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Products   >   Services   >   End-of-Life Products   >   Hercules I EBX SBC
3-in-1 design reduces size and weight, increases reliability
550-750MHz Pentium-III class processor with on-board memory, video, ethernet, and audio
On-board data acquisition circuit with autocalibration
On-board DC/DC power supply with 5-28V input range
PC/104 and PC/104+ expansion
Extended temperature operation at no additional charge
Rugged design ideal for vehicle and outdoor applications
Feature Details
VIA Eden Pentium III class 550-750MHz processor
128-256MB SDRAM soldered on board
VGA support up to 32 bit per pixel and max resolution of 1920x1440
Integrated S3 ProSavage 4 AGP-4X graphics
Advanced 3D rendering and 3D hardware acceleration
LCD support any LVDS screen up to 1400x1050
AC97 audio with on-board codec and 2W per channel Hi-Fi stereo amplifier and DC volume control
10/100Mbps Ethernet with RJ-45 and pin header connections
TV out feature - composite and S-video
UDMA-100 IDE support
IDE flashdisk module socket
Compact flash socket
4 USB ports
4 serial ports - 2 fixed RS-232 or RS-485, 2 selectable RS232/485
PS/2 keyboard and mouse
Programmable watchdog timer, 0 to 2 seconds
Low power fanless operation at 550MHz
PC/104-plus ISA and PCI expansion
-40 to +85ºC operation
Data Acquisition
32 wide-range analog inputs, +/-10V down to 0-1.25V
16-bit A/D resolution
Single-channel, multi-channel round robin, and multi-channel scan sampling
250KHz max sample rate
2048 A/D sample FIFO with programmable threshold
Interrupt-based A/D data transfer with FIFO support
Programmable input ranges
4 wide-range analog outputs with simultaneous update capability
12-bit D/A resolution
Multi-range autocalibration for highest accuracy
40 digital I/O lines with programmable direction
16-bit and 24-bit counter/timers
4 programmable pulse-width modulation (PWM) outputs
Field-upgradeable logic circuit for performance upgrades or custom designs
Power Supply
5-28VDC input range standard - direct connect to vehicle power systems
20-48VDC input range optional
40 watts output power (12-16 watts used by CPU)
Switched auxiliary power for IDE drives and accessories
See Hercules I EBX SBC Technical Resources
A/D Board Tutorial
Request Product information
Request Technical Support
Hercules Datasheet
(.pdf, 149.7 kb)
LG Electronics LP121X04.pdf
(.pdf, 219.1 kb)
Hercules EBX User Manual
(.pdf, 7.9 MB)
Autocalibration Technology Backgrounder
(.pdf, 112.9 kb)
Universal Driver Software

End of Life Item: Last Time Buy in Effect Through January 1, 2007
For replacement product see Hercules II

Hercules I EBX SBC

EBX format CPU with integrated autocalibrating and DC/DC power supply

Hercules I EBX SBC
click for a larger image
System Block Diagram
Data Acquisition Circuit
Development Kit
Cable Kit
DAQ Demo Board
Device Drivers
AC Adapter
Get an online quote
Features Benefits
Low-power VIA Eden processor High computing power with reduced power consumption
Fanless operation (550MHz)
Memory soldered on board Increased reliability and ruggedness
Guaranteed compatibility
Integrated LCD, CRT, Ethernet, and system I/O Complete PC on a single board
On-board DC/DC power supply Suitable for vehicle applications
Reduced size and weight
Integrated data acquisition circuit with autocalibration Single-board solution for increased reliability
Increased measurement accuracy
-40/+85ºC operation Compatible with vehicle and outdoor applications
Ruggedization capability Customizable for harsh environment applications


Hercules introduces a new level of integration in EBX format CPU boards. Combining processor, data acquisition, and power supply onto one board results in a thinner, lighter, more rugged, and easier to assemble embedded system. This 3-in-1 design addresses the needs of mobile and vehicle applications by offering the benefits of reduced size, weight, cost, and power consumption. The Hercules CPU design is based on the VIA Eden processor chipset, featuring Pentium III class performance with dramatically reduced power consumption. For example 550MHz board consumes only 12 watts max and requires only a small heat sink with no fan to operate at temperatures up to 85oC. The 750MHz version consumes 16 watts and uses a small cooling fan. The advanced data acquisition circuit features autocalibration and fully jumperless configuration feature for maximum accuracy and reliable performance. The built-in DC/DC power supply enables Hercules to be used in a wide range of applications without requiring a separate add-on supply.

