Product Summary

The 82551IT is a Fast Ethernet PCI Controller. It provides excellent performance by offloading TCP, UDP and IP checksums and supports TCP segmentation off-load for operations such as Large Send. The 82551IT provides an extended operating temperature in addition to all of the same capabilities and features as the 82551ER to address applications requiring a wider operating temperature range.

Parametrics

82551IT absolute maximum ratings: (1)Ambient Temperature: -40 to 85℃; (2)Storage Temperature: -65 to 140℃; (3)Outputs and Supply Voltages (except PCI and SMB): -0.5 V to 5.0 V; (4)PCI and SMB Output Voltages: -0.50 V to 5.25 V; (5)Transmit Data Output Voltage: -0.5 V to 8.0 V; (6)Input Voltages (except PCI and SMB): -1.0 V to 5.0 V; (7)PCI and SMB Input Voltages: -0.5 V to 6.0 V.

Features

82551IT features: (1)Enhanced IP Protocol Support; (2)Quality of Service (QoS); (3)Optimum Integration for Lowest Cost Solution; (4)Integrated power management functions; (5)PHY detects polarity, MDI-X, and cable lengths. Auto MDI, MDI-X crossover at all speeds; (6)XOR tree mode support; (7)High Performance Networking Functions; (8)Low Power Features; (9)82551IT Enhancements.

Diagrams

82551IT dimension