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SS7519 - Multi-mode SCSI Terminator

Description

The SS7519 multimode SCSI terminator is both a single-ended and a low voltage differential terminator that meets the specifications of SCSI Parallel Interface (SPI-4).

The SS7519 also provides backward compatibility to the SCSI-1, SCSI-2 and Single-Ended specifications.

Features

  • !" Meets SCSI-1, SCSI-2, Ultra3 and Ultra320 Standards. !" Auto-selectable Multimode single-ended or Low Voltage Differential termination. !" Current limit and thermal shutdown protection. !" Ground driver integrated for single-ended operation !" Compatible with active-negation drivers. Single-Ended resistor will maintain 110Ω ± 5 % . For LVD termination, the SS7519 integrates two current sources with nine accuracy resistor strings. This architecture yields a 105Ω ±5% differential and 226Ω ±10%.

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Datasheet Details

Part number SS7519
Manufacturer Silicon Standard
File Size 348.66 KB
Description Multi-mode SCSI Terminator
Datasheet download datasheet SS7519 Datasheet

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Full PDF Text Transcription

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SS7519 Multi-mode SCSI Terminator FEATURES !" Meets SCSI-1, SCSI-2, Ultra3 and Ultra320 Standards. !" Auto-selectable Multimode single-ended or Low Voltage Differential termination. !" Current limit and thermal shutdown protection. !" Ground driver integrated for single-ended operation !" Compatible with active-negation drivers. Single-Ended resistor will maintain 110Ω ± 5 % . For LVD termination, the SS7519 integrates two current sources with nine accuracy resistor strings. This architecture yields a 105Ω ±5% differential and 226Ω ±10% common mode impedance. A fail-safe bias of 110mV is sustained when no drivers are connected to the SCSI bus. If the SS7519 detects a HVD SCSI device on the bus, all the signals will be set to a high impedance state.
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