DESCRIPTION

The LX5251 is a multimode SCSI terminator that is compatible with the SCSI SPI-2 (Ultra2), SCSI SPI-3 (Ultra3 or Ultra160), and SCSI SPI-4 (Ultra320) specifications 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

Compliant with SCSI SPI-2 (Ultra2), SPI-3 (Ultra160), and SPI-4 (Ultra320)

Auto-Selectable LVD or Single Ended Termination

Fast Response, No Output 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 Single-Ended Operation

Current Limit and Thermal Protection

Hot-Swap Compatible (Single Ended)

Available in 24-pin TSSOP Package