Built-In Power Supply

Hercules contains a DC/DC power supply with 40 watts of output power, enough to power the CPU as well as peripherals and add-on boards. The standard input range of 5-28VDC means that Hercules is compatible with a standard off-the-shelf 5V supply as well as a vehicle, battery, or industrial power source. An optional 20-48VDC input range is also available. The on-board supply features ACPI compatibility for intelligent power management.

Advanced Multimedia Features

Hercules contains an integrated S3 ProSavage 4 video circuit. This advanced design provides hardware 2D and 3D acceleration with 32MB video buffer using shared system memory, 128-bit engine architecture, full internal AGP 4x performance, 3DNow! and MMX instruction sets, and high-quality DVD video playback. The video circuit supports CRTs up to 1920x1440 and LVDS LCD panels up to 1400x1050 resolution. Simultaneous CRT and LCD display is supported. Integrated TV-out can produce simultaneous Composite and S-Video out, NTSC or PAL encoding. Audio features include an integrated AC97 digital audio controller and codec. A built-in Hi-Fi stereo speaker amplifier provides 2 watts per channel output power and ultra low-noise sound (SNR > 87dB). Audio I/O signals include Mic in, CD in, Aux in, Line in / Line out, and speaker out. Speaker out is also equipped with DC volume level control for ease of integration.

System Block Diagram

Hercules Block Diagram

Data Acquisition Circuit

Hercules includes a complete autocalibrating jumperless analog and digital I/O circuit superior to our top-of-the-line PC/104 board. It contains 32 analog inputs with 16-bit resolution and 250KHz sample rate, backed by a 2K-sample FIFO with programmable threshold. Programmable input ranges from a wide-range +/-10V down to 0-1.25V are provided. The analog circuitry also includes 4 D/A channels with 12-bit resolution and jumperless output range selection and simultaneous update capability. On the digital side, Hercules provides 40 digital I/O lines with programmable direction, as well as two counter/timers for A/D sample rate control, pulse counting, frequency generation, or other applications. Its advanced control logic has more features and flexibility to fit almost any application, such as internal/external A/D clock source, scan and single-sample modes, and our exclusive programmable FIFO threshold that lets you tune the board's performance to your application. Also four independent programmable Pulse-Width Modulation outputs (PWM) are available to users. The data acquisition circuit is fully supported by our Universal Driver software for a wide range of operating systems.

Hercules Data Acquisition Circuit Block Diagram

Development Kit

A development kit is available with all the hardware you need to get started on your Hercules embedded design project. The kit contains a Hercules CPU board, data acquisition test board, flashdisk module, cable kit, AC power adapter, USB floppy drive, and software CD.

Hercules Development Kit

Item DSC No. Description
1 C-HRCEBX-KIT Hercules cable kit including utility board
(see separate description below)
2 ACC-HRCDAQ Hercules data acquisition demo board
3 FD-128-XT 128MB IDE flashdisk module
4 881001 Flashdisk programming module
5 891001 USB floppy drive
6 PS-12V-01 AC adapter, 100-240VAC in, 12VDC out
7 MTG104 PC/104 mounting hardware kit
8 671001 Diamond Systems CD with
driver software and user manuals

Hercules Cable Kit

The Hercules cable kit includes cables for all Hercules I/O except LCD data and backlight, which are included in the LCD kit. A cable kit is strongly recommended for first-time buyers, as many cables are non-standard. All cables are also available individually. Once you know which cables your application requires, you can save money on future orders by purchasing only the ones you need.

