Product Features

• Eight 10BASE-T/100BASE-TX/1000BASE-T Gigabit Ethernet (GbE) transceivers in a single fully integrated 90-nm CMOS chip 

• Reverse MDI capability 

• Low power: 500 mW per port 

• SGMII and SerDes MAC interface options 

• Internal 100Ω twisted-pair termination resistors 

• Supports 10/100/1000BASE-T and 100BASE-FX on copper interface 

• Enhanced LED driver modes 

• Fully compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab standards 

• Line-side loopback 

• Low EMI emissions 

• Hardware-accelerated CableChecker™ diagnostics 

• Robust cable-sourced electrostatic discharge (CESD) tolerance 

• Support for jumbo packets 

• IEEE 1149.1 (JTAG) and 1149.6 (AC-JTAG) boundary scan 

• Ethernet@Wirespeed™ and Super-Isolate mode support

Product BENEFITS

• Energy efficient, low-cost, and low-power octal-port integration enables single-row, high-port density switches 

• Ability to reverse MDI, easing board design and simplifying layout in high port density switch designs 

• Low-cost solution for unmanaged switch applications 

• Lowers system BOM cost and simplifies system design 

• Internal 100Ω twisted-pair termination resistors eliminate need for external resistors, saving eight resistors per port 

• Provides compatibility with IEEE standard devices operating at 10 Mbps, 100 Mbps, and 1000 Mbps at half-duplex and fullduplex 

• Eases system-level debug 

• Enables use of low-cost magnetics, even in high-density (48+) designs 

• CableChecker characterizes cable plant condition and immediately indicates cabling issues 

- CableChecker detection of cable plant impairments 

- Prevents erroneous equipment return due to bad cable plants 

- Prevents manufacturing fallout due to bad cable plants 

• Operates with larger packets for wider range of packetprotocol support and improved efficiency 

• Ease of manufacturing with JTAG support, simplified power supply, and multiple MAC interfaces

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