DESCRIPTION

The LX5240 is a multimode SCSI terminator with plug-and-play capability that conforms to the SCSI Parallel Interconnect-2 (SPI-2) specification developed by the T10 standards committee for low voltage differential (LVD) termination, while providing backwards compatibility to the SCSI, SCSI-2, and SPI single-ended specifications. Multimode compatibility permits the use of legacy devices on the bus without hardware alterations. Automatic mode selection is achieved through voltage detection on the diffsense line.

KEY FEATURES

■ Auto-Selectable LVD Or Single-Ended Termination

■ 3.0pF Maximum Disabled Output Capacitance

■ Fast Response, No External Capacitors Required

■ Compatible With Active Negation Drivers

■ 15μA Supply Current In Disconnect Mode

■ Logic Command Disconnects All Termination Lines

■ Diffsense Line Driver

■ Ground Driver Integrated For SingleEnded Operation

■ Current Limit And Thermal Protection

■ Hot-Swap Compatible (Single-Ended)

■ Compatible With SCSI 1, 2, 3, Fast-20, And The Pending SPI-2 LVD

■ Plug And Play Compatible

■ See LX5245/5246, LVD Termination Only