Microsemi Corporation
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