DS2117M

Ultra3 LVD/SE SCSI Terminator

DESCRIPTION TheDS2117MUltra3LVD/SESCSITerminatorisbothaLowVoltageDifferential(LVD)andSingleEnded(SE)terminator.ThemultimodeoperationenablesthedesignertoimplementLVDincurrentproductswhileallowingtheend-userSEbackwardcompatibilitywithlegacydevices.Ifthedevic

DS2117M

Ultra2 LVD/SE SCSI端接器; \n• Complies with SCSI-1, 2, and 3, Fast SCSI, Ultra, Ultra2, Ultra160, and Ultra320 \n• Actively terminates 9 signal line pairs \n• Provides multimode low voltage differential/single-ended (LVD/SE) termination \n• Auto-selection of LVD or SE termination \n• 5% tolerance on both LVD and SE termination resistance \n• Hardware or software switchable power-down mode \n• Low power-down capacitance of 3pf \n• On-chip thermal shutdown circuitry \n• SCSI bus hot-plug compatible \n• Operating ranges:\n• 2.7V to 5.5V \n• 0°C to +70°C;

The DS2117M LVD/SE SCSI Terminator combines a low-voltage differential (LVD) and single-ended (SE) termination. The multimode operation enables the designer to combine LVD capability for current products with SE backwards-compatibility for legacy SCSI devices.\n On an LVD-only bus, the DS2117M will use LVD termination. If any SE devices are connected to the bus, then it will use SE termination. If an HVD (high voltage differential) device is connected to the bus, then it will isolate the termination from the bus. All of this is accomplished automatically inside the part by sensing the voltage on the SCSI bus DIFFSENS line. An integrated digital filter eliminates the need for external passive components on the DIFFSENS line.\n The DS2117M was designed for a low input capacitance of 3pF that is necessary to support Ultra SCSI transfer rates. Three DS2117M terminators can be used to terminate a wide SCSI bus. Applications include high-end PCs, workstations, SCSI host bus adapters, terminated cable assemblies, terminated connectors, RAID systems, and SCSI peripherals.\n All Dallas terminators feature power-down mode with extremely low quiescent consumption. Different SCSI terminators are available to match every existing SCSI protocol and to address different design concerns, such as price, board space and voltage differential.

DS2117M

Ultra3 LVD/SE SCSI Terminator

DS2117MB

Package：36-BSOP（0.295"，7.50mm 宽）；包装：管件 类别：集成电路（IC） 信号端接器 描述：IC TERM SCSI LVD/SE ULT-3 36SSOP

DS2117MB/T&R

Package：36-BSOP（0.295"，7.50mm 宽）；包装：管件 类别：集成电路（IC） 信号端接器 描述：IC TERM SCSI LVD/SE ULT-3 36SSOP

DS2117MX/T&R

Package：36-BSOP（0.295"，7.50mm 宽）；包装：管件 类别：集成电路（IC） 信号端接器 描述：IC TERM SCSI LVD/SE ULT-3 FCHIP