SS7519 Datasheet PDF | Silicon Standard

Silicon Standard SS7519

the SS7519 integrates two current sources with nine accuracy resistor strings. This architecture yields a 105Ω ±5% differential and 226Ω ±10% common mode impedance. If the SS7519 detects a HVD SCSI device on the bus, all the signals will be set to a high impedance state.

Part No.	SS7519
Datasheet	SS7519 Download
Manufacturer	Silicon Standard
Description	Multi-mode SCSI Terminator
Buy	Stock & Price

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, A fail-safe bias of 110mV is sustained when no drivers are connected to the SCSI bus.

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. The Multimode terminator contains all the functions required to terminate and auto detect for SCSI devices without hardware fluctuation. Auto-Selectable is achieved by using voltage detection on the DIFFSENSE signal. The SS7519 senses the DIFFSENSE line while sourcing the DIFFSENSE signal with LVD levels.