82551IT Fast Ethernet PCI
Controller
Networking Silicon - 82551IT
Datasheet
Product Features
1
This devi ce is lead-free. That is, lead has not been intentionally added, but lead may still exist as an
impurity at <1000 ppm. The Material Declaration Data Sheet, which includes lead impurity levels and the
concentration of other Restriction on Hazardous Substances (RoHS)-banned materials, is available at:
ftp://download.intel.com/design/packtech/material_content_IC_Package.pdf#pagemode=bookmarks
In addition, this device has been tested and conforms to the same parametric specifications as previous
versions of the device.
For m ore information rega rding lead-free pr oducts from Intel Corp oration, contact your Intel Field Sales
representative.
Enhanced IP Protocol Support
— TCP, UDP, IPv4 checksum offload
— Received chec ksum verification
Quality of Service (QoS)
— Multiple priority transmit queues
Optimum Integration for Lowest Cost Solution
— Integrated IEEE 802.3 10BASE-T and
100BASE-TX compatible PHY
— 32-bit PCI master interface
— Thin BGA 15mm
2
package
Integrated power management functions
— ACPI and PCI power management standards
compliance
— W ake on “interesting” packets and link status
change support
PHY dete cts polarity , MDI-X, and cable lengths.
Auto MDI, MDI-X crossover at all speeds
XOR tree mode support
High Performance Networking Functions
— Early release
— 8255x controller family chained memory
structure
— Improved dynamic transmit chaining with
multiple prioriti es tra n smit queues
— Full pin compatibility with the 82559 and
82559ER controllers
— Backward compatible software to 8255xER
controllers
— Full duplex support at 10 and 100 Mbps
— IEEE 802.3u auto-negotiation support
— 3 KB transmit and receive FIF Os
— Fast back-to-back transmission support with
minimum interframe spacin g
— IEEE 802.3x 100BASE-TX flow control
support
— Adaptive Technology
Low Power Features
— Advanced Power Management (APM)
capabilities
— Low power 3.3 V device
— Efficient dynamic standby mode
— Deep power-down support
— Clockrun protocol support
82551IT Enhancements
— Wider operating temperature range
— Improved bit error rate performance
— HWI support
— Deep power-down state power reduction
Lead-free
1
196-pin Ball Grid Array (BGA).
Devices that are lead-free are marked with a
circled “e1” and have the product code:
LUxxxxxx.
317801-004
Revision 4.1
