Specifications

Chapter 2 Product Overview
LittleBoard 735 Reference Manual 15
Environmental Specifications
Table 2-5 provides the most efficient operating and storage condition ranges required for this board.
Power Specifications
Table 2-6 shows the power requirements from the baseboard and the board power output.
Operating configurations:
• In-rush operating configuration includes video, 2GB DDR2 RAM, and power.
• Idle operating configuration includes the in-rush configuration as well as one IDE hard drive, I/O board,
keyboard, and mouse.
• BIT = Burn-In-Test. Operating configuration includes idle configuration as well as two SATA hard
drives, one on-board Compact Flash, one floppy drive, four serial loop-backs, one parallel loop-back,
two Ethernet connections, four USB loop-backs, one USB flash drive, and one Compact Flash reader
with 64MB Compact Flash.
Thermal/Cooling Requirements
The CPU, Memory Hub, I/O Hub, and voltage regulators are the sources of heat on the board. The
LittleBoard 735 is designed to operate at the maximum speed of the CPU: 1.6GHz. The Atom N270 CPU
requires a heatsink but no fan for -40°C to +85°C operation.
Table 2-5. Environmental Requirements
Parameter 1.6GHz Atom N270
Conditions
Temperature
Operating -20° to +70°C
(-4° to +158°F)
Extended
(Optional)
–40° to +85°C
(–40° to +185°F)
Storage –55° to +85°C
(–67° to +185°F)
Humidity
Operating 5% to 95%
relative humidity,
non-condensing
Non-operating 5% to 95%
relative humidity,
non-condensing
Table 2-6. Power Supply Requirements
Parameter 1.6GHz Atom N270
Characteristics
Input Type Regulated DC voltages
In-rush Current 6.59A (32.95W)
Idle Power 1.09A (5.46W)
BIT Current 2.36A (11.78W)