
S T 1 1 4 4 A    SEAGATE
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders        | 1024|     |
Capacity form/unform   130/      MB        Heads            |   14|     |
Seek time   / track  19.0/ 8.0 ms          Sector/track     |   17|     |
Controller           IDE / AT              Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.500 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext
Recording method     RLL 2/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C        10 50    |    -40 60
Power: sleep              W     Humidity     %         8 80    |      5 90
       standby        8.0 W     Altitude    km    -0.305  3.048| -0.305  9.140
       idle               W     Shock        g         2       |     50
       seek               W     Rotation   RPM      3528
       read/write     9.0 W     Acoustic   dBA        40
       spin-up            W     ECC        Bit
                                MTBF         h     150000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,TUV,UL478,VDE        

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
SEAGATE  ST1057A/1102A/1144A/-32 PRODUCT MANUAL 36130-003, REV.C

  +------------------------------------------------------+
  |                          User            +-------1   |XX
 +++LED                      Configuration  10-------+   |XX
 | |                         Jumpers                     |XX
 +++                                                     |XX
  |                                                      |XX AT
  |                                                      |XX INTERFACE
  |                                                      |XX CONNECTOR
  |                                                      |XX
  |                                                      |XX
  |                                                      |XX
  |                                                      |XX
  |                                                      |  1
  |                                                      |xx
  |                                                      |XX Power
  |                                                      |XX
  +------------------------------------------------------+   1




**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST1057A/1102A/1144A/-32  PRODUCT MANUAL 36130-003, REV.C

 Jumper setting
 --------------

 x = Jumpers set from factory

 User Configuration Jumper block
 -------------------------------
   +---------------+
   | 9  7  5  3  1 |
   |10  8  6  4  2 |
   +---------------+
   1- 2  Life Test
   3- 4  Master
   5- 6  Slave Present
   7- 8  RESERVED
   9-10  Remote LED


 Life Test  at the User Configuration Jumper block
 -------------------------------------------------
 This is a test function used during the manufacturing process and is
 not intended for fiel use. When pins 1 and 2 at the User
 Configuration Jumper block are shorted, the drive will continuously
 seek between Track 0 and the maximum data cylinder, ignoring all
 control signals sent via the interface.


 Master/Slave at the User Configuration Jumper block
 ---------------------------------------------------
    +---------------------------+--------+--------+
    |                           | 3-4    |  5-6   |
    +---------------------------+--------+--------+
  x |Single drive only          |CLOSED  |  OPEN  |
    +---------------------------+--------+--------+
    |Master in two drive system |CLOSED  |  CLOSED|
    +---------------------------+--------+--------+
    |Slave in two drive system  |OPEN    |  OPEN  |
    +---------------------------+--------+--------+
 If the host system contains more than two drives, one drive will be
 configured as the Slave. If your system uses only one drive,
 configure it as a Master with No Slave Present.


 User Configuration Jumper block   Reserved
 ------------------------------------------
 7-8     Reserved


 Remote LED
 ----------
 When pins 9 and 10 at the User Configuration Jumper Block are
 shorted, the drive will indicate activity to the host via the /HOST
 SLV/ACT line (pin 39) on the AT interface. This line may be connected
 directly to a +5 VDC LED. The line is current limited to 30 mA
 nominal.


 DC Power and pin connector assignments
 --------------------------------------
      +------------+   pin 1    +12 VDC
      | 1  2  3  4 |   pin 2    +12 VDC Gnd
      +------------+   pin 3    + 5 VDC Gnd
                       pin 4    + 5 VDC



**********************************************************************
                      I   N   S   T   A   L   L
**********************************************************************
SEAGATE  ST1057A/1102A/1144A/-32  PRODUCT MANUAL 36130-003, REV.C

 Notes on installation
 =====================

 Drive mounting
 --------------

     horizontally             vertically
   +-----------------+   +--+             +--+ +------------------+
   |                 |   |  +-----+ +-----+  | |                  | x
   |                 |   |  |     | |     |  | x+----------------+x
 +-+-----------------+-+ |  |     | |     |  | ||x              x||
 +---------------------+ |  |     | |     |  | ||  x          x  ||
                         |  |     | |     |  | ||    x      x    ||
      x           x      |  |     | |     |  | ||      x  x      ||
 +------x------x-------+ |  +-----+ +-----+  | ||       xx       ||
 +-+------x--x-------+-+ +--+             +--+ ||     x    x     ||
   |       xx        |                         ||   x        x   ||
   |     x    x      |                         || x            x ||
   +---x--------x----+                         |x                x|
     x            x                           x++----------------++x
      UNACCEPTABLE!                                UNACCEPTABLE!
      Never install PC board on the Top!

