General Description

The DS2127 Ultra3 LVD/SE SCSI terminator provides low-voltage differential (LVD)/single-ended (SE) terminations for 14 SCSI lines. Through the voltage on the DIFF_CAP pin, the device detects the types of drivers on the bus. If the device is connected in an LVD-only bus, the DS2127 provides LVD termination.

Features

♦ Fully Compliant with Ultra2, Ultra3, Ultra160, and Ultra320 SCSI Standards

♦ Provides LVD/SE Termination for 14 Signal Pairs

♦ Auto-Selection of LVD or SE Termination

♦ 5 Tolerance on SE and LVD Termination Resistance

♦ Low 3pF Power-Down Capacitance

♦ Built-In Mode-Change Filter/Delay

♦ On-Board Thermal-Shutdown Circuitry

♦ SCSI Bus Hot-Plug Compatible

♦ Fully Supports Actively Negated SE SCSI Signals

Applications

    SCSI Array Backplane

    SCSI Cables