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UCC5629

Features: • Auto Selection Single Ended (SE) or Low Voltage Differential (LVD) Termination• Meets SCSI-1, SCSI-2, SCSI-3, SPI, Ultra (Fast-20), Ultra2 (SPI-2 LVD) and Ultra3 Standards• 2.7V to 5.25V Operation• Differential Failsafe Bias• Thermal packaging for low junc...

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SeekIC No. : 004536157 Detail

UCC5629: Features: • Auto Selection Single Ended (SE) or Low Voltage Differential (LVD) Termination• Meets SCSI-1, SCSI-2, SCSI-3, SPI, Ultra (Fast-20), Ultra2 (SPI-2 LVD) and Ultra3 Standards...

UCC5629 Data Sheet

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Part Number:
UCC5629
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Auto Selection Single Ended (SE) or
  Low Voltage Differential (LVD) Termination
• Meets SCSI-1, SCSI-2, SCSI-3, SPI,
  Ultra (Fast-20), Ultra2 (SPI-2 LVD)
  and Ultra3 Standards
• 2.7V to 5.25V Operation
• Differential Failsafe Bias
• Thermal packaging for low junction
  temperature and better MTBF.
• Reversed Polarity Disconnect


Pinout

Connection Diagram


Specifications

TRMPWR Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6V
Signal Line Voltage . . . . . . . . . . . . . . . . . . . . . . . 0V to TRMPWR
Package Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W
Storage Temperature . . . . . . . . . . . . . . . . . . . 65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . . . 55°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C
Recommended Operating Conditions . . . . . . . . . 2.7V to 5.25V
Currents are positive into negative out of the specified terminal.
Note: Consult Packaging Section of Databook for thermal limitations
and considerations of package.


Description

The UCC5629 Multimode SCSI Terminator provides a smooth transition into the next generation of the SCSI Parallel Interface (SPI-2). It automatically senses the bus, via DIFFB, and switches the termination to either single ended (SE) or low voltage differential (LVD) SCSI, dependent on which type of devices are connected to the bus. The UCC5629 can not be used on a HVD, EIA485, differential SCSI bus. If the UCC5629 detects a HVD SCSI device, it switches to a high impedance state.

The Multimode terminator contains all functions required to terminate and auto detect and switch modes for SPI-2 bus architectures. Single Ended and Differential impedances and currents are trimmed for maximum effectiveness. Fail Safe biasing is provided to insure signal integrity. Device/Bus type detection circuitry is integrated into the terminator to provide automatic switching of termination between single ended and LVD SCSI and a high impedance for HVD SCSI. The multimode function provides all the performance analog functions necessary to implement SPI-2 termination in a single monolithic device.

The UCC5629 is offered in a 48 pin LQFP package for a temperature range of 0°C to 70°C.




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