 The drive may be mounted horizontally with the PC board down or on
 either side. Mounting vertically on either end is a prohibited orien-
 tation.
 The drive should not be tilted front or back, in any position, by
 more than 5*. For optimum performance, the drive should be formatted
 in the same position as it will be mounted in the host system.

 The mounting screws must not exceed inside the mounting feet more
 than 3.2 mm, measured from the outside surface of the foot.

 AT Interface
 ------------
 The ST1057A, ST1102A and ST1144A use the industry-standard IBM
 task-file interface. They support both 8-bit and 16-bit data
 transfer, and have no DMA capability. All data transfers are done via
 programmed I/O. For further information on Seagate's implementation
 of the AT interface, refer to the Seagate AT Interface manual,
 publication number 36111-XXX. Up to two drives can be connected on
 the same host bus.

 AT Interface Connector Requirements
 -----------------------------------
 The drive connector is a 40-conductor connector with 2-rows of 20
 male pins on 100 mil centers.
 The mating cable connector is a 40-conductor nonshielded connector
 with 2-rows of 20 female contacts on 100 mil centers.

 AT Interface Cable
 ------------------
 Maximum cable length: 18 inches (457 mm)

 Shipping zone
 -------------
 At power-down, the read/write heads automatically move to the ship-
 ping zone. The shipping zone is an area inboard from the maximum data
 cylinder.
 When power is applied, the heads will recalibrate to Track 0.

 Input Noise
 -----------
 Maximum permitted input noise ripple: 100 mV (peak-to-peak)
 Maximum permitted input noise: 20 MHz.

 Ripple measured at the host system power supply across an equivalent
 20  resistive load on the +12 V line and an equivalent 8  load on the
 +5 V line.

 Shock and vibrations
 --------------------
 It is recommended that any external shock mounts between the drive
 and the host frame be designed so that the composite system has a
 vertical resonant frequency of 25 Hz or less. A minimum clearence of
 0.050-inches should be allowed around the entire perimeter of the
 drive to allow for cooling airflow and motion during mechanical shock
 or vibration. All shock specifications assume that the drive is
 mounted in a approved orientation with the input levels at the drive
 mounting screws.

 Onboard Drive Diagnostics
 -------------------------
 At power-on the drive will execute a series of diagnostic tests.
 Failure are indicated by a series of LED (front panel) flashes.

 +-------------+-------------------------------------------------+
 |  Flashes    | Drive Error Condition                           |
 +-------------+-------------------------------------------------+
 |  Irregular  | 8051 Microprocessor Error                       |
 |  Pattern    |                                                 |
 +-------------+-------------------------------------------------+
 |   2         | 8051 Microprocessor ROM Checksum Test           |
 +-------------+-------------------------------------------------+
 |   3         | External RAM Error                              |
 +-------------+-------------------------------------------------+
 |   4         | AT Interface Chip Error                         |
 +-------------+-------------------------------------------------+
 |   5         | Buffer RAM Error                                |
 +-------------+-------------------------------------------------+

 FCC Verification
 ----------------
 Warning: The ST1144 Family drives are intended to be contained solely
 within a personal computer or similar enclosure and not attached to
 an external device. As such, they are considered to be subassemblies
 even when individually marketed to the customer.



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
SEAGATE  ST1057A/1102A/1144A/-32  PRODUCT MANUAL 36130-003, REV.C

