SEAGATE TECHNOLOGY, INC.
       Customer Technical Support FAX Network +1 408 438-8137
     Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
/----------------------------------+---------------------------------\
| United States    +1 408 438-8771 |  United Kingdom +44 628 478011  |
+----------------------------------+---------------------------------|
| Germany         +49  89 140-9331 |  Singapore      +65   227-2217  |
\----------------------------------+---------------------------------/
                            (C)opyright 1993



ST-3620W Fast Wide SCSI-2 (Hawk 1LP)

  +===========+
  # REAR VIEW #  (ST-3620W)
  +===========+
        (TOP)                   Auxiliary
          ___________________  /--  -1\/=========\
        =( ×××××××××××××××××1)=|::::::|| 0 0 0 0 #=
          \------------|----/  \  --  /\-5-G-G-12/
       68 pin I/O Cable/        ||||||
                                ||||||
                                ||||||
                                ||||||
        Auxiliary option header ||||||
           pin-11 +5v  ---------/|||||
           pin-10 GND  ----------/||||
           SCSI ID = 8 -----------/|||
           SCSI ID = 4 ------------|||
            or pin-6 REFIND+ ------/||
           SCSI ID = 2 -------------/|
           SCSI ID = 1 --------------/
           SCSI ID = 0 (none)


  +=================+
  # RIGHT SIDE VIEW #  (ST-3620W)
  +=================+


BACK   #=#       J2  12345678                    TOP (HDA)  FRONT
 OF    J1#======================P=W=A======================= OF
DRIVE  \=/           ::::::::                    BOTTOM     DRIVE
                     ||||||||
   |Terminator Power /||||||\ Reserved
  /|Terminator Power -/||||\- Start Delay (12 secs * ID)
  |     Enable T-Res --/||\-- Motor Start
  |    Parity Enable ---/\--- Write Protect
  |
  |
  | /--------------------------------\
  \-| Termination Power-source Table |
    +--------------------------------+-------------\
    |=====....=====....=====PWA edge=====          |
    |                                              |
    |  1 2     1 2      1 2                        |
    | #-#       #-#    #---#  A Drive Supplies Bus |
    | #o#o     o#o#    #o-o#  B Drive Supplies Own |
    | #o#o     o#o#     o o   C Bus Supplies Drive |
    |   A       B        C                         |
    \---------Default------------------------------/


  +============+
  # FRONT VIEW #  (ST-3620W)
  +============+


                      TOP (HDA)   J6  #=====1#
     ==P=W=A==========================#::::::#=
                 *    BOTTOM          \======/
                 |                     ||||||
            LED -/                     ||||||
                                       ||||||
                                       ||||||
               Auxiliary option header ||||||
                  pin-11 +5v  ---------/|||||
                  pin-10 GND  ----------/||||
                  SCSI ID = 8 -------+---/|||
                   or pin-8 BUSY ----/    |||
                  SCSI ID = 4 -------+----/||
                   or pin-6 REFIND+ -/     ||
                  SCSI ID = 2 -------------/|
                  SCSI ID = 1 --------------/
                  SCSI ID = 0 (none)

      If these ID jumper are used, then
         ID jumpers shown in left side view J5
         or 80 pin I/O cable ARE NOT USED.



                            ST-3620W
                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________651.8
       FORMATTED CAPACITY (xx SECTORS) (MB) _____545.9
       AVERAGE SECTORS PER TRACK ________________78
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________24,300
       CYLINDERS ________________________________2,700 user
       HEADS ______PHYSICAL______________________5
       DISCS (3.5 in) ___________________________3
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________24.4 to 42.4
       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync
       SPINDLE SPEED (RPM) ______________________5411
       AVERAGE LATENCY (mSEC) ___________________5.54
       BUFFER ___________________________________256/1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST WIDE
       TPI (TRACKS PER INCH) ____________________3000
       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7
       MAX FULL SEEK (ms) (read/write)___________19.4/20.4
       MTBF (power-on hours) ____________________500,000
       POWER REQUIREMENTS: +12V START-UP (amps) _1.9
                           +12V TYPICAL (amps) __0.37
                           +5V START-UP (amps) __0.65
                           +5V TYPICAL (amps) ___0.45
                           TYPICAL (watts) ______7
                           MAXIMUM (watts) ______
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.00/25.4
                        Width  (inches/mm):     4.02/102.1
                        Depth  (inches/mm):     5.77/146.6
                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 9 spare sector
per cylinder and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product
offerings or specifications. (10/24/94)