(31 PCS) DS2120B DALLAS Ultra3 LVD SCSI Terminator 36-PIN SSOP
Tax included.
THIS LISTING IS FOR (31 PC) OF DS2120B BY DALLAS SEMICONDUCTOR
Ultra3 LVD SCSI Terminator 36-PIN SSOP (31 PER TUBE)
Ultra3 LVD SCSI Terminator 36-PIN SSOP (31 PER TUBE)
FEATURES
Fully Compliant with Ultra3, Ultra160,
Ultra320, and Ultra2 (LVD only) SCSI
Provides Low-Voltage Differential (LVD)
Termination for Nine Signal Line Pairs
Zero Temperature Coefficient Termination
Resistors
Autoselection of LVD Termination
5% Tolerance on LVD Termination
Resistance
Low Power-Down Capacitance of 3pF
Built-In Mode Change Filter/Delay
On-Board Thermal Shutdown Circuitry
SCSI Bus Hot Plug Compatible
APPLICATIONS
Raid Systems
SCSI Host Bus Adapter Cards (HBA)
Servers
SCSI Cables
Network Attached Storage (NAS)
Storage Area Networks (SANs)
GENERAL DESCRIPTION
The DS2120 Ultra3 LVD SCSI terminator is a low-volta
ge differential (LVD) terminator. If the device is
connected in an LVD-only bus, the DS2120 uses LVD
termination. If any single-ended (SE) or high-
voltage differential (HVD) devices
are connected to the bus, the DS
2120 disconnects from the bus. This
is accomplished inside the part au
tomatically by sensing the voltage
on the SCSI bus DIFFSENS line.
For the LVD termination, the DS2120 integrates two curre
nt sources with nine precision resistor strings.
Three DS2120 terminators are needed for a wide SCSI bus.
