


NuBus 90
Available on old Apple Macintosh computers.
 (at the card)
 (at the computer)
UNKNOWN CONNECTOR at the card.
UNKNOWN CONNECTOR at the computer.
Row A
  
    | Pin | 
    Name | 
    Description | 
  
  
    | 1 | 
    -12 V | 
    -12 VDC | 
  
  
    | 2 | 
    SB0 | 
      | 
  
  
    | 3 | 
    /SPV | 
      | 
  
  
    | 4 | 
    /SP | 
      | 
  
  
    | 5 | 
    /TM1 | 
      | 
  
  
    | 6 | 
    /AD1 | 
    Address/Data 1 | 
  
  
    | 7 | 
    /AD3 | 
    Address/Data 3 | 
  
  
    | 8 | 
    /AD5 | 
    Address/Data 5 | 
  
  
    | 9 | 
    /AD7 | 
    Address/Data 7 | 
  
  
    | 10 | 
    /AD9 | 
    Address/Data 9 | 
  
  
    | 11 | 
    /AD11 | 
    Address/Data 11 | 
  
  
    | 12 | 
    /AD13 | 
    Address/Data 13 | 
  
  
    | 13 | 
    /AD15 | 
    Address/Data 15 | 
  
  
    | 14 | 
    /AD17 | 
    Address/Data 17 | 
  
  
    | 15 | 
    /AD19 | 
    Address/Data 19 | 
  
  
    | 16 | 
    /AD21 | 
    Address/Data 21 | 
  
  
    | 17 | 
    /AD23 | 
    Address/Data 23 | 
  
  
    | 18 | 
    /AD25 | 
    Address/Data 25 | 
  
  
    | 19 | 
    /AD27 | 
    Address/Data 27 | 
  
  
    | 20 | 
    /AD29 | 
    Address/Data 29 | 
  
  
    | 21 | 
    /AD31 | 
    Address/Data 31 | 
  
  
    | 22 | 
    GND | 
    Ground | 
  
  
    | 23 | 
    GND | 
    Ground | 
  
  
    | 24 | 
    /ARB1 | 
      | 
  
  
    | 25 | 
    /ARB3 | 
      | 
  
  
    | 26 | 
    /ID1 | 
      | 
  
  
    | 27 | 
    /ID3 | 
      | 
  
  
    | 28 | 
    /ACK | 
      | 
  
  
    | 29 | 
    +5 V | 
    +5 VDC | 
  
  
    | 30 | 
    /RQST | 
      | 
  
  
    | 31 | 
    /NMRQ | 
      | 
  
  
    | 32 | 
    +12 V | 
    +12 VDC | 
  
Row B
  
    | Pin | 
    Name | 
    Description | 
  
  
    | 1 | 
    -12 V | 
    -12 VDC | 
  
  
    | 2 | 
    GND | 
    Ground | 
  
  
    | 3 | 
    GND | 
    Ground | 
  
  
    | 4 | 
    +5 V | 
    +5 VDC | 
  
  
    | 5 | 
    +5 V | 
    +5 VDC | 
  
  
    | 6 | 
    +5 V | 
    +5 VDC | 
  
  
    | 7 | 
    +5 V | 
    +5 VDC | 
  
  
    | 8 | 
    /TM2 | 
      | 
  
  
    | 9 | 
    /CM0 | 
      | 
  
  
    | 10 | 
    /CM1 | 
      | 
  
  
    | 11 | 
    /CM2 | 
      | 
  
  
    | 12 | 
    GND | 
    Ground | 
  
  
    | 13 | 
    GND | 
    Ground | 
  
  
    | 14 | 
    GND | 
    Ground | 
  
  
    | 15 | 
    GND | 
    Ground | 
  
  
    | 16 | 
    GND | 
    Ground | 
  
  
    | 17 | 
    GND | 
    Ground | 
  
  
    | 18 | 
    GND | 
    Ground | 
  
  
    | 19 | 
    GND | 
    Ground | 
  
  
    | 20 | 
    GND | 
    Ground | 
  
  
    | 21 | 
    GND | 
    Ground | 
  
  
    | 22 | 
    GND | 
    Ground | 
  
  
    | 23 | 
    GND | 
    Ground | 
  
  
    | 24 | 
    /CLK2X | 
      | 
  
  
    | 25 | 
    STDBYPWR | 
      | 
  
  
    | 26 | 
    /CLK2XEN | 
      | 
  
  
    | 27 | 
    /CBUSY | 
      | 
  
  
    | 28 | 
    +5 V | 
    +5 VDC | 
  
  
    | 29 | 
    +5 V | 
    +5 VDC | 
  
  
    | 30 | 
    GND | 
    Ground | 
  
  
    | 31 | 
    GND | 
    Ground | 
  
  
    | 32 | 
    +12 V | 
    +12 VDC | 
  
Row C
  
    | Pin | 
    Name | 
    Description | 
  
  
    | 1 | 
    /RESET | 
    Reset | 
  
  
    | 2 | 
    SB1 | 
      | 
  
  
    | 3 | 
    +5 V | 
    +5 VDC | 
  
  
    | 4 | 
    +5 V | 
    +5 VDC | 
  
  
    | 5 | 
    /TM0 | 
      | 
  
  
    | 6 | 
    /AD0 | 
    Address/Data 0 | 
  
  
    | 7 | 
    /AD2 | 
    Address/Data 2 | 
  
  
    | 8 | 
    /AD4 | 
    Address/Data 4 | 
  
  
    | 9 | 
    /AD6 | 
    Address/Data 6 | 
  
  
    | 10 | 
    /AD8 | 
    Address/Data 8 | 
  
  
    | 11 | 
    /AD10 | 
    Address/Data 10 | 
  
  
    | 12 | 
    /AD12 | 
    Address/Data 12 | 
  
  
    | 13 | 
    /AD14 | 
    Address/Data 14 | 
  
  
    | 14 | 
    /AD16 | 
    Address/Data 16 | 
  
  
    | 15 | 
    /AD18 | 
    Address/Data 18 | 
  
  
    | 16 | 
    /AD20 | 
    Address/Data 20 | 
  
  
    | 17 | 
    /AD22 | 
    Address/Data 22 | 
  
  
    | 18 | 
    /AD24 | 
    Address/Data 24 | 
  
  
    | 19 | 
    /AD26 | 
    Address/Data 26 | 
  
  
    | 20 | 
    /AD28 | 
    Address/Data 28 | 
  
  
    | 21 | 
    /AD30 | 
    Address/Data 30 | 
  
  
    | 22 | 
    GND | 
    Ground | 
  
  
    | 23 | 
    /PFW | 
      | 
  
  
    | 24 | 
    /ARB0 | 
      | 
  
  
    | 25 | 
    /ARB2 | 
      | 
  
  
    | 26 | 
    /ID0 | 
      | 
  
  
    | 27 | 
    /ID2 | 
      | 
  
  
    | 28 | 
    /START | 
      | 
  
  
    | 29 | 
    +5 V | 
    +5 VDC | 
  
  
    | 30 | 
    +5 V | 
    +5 VDC | 
  
  
    | 31 | 
    GND | 
    Ground | 
  
  
    | 32 | 
    /CLK | 
    Clock | 
  
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10