Diagram

Athena II Development Kits

Athena II System Development Kits (DK-ATHM500A-01 or DK-ATHM800A-01) are available with all the hardware you need to get started on your Athena II embedded design project. Each kit contains a flashdisk module, cable kit, AC power adapter and software instructions.

Athena II Development Kit

Item Part Number Description
1 PS-5V-04 AC Power Adapter, 5VDC/6A
2 C-ATH-KIT Athena II Cable Kit (see below)
3 FD-128-XT IDE Flashdisk Module, 128MB, XT
4 ACC-IDEEXT FlashDisk Programming Kit
5 MTG104 PC/104 Mounting Kit,
including 4 ea. spacers, screws, nuts
6 ATHM500-256A Athena II SBC, 500 MHz, DAQ
7 6710010 CD-ROM, DSC files (not shown)
8 7460002 Guide, Athena II Fast Start Guide (not shown)
9 7460002 DSC Document Package(not shown)

A Linux software development kit is also available for Athena II. The Athena II Linux Kit (SDK-ATHM-LNX) contains a 512MB flashdisk with a bootable linux image pre-loaded, a software CD with the linux tool chain and a backup image, and documentation.

Athena II Cable Kit (C-ATH-KIT)

The Athena II cable kit includes cables for Athena II input and output. All cables are also available individually.

Athena II Cable Kit

No. Qty Cable Description
1 1 6981004 IDE, 44 conductor 2mm ribbon cable
2 1 6981006 Power output cable
3 1 6981009 Power input cable
4 1 6981011 External battery cable
5 1 6981012 Dual USB cable, ports 0 & 1
6 1 6981030 VGA cable
7 1 6981031 Audio cable
8 1 6981032 USB cable, ports 2 & 3
9 1 C-50-18 50-conductor .1" pitch 18" ribbon cable, Data acquisition Cable
10 1 C-PRZ-01 Breakout Cable, 15" length; serial, parallel, PS/2, utilities
11 1 C-PRZ-02 Ethernet cable

PC/104 Enclosure for Athena II

pc104 enclosure

The following Athena II models can be mounted inside our Pandora PC/104 enclosure with cable-free panel I/O board to form a rugged, compact, completely self-contained industrial computer system: ATHM500-256A, ATHM500-256N, ATHM800-256ALP, and ATHM800-256NLP. Click here for more information on the Pandora PC/104 enclosure.
panel I/O board

Solid State Storage

Athena II is compatible with our solid state IDE flashdisk modules. These modules provide mass storage that is fully IDE compatible and requires no drivers to work with your operating system. They mount directly onto the board's IDE connector and are held in place with a mounting screw for extra ruggedness. We offer high-speed nonvolatile mass storage in capacities of 128MB to 4GB. Click here for more information on flashdisk modules.

IDE flashdisk

Operation System Compatibility

Athena II supports Linux, Window XP, Windows Embedded Standard, QNX, and DOS.

Operating System Athena II
Windows XP
Windows Embedded Standard
Linux 2.6.23
QNX 6.4.0
DOS 6.22


CPU and System
Processor VIA Mark, low-power Pentium III class
Speed 500MHz or 800MHz
Power consumption 10 watts
Cooling Heat sink, fan-less at both speeds
LCD interface

Mark internal Savage4 3D and 2D acceleration, 4x AGP, and 128-bit engine
Up to 1280x1024x32 or 1920x1440x16
8/16/32MB shared with system memory
18-bit dual-channel LVDS, 1400x1050
Memory 256MB soldered on board
Mass storage:
Real-time clock

44-pin connector, UDMA33 (33MB/sec), up to 2 drives
Solid state module, up to 512MB, mounts on board
On-board RTC with lithium backup battery
Watchdog timer 0.15 - 2 sec user programmable
Ethernet National Semi DP83815, 10/100Mbps
Serial ports:
Ports 1/2
Ports 3/4
4x RS-232
Up to 115.2kbps, 16-byte FIFO, 16C450 compatible
Up to 460.8kbps, 128-byte FIFO, 16C2850 UART
Parallel port SPP, EPP, and ECP compatible; BIOS enable/disable
USB ports 4 USB 1.1
PS/2 2 ports for keyboard & mouse
Data Acquisition
Analog inputs 16 single-ended / 8 differential
A/D resolution/speed 16 bits, 100KHz maximum
Input ranges +/-10V, +/-5V, +/-2.5V, +/-1.25V, 0-10V, 0-5V, 0-2.5V, 0-1.25V
Analog outputs 4, 12-bit resolution
Output ranges +/-10V, +/-5V, 0-10V, 0-5V
Input impedance 10^13 ohms
Digital I/O
Digital I/O lines 24
Counter/timers 1 24-bit and 1 16-bit
A/D sample rate control, counting/timing,
programmable interrupts
Operating temp. ATHM800-256A -40ºC to +85ºC
ATHM800-256N -40ºC to +85ºC
ATHM800-256ALP -40ºC to +70ºC
ATHM800-256NLP -40ºC to +70ºC
ATHM500-256A -40ºC to +85ºC
ATHM500-256N -40ºC to +85ºC
Power supply +5VDC +/-5% @ 2.0A
Dimensions 4.175"W x 4.475"H
Weight 5.3oz / 150g
Shock IEC68-2-27
Operating Shock Half-Sine Wave Shock
40 G: 9ms: 18 shocks per axis: Vertical / Transverse / Longitudinal
Vibration MIL-STD-810E 514.4
Operating Random Vibration Mode
Axes: Vertical / Transverse / Longitudinal
7.7Grms 20-2000Hz Random Vibration. 60min/axis
Operating Swept Sine Mode
Axes: Vertical / Transverse / Longitudinal
0.01in. p-p, 5-20Hz, 7.7g peak, 20-2000Hz Swept Sine, 60min/axis
MTBF ATHM800-256A 165,759 hours
ATHM800-256N 190,280 hours
ATHM500-256A 165,705 hours
ATHM500-256N 190,210 hours
RoHS Compliant

AC Adapter (PS-5V-04)

The AC adapter provides a convenient way to power your embedded SBC during development or demos. it contains the proper connector for direct connection to the SBC board. Each order ships with the correct power cord for the country for the country of destination.

AC Adapters

Get an online quote

Athena II PC/104 SBC
available models:
Athena II SBC, 500MHz, 256MB RAM, data acquisition
Athena II SBC, 800MHz, 256MB RAM, data acquisition
Athena II SBC, 800MHz, 256MB RAM, data acquisition, low profile heatsink
Development kit includes 500MHz Athena II SBC with data acquisition, cables, Linux flashdisk, and AC adapter
Development kit includes 800MHz Athena II SBC with data acquisition, cables, Linux flashdisk, and AC adapter
Athena II cable kit
Athena II QNX Software Development Kit with 512MB flashdisk
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