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DS2117M

Features: Fully compliant with Ultra2, Ultra3, andUltra 160/m SCSI Provides Multimode Low VoltageDifferential/Single-Ended (LVD/SE)termination for 9 signal line pairs Auto-selection of LVD or SE termination 5% tolerance on SE and LVD terminationresistance Low power down capacitance of 3 pF Onboar...

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SeekIC No. : 004328780 Detail

DS2117M: Features: Fully compliant with Ultra2, Ultra3, andUltra 160/m SCSI Provides Multimode Low VoltageDifferential/Single-Ended (LVD/SE)termination for 9 signal line pairs Auto-selection of LVD or SE te...

DS2117M Data Sheet

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Part Number:
DS2117M
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
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Product Details

Description



Features:

  Fully compliant with Ultra2, Ultra3, andUltra 160/m SCSI
  Provides Multimode Low VoltageDifferential/Single-Ended (LVD/SE)termination for 9 signal line pairs
  Auto-selection of LVD or SE termination
  5% tolerance on SE and LVD terminationresistance
  Low power down capacitance of 3 pF
  Onboard thermal shutdown circuitry
  SCSI bus hot plug compatible
  Fully supports actively negated SE SCSIsignals


Pinout

Connection Diagram


Description

The DS2117M Ultra3 LVD/SE SCSI Terminator is both a Low Voltage Differential (LVD) and Single-Ended (SE) terminator. The multimode operation enables the designer to implement LVD in currentproducts while allowing the end-user SE backward compatibility with legacy devices. If the device isconnected in an LVD-only bus, the DS2117M will use LVD termination. If any SE devices are connectedto the bus, the DS2117M will use SE termination. This is accomplished automatically inside the part bysensing the voltage on the SCSI bus DIFFSENS line.

For the LVD termination, the DS2117M integrates two current sources with nine precision resistorstrings. For the SE termination, one regulator and nine precision 110-ohm resistors are used. ThreeDS2117M terminators are needed for a wide SCSI bus.




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