 AT Interface Connecter Pin Assignments
 --------------------------------------

      pin     signal        I/O  | pin     signal        I/O
      ---------------------------+--------------------------
      01      /Host Reset    O   | 21      Reserved      O
      ---------------------------+--------------------------
      02      Ground             | 22      Ground
      ---------------------------+--------------------------
      03      Host Data  7   I/O | 23      /HIOW         O
      ---------------------------+--------------------------
      04      Host Data  8   I/O | 24      Ground
      ---------------------------+--------------------------
      05      Host Data  6   I/O | 25      /HIOR         O
      ---------------------------+--------------------------
      06      Host Data  9   I/O | 26      Ground
      ---------------------------+--------------------------
      07      Host Data  5   I/O | 27      Reserved
      ---------------------------+--------------------------
      08      Host Data 10   I/O | 28      Reserved
      ---------------------------+--------------------------
      09      Host Data  4   I/O | 29      Reserved
      ---------------------------+--------------------------
      10      Host Data 11   I/O | 30      Ground
      ---------------------------+--------------------------
      11      Host Data  3   I/O | 31      IRQ14         I
      ---------------------------+--------------------------
      12      Host Data 12   I/O | 32      Host IO16     I
      ---------------------------+--------------------------
      13      Host Data  2   I/O | 33      Host ADDR 1   O
      ---------------------------+--------------------------
      14      Host Data 13   I/O | 34      /PDIAG        Notes
      ---------------------------+--------------------------
      15      Host Data  1   I/O | 35      Host ADDR 0   O
      ---------------------------+--------------------------
      16      Host Data 14   I/O | 36      Host ADDR 2   O
      ---------------------------+--------------------------
      17      Host Data  0   I/O | 37      /Host CSO     O
      ---------------------------+--------------------------
      18      Host Data 15   I/O | 38      /Host CS1     O
      ---------------------------+--------------------------
      19      Ground             | 39      /DASP         Notes
      ---------------------------+--------------------------
      20      Key          No Pin| 40      Ground
      ---------------------------+--------------------------

 Notes:
       * /Indicates active low signal. Direction is with respect to
         the host
       * I indicates to the host, O indicates from the host
         Reserved pins/ground do not have direction
       * /PDIAG and /DASP are used for communication between
         Master and Slave drive

 AT Bus Signal Levels
 --------------------
 Signal driven by the drive must have the following output character-
 istics at the drive connector:
                                Logic Low:      0 to 0.4  VDC
                                Logic High:   2.5 to 5.25 VDC


 Signal received by the drive must have the following input character-
 istics, measured at the drive connector:
                                Logic Low:      0 to 0.8  VDC
                                Logic High:   2.0 to 5.25 VDC

 DC Power Specifications
 -----------------------
 Power may be applied or removed in any sequence without loss of data
 or damage to the drive, exceept during a write operation. Typical
 current and power specifications assume nominal voltages applied,
 25*C ambient temperature, sea-level and spindle rotating.

 Maximum current specifications assum 10*C ambient temperature, +5.25
 VDC and +12.6 VDC applied, sea-level and spindle rotating.
 Maximum seek currents are measured on repetitive 3-track buffered
 seeks with one-half spindle ratation between each seek.

 Voltage tolerance (incl. ripple):   5%


 At Interface Seek Time Definition
 ---------------------------------
 Seek time is a true statistical average (at least 5,000 measure-
 ments) of seek time, less overhead.
 Track-to-track seek time is the average of all possible single-
 track seeks in both directions.
 Average seek time is measured by executing seek in both directions
 between random sector addresses.
 Full-stroke seek time is one-half the time needed to seek from the
 first data block to the maximum data block and back to the first data
 block.
 Note: Host overhead varies between systems and cannot be specified.
       Controller overhead is typically less than 500  sec.

        ----------------------------------+--------+
        Track-to-Track         msec. typ. |   6    |
                               msec. max. |   8    |
                       Average msec. typ. |  19    |
                       Average msec. max. |  20    |
        Full-Stroke            msec. typ. |  38    |
                               msec. max. |  40    |
        Latency                msec. avg. |   8.50 |
        ----------------------------------+--------+


 UL/CSA Listing
 --------------
 These drives are listed in accordance with UL 478 and CSA C22.2
 (0-M1982), and meet all applicable sections if IEC 380 and VDE
 0806/08.81, as tested by TUV-Rheinland, North America.


 Reliability
 -----------
 MTBF:           150,000 POH (nominal power, sea level,
                            25*C ambient temperature)
 PM:             Not Required
 MTTR:           30 Minutes
 Service life:   5 Years



**********************************************************************
                      G   E   N   E   R   A   L
**********************************************************************
SEAGATE   SUPPORT SERVICES

 Seagate Technology
 ------------------
 Technical Support Services
 If you need assistance installing your drive, consult your dealer.
 Dealers are familiar with their unique system configurations and can
 help you with system conflicts and other technical issues. If you
 need additional assistance with your Seagate(r) drive or other
 Seagate products, use one of the Seagate technical support services
 listed below.

 SeaFONE at 1-800-SEAGATE (1-800-732-4283)
 Seagate's 800 number allows toll-free access to automated self-help
 services, providing answers to commonly asked questions,
 troubleshooting tips and specifications for disc drives and tape
 drives. This service is available 24 hours daily and requires a
 touch-tone phone. If you need to speak to a technical support
 engineer, dial this number and listen to the options for technical
 support. (International callers can also reach this automated
 self-help service by dialing 408-456-4496).