Hercules cable kit

Item Qty Part No. Description
1 1 698002 Ethernet cable
2 1 698022 Dual-port PS/2 cable
3 1 698025 Audio I/O cable
4 1 698017 TV output cable
5 1 698018 Speaker output cable
6 1 698024 VGA output cable
7 1 C-20-18 20-conductor ribbon cable
8 1 C-40-18 40-conductor ribbon cable
9 1 C-50-18 50-conductor ribbon cable
10 1 C-DB9M-4 4-port serial port cable
11 1 698026 40-conductor UDMA-100 IDE cable
12 1 698004 44-conductor IDE cable
13 1 698015 Power input cable, 10 conductors
14 1 698016 High-power input cable, 2 conductors
15 1 698011 External battery cable
16 1 698006 Output power cable
17 2 698012 Dual-port USB cable
18 1 861002 Utility features assembly

Hercules LCD Kit

Diamond Systems offers a convenient LCD development kit for applications requiring LCD display. The kit includes a 12.1" diagonal LVDS LCD, a backlight power inverter, and cables for the LCD and backlight. Hercules provides power for the backlight inverter. The LCD cable is also available individually.

Hercules LCD Kit

Qty Part No. Description
1 891201 LCD, 12.1" diagonal LVDS,
LG Electronics no. LP121X04
1 891202 LCD backlight inverter for LP121X04 LCD
1 698201 LCD cable, LVDS, length 14 inches
1 698202 LCD backlight inverter cable

Hercules Data Acquisition Demo Board

The ACC-HRCDAQ provides a convenient way to test the data acquisition circuitry on our Hercules CPU, to assist in software development or system checkout. (It is not compatible with Athena or Prometheus CPUs.) The board provides an assortment of analog signals that drive the analog inputs of the board in both single-ended and differential mode. The Hercules analog outputs are also routed back to analog input channels for measurement.

Digital I/O signals on port A are looped back to port B, and C high is connected to C low. Pin headers provide access to most analog I/O signals, along with counter/timer and PWM signals, so you can monitor these signals with an oscilloscope or voltmeter.

ACC-HRCDAQ is the size of a PC/104 board and can mount directly on top of Hercules or sit off to the side. It does not use the PC/104 bus connectors. Mating 40-pin and 50-pin ribbon cables are included.


Processor VIA Eden P-3, 550MHz (fanless), 750MHz (fan)
SDRAM memory 128-256MB on board
Flash memory 2MB
System I/O 4 USB 1.1, PS/2 kbd/mouse
Serial ports 2 fixed RS-232 or RS-485
2 configurable RS-232/485
Max data rate 460.8kbps all ports
IDE connections 1 44-pin connector for flashdisk
1 40-pin dual-channel UDMA-100
Compact flash socket
Ethernet 10/100Mbps
Serial console Selectable COM1 / COM2
Floppy Drive USB legacy support
Parallel Port Not present
PC/104 Bus Capacity 3 modules
PC/104+ bus +5V/+3.3V selectable
Data Acquisition Circuitry
Analog inputs 32, 16-bit A/D resolution
Max sample rate 250KHz total
Input modes Single-ended, differential
Input ranges +/-10V, +/-5V, +/-2.5V, +/-1.25V, 0-10V, 0-5V, 0-2.5V, 0-1.25V
Accuracy < +/-2LSB after autocalibration
Analog outputs 4, 12-bit D/A resolution
Settling time 10uS to +/-.01%
Input Impedance 10^13 ohms
Output current +/-5mA max, 2kOhm min load
Digital I/O 40 lines, 5V logic compatible with ESD protection
Direction Programmable in 8-bit ports
Output current 0: 12mA max; 1: -4mA max
Counter/timers 1 24-bit A/D sample rate control
1 16-bit general purpose use
PWM 4 independent programmable Pulse-Width Modulation outputs
Power supply
Input voltage 5-28VDC std., 20-48VDC opt.
Total output power 40W total (30W, 28W or 24W spare based on board speed grade)
Power consumption 12W at 550MHz and 16W at 750MHz
Output voltages +5V, +3.3V (on PCI bus)
Switched outputs +5V, +12V, +3.3V
Dimensions 8.00" x 5.75" EBX format
Weight 10oz / 285g
Operating temp. -40 to 85ºC

AC Adapter

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