
S T 3 3 8 5 A    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders        |  767|     |
Capacity form/unform   340/      MB        Heads           5|   14|     |
Seek time   / track  12.0/ 4.0 ms          Sector/track     |   62|     |
Controller           IDE / AT              Precompensation
Cache/Buffer           256 KB              Landing Zone
Data transfer rate    4.000 MB/S int       Bytes/Sector      512
                      6.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 70
Power: sleep              W     Humidity     %                 |
       standby        1.0 W     Altitude    km                 |
       idle           3.0 W     Shock        g                 |
       seek           5.0 W     Rotation   RPM      4500
       read/write     5.8 W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     250000
                                Warranty Month
Lift/Lock/Park     YES          Certificates                                  

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
SEAGATE  ST3385A  PRODUCT DESCRIPTION

    +-------------------------------------------------------++-1
    |                                                       || |J5
    |                                                       |+-+
    |                                                       |xx
    |                                                       |XX J7
    |                                                       |
    |                                                       |XX
    |                                            I/O        |XX
    |                                            Connector  |XX J1
    |                                                       |XX
    |                                                       |XX
    +---+                                                   |XX
  J8 +-+|                                                   |XX
     | ||                                                   |XX1
     1-+|                                                   |
    +---+                                          +--+     |XX Power
    |                                              |++|     |XX J3
    +----------------------------------------------++++-----+
                                                    J6



**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST3385A  PRODUCT DESCRIPTION

 Jumper setting
 --------------
 x = Jumpers are set by factory


 J5  Master/slave and slave present jumper block
 -----------------------------------------------
     --+----+-- PCB
      3|o  x|1
      4|o  o|2
       +----+

      1- 2  OPEN   One drive only
 x    3- 4  OPEN

      1- 2  CLOSE  Drive is slave
      3- 4  OPEN

      1- 2  OPEN   Drive is master with slave present
      3- 4  CLOSE

 If only one drive is installed, do not install any jumper on the
 master/slave present jumper block.

 If there are two drives installed on the bus, one must be configured
 as a master and the other as a slave. No more than two drives can be
 connected on the AT bus.

 To configure the drive as a master with slave present, install a
 jumper on pins 3 and 4 only of the master/slave and slave present
 jumper block.

 To configure the drive as a slave, install a jumper on pins 1 and 2
 only of the master/slave and slave present jumper block.


 J6  Factory test
 ----------------
 The pins on this jumper block are used for testing during the manu-
 facturing process; they are not for field use.


 J7  Mini power connector
 ------------------------
   --+---------+-- PCB
     | o  o  o |
     +---------+
       |  |  |
       |  |  +----  + 5 VDC
       |  +-------  +12 VDC
       +----------  Ground


 J8  Options jumper block
 ------------------------
     13 11  9  7  5  3  1
     +-------------------+
     |o  o  o  o  o     x|
     |o  o  o  o  o  o  o|
     +-------------------+
     12 11 10  8  6  4  2

  pin- 3   Removed for key
  pin- 8   Spindle clock I/O pin 28
  pin- 9   Clock ground
  pin-10   External spindle clock sync.
  pin-13   Remote LED -
  pin-14   Remote LED +

  Note: All other pins are reserved. Do not use them.


 J8   Remote LED connection
 --------------------------
 If you want to add a remote LED, attach a two-pin, 0.1-inch connector
 to pins 13 and 14 of the options jumper block.


 J8  Spindle synchronization
 ---------------------------
 Enable pin-28 (SPSYNC-) on the AT Bus Interface connector by install-
 ing a jumper on pins 8 and 10 of the options jumper block.

 Connect a twisted pair to pins 9 and 10 of the options jumper block
 to transmit and receive SPSYNC-.


 J3   DC Power and pin connector assignments
 -------------------------------------------
    --+------------+-- PCB    pin 1    +12 VDC
      | 1  2  3  4 |          pin 2    +12 Volts Return
      +------------+          pin 3    + 5 Volts Return
                              pin 4    + 5 VDC


