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Hercules II

EBX Single Board Computer with 800MHz VIA Mark CoreFusion CPU, Integrated Autocalibrating Data Acquisition, and DC/DC Power Supply


• Low-power, high performance Intel Atom E-Series processor
• Integrated LCD, CRT, Ethernet, and system I/O
• On-board wide range power supply
• Integrated data acquisition circuit
• Multi-range autocalibration of DAQ functions
• -40ºC to +85ºC operation
• Ruggedization including shock and vibration


• High computing power with reduced power consumption
• Fan-less operation
• Complete PC on a single board
• Increased compatibility with vehicle and industrial environments
• Single-board solution provides higher reliability, smaller size, and lower cost
• Increased measurement accuracy across entire temperature range
• Compatible with vehicle and outdoor applications
• Customizable for harsh environment applications

Hercules III is a high performance successor to the popular Hercules II EBX SBC. Combining processor, data acquisition, and power supply onto one board results in a thinner, lighter, more rugged, and easier to assemble embedded system. The 3-in-1 design addressed the needs of mobile and vehicle applications by offering the benefits of reduced size, weight, cost, and power consumption.

Hercules III combines all of the functionality of a single board computer with a complete analog and digital data acquisition circuit into a single board, offering the most functionality available in a small, compact form factor. The advanced data acquisition circuit features autocalibration and fully jumper-less configuration for maximum accuracy and reliable performance. The 1.6GHz Intel Atom E680T CPU offers an excellent price/performance, making Hercules III an ideal choice for a wide variety of embedded computing applications. Rugged on-board SDRAM memory offers provides better protection from shock and vibration than a SO-DIMM memory module.

Hercules III supports 1GB or 2GB of onboard SDRAM and provides high-resolution LVDS and VGA graphics interfaces. Additional I/O ports include SATA, CANbus, USB, serial, digital I/O, and Gigabit Ethernet. Flexible system expansion is based on stackable PC/104-Plus (ISA + PCI) modules. mSATA, PCIe MiniCard, and GPS modem sockets are provided for optional on-board storage and I/O.

Hercules III was designed with rugged applications in mind. From an operating temperature of -40°C to +85°C, the on-board rugged SDRAM, and its high tolerance for shock and vibration, Hercules III thrives in the most extreme environments.

Built-In Power Supply

Hercules III contains an on-board DC/DC power supply with 55 watts of output power. With approximately up to 20W required to power a fully loaded SBC, this leaves 35W available to power peripherals and add-on boards. The input range of +7-40VDC means that Hercules III is compatible with vehicle, battery, or industrial power sources and can be used in a wide range of applications without requiring a separate add-on supply. The on-board supply features ACPI compatibility for intelligent power management.

System Block Diagram

Data Acquisition Circuit

Hercules III includes a complete autocalibrating jumper-less analog and digital I/O circuit equivalent 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, in addition to the standard 40 digital I/O lines with programmable direction, Hercules III's DAQ circuit adds 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. The Hercules III data acquisition circuitry is identical to that of Hercules II, preserving backward compatibility.




1.6GHz Atom E680T

SDRAM memory

1GB or 2GB soldered-on SDRAM


4 USB 2.0
1 USB 2.0 device port

Serial ports

4 fixed RS-232
2 configurable RS-232/422/485

Max data rate

460.8kbps all ports

Mass storage

1 SATA port
1 mSATA Disk Module interface


2 Gigabit Ethernet

Serial console

Selectable COM1 / COM2


1 CANbus 2.0 port

Digital I/O

40 lines, 5V logic compatible with ESD protection


Programmable in 8-bit ports

Output current

Logic 0: 12mA max,
Logic 1: -4mA max



Display Resolution

1600 x 1200 maximum

Keyboard & Mouse

PS/2 keyboard & mouse


HD Audio Realtek ALC262 CODEC

Expansion Sockets

PCIe MiniCard full-size socket
Trimble Condor C2626 GPS receiver socket

PC/104-Plus 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


< +/-2LSB after autocalibration

Input protection

Overvoltage protection up to +/-35V even when powered off

Analog outputs

4, 12-bit D/A resolution

Settling time

10uS to +/-.01%

Input Impedance

10^13 ohms

Output current

+/-5mA max, 2k ohm min load


1 24-bit A/D sample rate control
1 16-bit general purpose use


4 independent programmable Pulse-Width Modulation outputs

Power supply

Input voltage


Total output power

55W total

Available power

35W available for add-on devices or modules

Output voltages

+5V, +3.3V (on PCI bus)

Switched outputs

+5V, +12V, +3.3V


Power consumption

Nominal: 13.8W
Maximum: 20W


8.00" x 5.75" EBX format


10oz / 285g

Operating temperature

-40ºC to +85ºC


MIL-STD-202G, Method 213B compatible


MIL-STD-202G, Method 214A compatible




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