 Seagate Technology online services
 Using a modem, you can obtain troubleshooting tips, free utility
 programs, drive specifications and jumper settings for Seagate's
 entire product line. You can also download software for installing
 and analyzing your drive.

 SeaNET
 You can obtain technical information on Seagate drives, Seagate
 software and much more over the Internet from Seagate's World Wide
 Web home page (http://www.seagate.com) or Seagate's ftp server
 (ftp://ftp.seagate.com).

 You may also send E-mail with your questions to DiscSupport@
 Seagate.com or TapeSupport@Seagate.com.


 SeaBOARD
 SeaBOARD is a computer bulletin board system (BBS) that contains
 information about Seagate's disc and tape drive products and is
 available 24 hours daily. Set your communications software to eight
 data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers
 are listed in the following table.

 BBS Location           Modem number
 United States      Disc: 408-434-1080; Tape: 408-456-4415
 England            44-1628-478011
 France                         33 1-48 25 35 95
 Germany            49-89-140-9331
 Singapore          65-292-6973
 Thailand           662-531-8111
 Australia          61-2-9756-2359
 Taiwan             886-2-719-6075

 Seagate CompuServe forum
 Online technical support for Seagate products is available on
 CompuServe. To access our technical support forum, type go seagate.
 This forum provides information similar to that found on SeaBOARD.
 In addition, you can type questions or browse through previous
 questions and answers on the forum messages.

 Seagate Technology FAX services
 SeaFAX
 You can use a touch-tone telephone to access Seagate's automated FAX
 system to receive technical support information by return FAX. This
 service is available 24 hours daily.
 Location               Telephone number
 United States          1-800-SEAGATE or 408-456-4496
 England                44-1628-894084
 Australia              61-2-9756-5170

 Seagate technical support FAX
 You can FAX questions or comments to technical support specialists 24
 hours daily. Responses are sent during business hours.
 Location               FAX number
 United States          408-944-9120
 England                        44-1628-890660
 France                 33 1-46 04 42 50
 Germany                        49-89-1430-5100
 Australia              61-2-9725-4052
 Singapore              65-293-4722
 Hong Kong              852-2368 7173
 Taiwan                 886-2-715-2923
 Korea                          82-2-556-7294/4251


 Seagate technical support
 You can talk to a technical support specialist during business hours
 Monday through Friday for one-on-one technical help.  Before calling,
 note your system configuration and drive model number (STxxxx). There
 are several technical support phone numbers available for various
 Seagate products.

 Location          Telephone  number
 United States Please dial 1-800-SEAGATE for the specific product
               telephone number.
               (6:00 A.M. to 11:15 A.M., 12:30 P.M. to 5:00 P.M.,
               Pacific time, M-F)
 England       44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to
               5:00 P.M., M-F)
 France        33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Germany       Disc: 49-89-140-9332; (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 4:00 P.M., M-F)
               Tape: 49-89-140-9333
 Australia     61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M-F)
 Singapore     65-290-3998 (9:00 A.M. to 12:00 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Hong Kong     852-2368 9918
 Taiwan        886-2-514-2237
 Korea         82-2-556-8241


 SeaTDD 408-944-9121
 Using a telecommunications device for the deaf (TDD), you can send
 questions or comments 24 hours daily and exchange messages with a
 technical support specialist between 6:00 A.M. to 11:15 A.M. and
 12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday.


 Customer Service Centers
 Seagate direct OEM, Distribution, System Integrator and Retail
 customers should contact your Seagate Service Representative for
 warranty information.  Other customers contact your place of
 purchase.  Seagate offers comprehensive customer support for all
 Seagate drives.  Seagate customer service centers are the only
 facilities authorized to service Seagate drives. These services are
 available worldwide.

 Location                       Telephone number                FAX number
 United States          1-800-468-3472;                 405-949-6740
 Other Americas
 (Canada & Brazil)      405-949-6706;               405-949-6738
 Mexico                         525-546-6965;                   525-546-4888
 Europe, Middle
 East & Africa          31-2065-43300;              31-2065-34320
 Asia Pacific &
 Australia              65-485-3595;                    65-485-4980
 Japan                          81-3-5462-2904;                 81-3-3462-2979


 Seagate, Seagate Technology and the Seagate logo are registered
 trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD,
 SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or
 registered trademarks of Seagate Technology, Inc. or one of its
 subsidiaries. All other trademarks or registered trademarks are the
 property of their respective owners.


