Description
The HDMP-0450 is a Quad Port Bypass Circuit (PBC) which provides a low-cost, low-power physical-layer solution for Fibre Channel Arbitrated Loop (FC-AL) disk array configurations. By using a PBC such as the HDMP-0450, hard disks may be pulled out or swapped while other disks in the array are available to the system.

Features
• Supports 1.0625 GBd Fibre Channel operation
• Supports 1.25 GBd Gigabit Ethernet (GE) operation
• Quad PBC in one package
• Signal detect on FM_NODE[0] input
• Equalizers on all inputs
• High speed LVPECL I/O
• Buffered Line Logic (BLL) outputs (no external bias resistors required)
• 0.5 W typical power at VCC = 3.3 V
• 44 Pin, 10 mm, low-cost plastic QFP package

Applications
• RAID, JBOD, BTS cabinets
• Two 2:1 muxes
• Two 1:2 buffers
• 1 => N gigabit serial buffer
• N => 1 gigabit serial mux