SCSI Expander ASIC PAR5780

 
 

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SCSI Expander ASIC PAR5780  


SCSI Expander ASIC provides a conversion from single-ended SCSI to differential (HVD) SCSI, and vice versa, with isolation between the two ports.
 
 
SCSI Expander ASIC
 
 
   Paralan's SCSI Expander ASIC PAR5780: provides conversion from single-ended SCSI to differential SCSI and vice versa, with isolation between two ports. Does not consume a SCSI address or node, making it completely transparent in a SCSI system
Completely supports SCSI-1,-2,-3Completely supports SCSI-1,-2,-3
Completely transparentCompletely transparent
Supports 40-Mbyte/sec UltraSCSI throughputSupports 40-Mbyte/sec UltraSCSI throughput
Isolates the bus into two SCSI segmentsIsolates the bus into two SCSI segments
Custom Modifications to Your Specs. SCSI expander products and our newest LVD version. Includes: SCSI Converters/Extenders, Fiber Optic Extenders, SCSI Bus RegeneratoRs, SCSI ASICs, SCSI Quiet Cable and SCSI Cable TestersOEMs  Custom Modifications to Your Specs

The Paralan SCSI Expander ASIC (PAR5780) provides a conversion from single-ended SCSI to differential (HVD) SCSI, and vice versa, with isolation between the two ports. It may also be used in a single-ended-to-single-ended mode where the intent is to act as a switch or as a regenerator of the SCSI input on one side to the other side.

Isolation is provided between the two ports such that it is possible for devices on one segment to be removed or "hot swapped" and not affect devices on the other segment.

The Expander ASIC does not consume a SCSI address or node, making it completely transparent in a SCSI system. It supports 40-Mbyte/sec (wide) SCSI transfers at UltraSCSI rates and throughput. All protocols of SCSI-1,-2 and -3 are fully supported.

The PAR5780 is currently being used in Paralan's Single-ended/HVD SCSI Converters and SCSI RegeneratoR™s.

For a printable version of this information, please see the PDF of this data sheet.
 

SCSI Expander ASIC PAR5780 Dimensions Drawing

Specifications- PAR 5780 SCSI Expander ASIC
(For additional information see the Application Note Design Considerations)

  
 

 

Chip Performance:
 
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VIL Low level input voltage
CMOS Level
TTL Level
         1.0
0.8
V
V
VIH High level input voltage
CMOS Level
TTL Level
   3.5
2.0
      V
V
IIL Low level input current VIN = VSS
No pull-up
      1.0 ľA
IIH High level input current VIN = VPP
No pull-up
      1.0 ľA
VOL Low level output voltage
Type 2
Type 3
IOL = 6 mA
IOL = 12 mA
      VSS +0.4 V
VSS +0.4 V
V
V
VOH High level output voltage
Type 2
Type 3
IOH = 3 mA
IOH = 6 mA
VDD -0.4 V
VDD -0.4 V
      V
V
RPU Pull-up Resistor VDD = 5.0 50    500 k ohms
RPD Pull-down Resistor VDD = 5.0 50    500 k ohms
IOZ Tri-state leakage current          1.0 ľA
CIN Input capacitance       4    pF
COUT Output capacitance       6    pF
CBID Bidirectional pad capacitance       10    pF
Absolute Maximum Ratings

Parameter Symbol Limits Unit
DC Supply Voltage VDD VSS -0.3 to 7.0 V
Input Voltage VIN VSS -0.3 to VDD +0.3 V
Output Voltage VOUT VSS -0.3 to VDD +0.3 V
Storage Temperature TSTG -65 to +150 °C
Recommended Operating Conditions

Parameter Symbol Min Typ Max Unit
Supply Voltage VDD 4.50 5.0 5.50 V
Input Voltage VIN VSS    VDD V
Operating Temperature TOPR -20    85 °C
 

9 TO 5 COMPUTER: Global Value-Added Distribution of NEW, used and refurbished computer periphery by a family-owned and operated company since 1979- distributing internationally computer related peripherals on the new, used and refurbished levels. HP, Compaq, IBM, CISCO, 3COM, APPLE, SEAGATE, and other major branded products as well as a MAJOR focus on Mass Storage related drives, media, storage racks, tri-optic barcode labels, libraries, autoloaders, duplicators, jukeboxes, HBA's, JBOD, Raid, SAN, NAS and software solutions.

As our stock of NEW, used and refurbished storage equipment changes daily, be sure to use our online chat service to get "real time" pricing from a knowledgeable sales technician. We also offer the lowest priced storage media on the net. Contact us now for drive rental, repair, duplication, software solutions or professional consultation.

*Buying refurbished can be better than buying new because flaws have been found and fixed, once it is deemed to be complete and in good working order it is repackaged to be sold at a lower price as refurbished.

© Copyright 2003.
*Price and availabilities subject to change without any notice. Not responsible for typographical errors.


Paralan SCSI products, SCSI Expander ASIC PAR5780