CD905-B Series COM Express® Compact
Features
Intel® NM10
Intel® Atom™ D2550 (-B2550)
Intel® Atom™ N2800 (-B2800)
Intel® Atom™ N2600 (-B2600)
MEMORY
1 DDR3 SODIMM up to 4GB (-B2550/-B2800)
1 DDR3 SODIMM up to 2GB (-B2600)
EXPANSION 4 PCIe x1, 4 PCI
1 IDE
1 VGA, 1 LVDS
8 USB
2 SATA 2.0
8-bit DIO
LAN
1 Gigabit LAN interface
DIMENSIONS 95mm x 95mm (3.74" x 3.74")
CHIPSET
CPU
Intel Atom
D2550/
N2800/
N2600
DDR3
SODIMM
Intel
NM10
System
Fan
Mechanical Drawing
Block Diagram
91.00
87.00
0.00
4.00
91.00
87.00
95.00
91.00
87.00
Top View
0.00
4.00
0.00
4.00
IMVP7
(Vcore,Vgfx)
95.00
91.00
76.00
0.00
4.00
Ø2.70(*4 pcs)
VGA
Analog
Display
Processor
CORE CORE CORE
eDP to LVDS
DDI
Signal
Bottom View
CK505
CORE
SODIMM 1x
DDR3 1066MHz
(-B2550/-B2800)
SODIMM 1x
DDR3 800MHz
(-B2600)
Intel® Atom™ D2550 (-B2550)
Intel® Atom™ N2800 (-B2800)
Intel® Atom™ N2600 (-B2600)
Graphics
CORE
Memory
Controller
DMI
(Direct Media
Interface)
PCI 4x
14.00
IT8208M
PCI Arbiter
SATA 2.0 2x
2.00
0.00
HDA
PCIe x1 3x
4.00
33.40
95.00
87.00
C/D
A/B
0.00
12.50
70.20
Intel® NM10
Express Chipset
USB 2.0 8x
SPI
SPI
SPI Flash
LPC Bus
I2C
EC
IT8518E
LPC Bus
IDE
87.00
95.00
PCIe x1 1x
GLAN
82574L
PCIe x1 1x
4.00
4.00
76.00
83.50
Module PCB
33.40
23.40
35.40
Cooler
Module PCB The height
of the highest parts
2.00
3.50
1.60
Standoff
5.0 or 8.0 mm
Carrier Board
XIO 3130
JMB 368
CD905-B Series COM Express® Compact
Specifications
PROCESSOR
• CD905-B2550:
- Intel® AtomTM D2550, 1.86GHz, 2x 512K L2, 10W TDP, dual-core
- Cooling option: heatsink with cooling fan
• CD905-B2800:
- Intel® AtomTM N2800, 1.86GHz, 2x 512K L2, 6.5W TDP, dual-core
- Cooling option: heatsink (fanless solution)
• CD905-B2600:
- Intel® AtomTM N2600, 1.6GHz, 2x 512K L2, 3.5W TDP, dual-core
- Cooling option: heatsink (fanless solution)
WATCHDOG TIMER (optional)
• Watchdog timeout programmable via software from 1 to
256 seconds
CHIPSET
• Intel® NM10 Express chipset
DAMAGE FREE INTELLIGENCE
• Monitors CPU temperature and overheat alarm
• Monitors CPU fan speed and failure alarm
• Monitors Vcore/VGFX/1.5V voltages and failure alarm
• Watchdog timer function
SYSTEM MEMORY
• One 204-pin DDR3 SODIMM socket
• Supports DDR3 1066MHz (Intel® AtomTM D2550/N2800)
Supports DDR3 800MHz (Intel® AtomTM N2600)
• Supports single channel memory interface
• Supports up to 4GB system memory (Intel® AtomTM D2550/N2800)
Supports up to 2GB system memory (Intel® AtomTM N2600)
• DRAM device technologies: 1Gb, 2Gb and 4Gb DDR3 DRAM
technologies are supported for x8 and x16 devices, unbuffered,
non-ECC
ONBOARD GRAPHICS FEATURES
• Intel® GMA 3650 (Intel® AtomTM D2550/N2800)
Intel® GMA 3600 (Intel® AtomTM N2600)
• Supports LVDS and VGA interfaces
• LVDS: Chrontel CH7511B, 24-bit, dual channel, display resolution up
to 1920x1200
• VGA display resolution up to 1920x1200
• Supports Hardware H.264/AVC, MPEG-2 video decoder,
VC-1, DirectX 9, 1080p decoder
ONBOARD AUDIO FEATURES
• Supports High Definition Audio interface
ONBOARD LAN FEATURES
• Intel® 82574 Gigabit Ethernet Controller
• Integrated 10/100/1000 transceiver
• Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supports wire management
SERIAL ATA (SATA) INTERFACE
• Supports 2 Serial ATA interfaces
• SATA 2.0 with data transfer rate up to 3Gb/s
• Integrated Advanced Host Controller Interface (AHCI) controller
EXPANSION INTERFACES
• Supports 8 USB 2.0 ports
• Supports 4 PCIe x1 interfaces
• Supports 4 PCI interfaces
• Supports 8-bit Digital I/O
• Supports 1 IDE interface
BIOS
• 16Mbit SPI BIOS
POWER CONSUMPTION
• 24.51 W with D2550 at 1.86GHz and 1x 1GHz DDR3 SODIMM
TEMPERATURE
• Operating: 0oC to 60oC
• Storage: -20oC to 85oC
HUMIDITY
• 10% to 90%
POWER INPUT
• 12V, 5VSB, VCC_RTC (ATX mode)
12V, VCC_RTC (AT mode)
PCB
• Dimensions
- COM Express® Compact
- 95mm (3.74") x 95mm (3.74")
• Compliance
- PICMG COM Express® R2.0, Type 2
CERTIFICATIONS
• CE
• FCC Class B
• Rohs
Packing List
Optional Items
• 1 CD905-B board
• COM330-B carrier board kit
• 1 Heat sink kit
• COM630-B carrier board kit
• 1 DVD
• Cable kit for carrier board
• 1 QR (Quick Reference)
www.dfi.com
DFI reserves the right to change the specifications at any time prior to the product's release. Changes thereafter will be based on the product's revision.
Please contact your sales representative for the exact revision offered in your area. All product names mentioned are trademarks of their respective
companies. COM Express® is a Registered Trademark of the PCI Industrial Computer Manufacturers Group© October 8, 2012 DFI Inc.
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