                         SEAGATE TECHNOLOGY, INC.
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                            (C)opyright 1993

ST-1980N SCSI-2 Fast (Hawk 1)

  ͻ
   REAR VIEW 
  ͼ

         50 pin I/O Cable Connection
         
    J11 /\    TOP (HDA)
     ͵:::::::::::::::::::::::::ͳ 0 0 0 0 
      ; 5GG12    BOTTOM
       1Ŀ 1Ŀ 1Ŀ
         
        Terminating Resistors



  ͻ
   RIGHT SIDE VIEW 
  ͼ


BACK   ͸       J2  12345678                    TOP (HDA)  FRONT
 OF    J1PWA OF
DRIVE  ;           ::::::::                    BOTTOM     DRIVE
                     
   Terminator Power ٳ Reserved
  ڴTerminator Power ٳ Start Delay (12 secs * ID)
        Factory Use ٳ Motor Start
      Parity Enable  Write Protect
  
  
   Ŀ
  Ĵ Termination Power-source Table 
    Ŀ
    ........PWA edge          
                                                  
      1 2     1 2      1 2                        
     ķ       ķ    ķ  A Drive Supplies Bus 
                B Drive Supplies Own 
                   C Bus Supplies Drive 
       A       B        C                         
    Default


  ͻ
   LEFT SIDE VIEW 
  ͼ             If these ID jumpers are used,
                                 then ID jumpers shown in front
                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 1 ͸BACK
   OF   PWA͵:::͵J1 OF
  DRIVE                BOTTOM                       ; ;DRIVE
                                                     
                   Note:  On early drives     ID 1 ٳ ID 4
                   with PCB# 75782395 or           ID 2
                   #75782485 ID jumpers are ID 4       ID 1
                   reversed.               



  ͻ
   FRONT VIEW 
  ͼ


                      TOP (HDA)   J6  1
     PWA͵::::::
                 *    BOTTOM          ;
                                      123456
            LED                      
                                  ID 4 ٳ Reserved
                                  ID 2 ٳ Remote LED (pin-3 +5v)
                                  ID 1  Spindle Synchronization
                                               (pin-6 REF SIG+)
      If these ID jumper are used, then
         ID jumpers shown in left side
         view ARE NOT USED.


                              ST - 1980N
                              Hawk 1 

       UNFORMATTED CAPACITY (MB) ________________1,021
       FORMATTED CAPACITY (xx SECTORS) (MB) _____860
       AVERAGE SECTORS PER TRACK ________________74
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________22,490
       CYLINDERS ________________________________1,730 (user)
       HEADS ____________________________________13
       DISCS (3.5 in) ___________________________7
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec) _______24.4 to 40.6
       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async
       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
       SPINDLE SPEED (RPM) ______________________5,411
       AVERAGE LATENCY (mSEC) ___________________5.4
       BUFFER ___________________________________256 Kbyte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 Fast
       BYTES PER TRACK __________________________45,434 avg.
       TPI (TRACKS PER INCH) ____________________2,150
       AVERAGE ACCESS (ms) (read/write)__________9.9/10.6
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________1.5/2.0
       MAX FULL SEEK (ms) _______________________19.0/20.0
       MTBF (power-on hours) ____________________200,000
       SHOCK (G's):
                operating (Read/Write) __________10
                nonoperating ____________________60
       ACOUSTICS (typ/max dBA) __________________/
       POWER REQUIREMENTS: +12V START-UP (amps) _2.0
                           +12V TYPICAL (amps) __0.5
                           +5V TYPICAL (amps) ___0.4
                           TYPICAL (watts) ______11
                           IDLE (watts) _________9
       LANDING ZONE (cyl)________________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 1 spare sector per track
 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product
offerings or specifications. (08/09/94)

