LXT9863

LXT9883/9863 Advanced 10/100 Unmanaged Repeater Datasheet The LXT9883 is an advanced, 3.3V, 8-port 10/100 repeater. The LXT9883 is compatible with previous generations of Intel repeaters from the LXT980 and LXT918 families. Eight ports directly support 100BASE-TX/10BASE-T copper media. Two additional Media Independent Interface (MII) ports (10/100Mbps selectable) connect to Media Access Controllers (MACs) for bridge/switch applications. The LXT9863 offers the same features and functionality in a six-port device. This data sheet uses the singular designation “LXT98x3” to refer to both devices. The LXT98x3 provides auto-negotiation with parallel detection for the PHY ports. The LXT98x3 provides two internal repeater state machines—one operating at 10 Mbps and one at 100 Mbps. Once configured, the LXT98x3 automatically connects each port to the appropriate repeater. The LXT98x3 also provides two Inter-Repeater Backplanes (IRBs) for expansion — one operating at 10 Mbps and one at 100 Mbps. Up to 240 twisted-pair and MII ports can logically be combined into one repeater. Product Features s s s s Six or eight 10/100 ports with integrated twisted-pair PHYs including integrated filters. Two 10/100 MIIs for bridging. Independent segments for 10Mbps and 100 Mbps operation. Cascadable Inter-Repeater Backplanes (IRBs), with option for 5V stacking compatibility. s s s Integrated LED drivers with user-selectable modes. Available in 208-pin QFP package. Operating temperature range: 0-...