Seagate Technical Support Disc Drive Specifications

DESK REFERENCE:

This file will be maintained starting April 1992.

11/02/95        Added WC configuration to Barracuda 4, ST15150WC
                Added ST31240A, ST31640A, ST51270A, ST9816A,
                ST32171N, ST32171W, ST34371N, ST34371W, ST18771N, 
                ST18771W, ST31051N, ST31051W, ST32151N, ST32151W,
                ST3630A, ST51080N. Corrected Term Power detail for 
                Barracuda 2LP Wide Differential models. Added Remote 
                LED polarity info on ST5660N.

10/12/95        Corrected Elite 9 differential models to show
                T-Res info.

10/05/95        Updated ST5540A and ST51080A to show
                abnormal shock spec and cache buffer size 
                (Medalist sl family drives formerly known as 
                Decathlon family.)  Added ST31270A and ST5851A.

 8/10/95        Corrected the Enable T-Res jumper on the ST31230W
                ST32430W.

 6/24/95        Added Cable Select info to ST9140AG and ST9190AG.
                Corrected J2 options jumpers on ST15230W. Added
                Micro House phones. Added new SCSI ID order for 
                ST3610N.

 5/14/95        Added Type A and B board configurations to 
                ST3780A and ST31220A.  Updated to include the
                PDIAG Slave jumper option.

 4/25/95        Fixed a spelling problem on Medalist family slave
                present jumpers.

 4/05/95        Cleaned up ST5660N term power description and
                corrected BPI value. Corrected ST3610N ID#
                order.

 2/01/95        Added shock specs to Hawk family drives

 1/27/95        Corrected default term power reference asterisk
                on 1" Barracuda Differential models

 1/24/95        Added ST5850A and ST9420AG. Corrected Term Power
                from SCSI bus setting on Hawk family drives. Fixed
                spelling error on Barracuda family wide models.  
                Corrected ST12450W J4 option block to show 8 pairs.

12/09/94        Updated Hawk and Barracuda families to show ASA level.

12/06/94        Updated ST3500N average sector per track value.

10/24/94        Updated ST31230W, ST32430W, ST31200W and ST410800N/W
                Added ST3620W.

10/20/94        Corrected ST15230N avg SPT.

10/10/94        Added Marathon name to ST9385AG, ST9550AG, ST9655AG

 8/31/94        Corrected ST5660A specs. Corrected ST15150N to
                not show removable terminators (uses TE jumper).

 8/26/94        Added ST31230N and ST32430N. Updated ST12400W and
                ST15150N.

 8/17/94        Added ST3240A, ST3295A and ST3660A. Updated missing
                info on ST9385A, ST9550A, ST9655A, ST3780A and ST31220A.

 8/09/94        Added Medalist, Decathlon and Marathon names to
                appropriate models.  Added ST31220A and ST3780A
                models.

 8/08/94        Corrected External Transfer Rate for ST410800W.
                Added Force 1024 Cyls jumper to ST5660A. Added
                External Transfer Rates to Hawk and Barracuda
                drives. Corrected SPT avg for Barracuda 4 drives.

 8/01/94        Updated wide Barracuda models to show J4
                jumper MAY have 7 pairs.

 5/31/94        Added Parity Enable to ST43401N.  Updated
                ST5660N specs and jumpers.

 5/10/94        Corrected ST740A width.  Corrected Barracuda
                Family Depth (mm).  Updated ST3390N average
                Sector per Track value.  Clarified ST3x91A
                Family jumper drawing.

 5/02/94        Corrected access times on ST3x91 family drives.

 4/28/94        Added ST9385AG, ST9150AG, ST9240AG, ST9300AG,
                ST9655AG, ST15230N, ST15230W

 4/14/94        Corrected Height measurement on several 9xxxA
                models.

 3/24/94        Corrected the ST410800N and W info.

 3/14/94        Corrected ST31200N family drives Parity Enable
                jumper reference (said Disable, sorry). Also
                clarified the same jumper on ST3610N family.

 2/27/94        Added ST3250A, ST3291A, ST3391A and ST3491A.
                Updated ST7050P. Pulled ST11201N and ST42101N
                which were never mfg'd.

 2/15/94        Corrected pwa reference on Terminator Power view
                for Hawk family drives.

 2/11/94        Corrected specs that said "straight arm" actuator
                to "rotary voice coil".

 1/17/94        Reordered the J2 numbering on the ST11200 family
                to match the Installation Guides.

12/17/93        Updated Baracuda differential models to show
                correct buffer size.

12/15/93        Added new products which where introduce at the
                Fall '93 Comdex. 34 new models (whew! <g>)

12/14/93        Minor change to Elite drive family concerning
                termination power options on Differential models.

11/09/93        Corrected ST7050P specs. Added mating cable connector
                info to ST31200N

11/08/93        Added Cable Select jumper info to ST3655A, ST3550A
                and ST3390A

11/04/93        Corrected number of cylinders on ST3655N to
                conform to mode select page 3 sector/track
                value.

10/12/93        Added jumper drawings to ST11950W and ST12550W.
                Removed T-res object from ST11900N and ST12400N
                jumper drawings since these models use a T-RES
                enable/disable jumper.
                Corrected avg sector per track on ST11900N.
                Added ST11900NC drawing to show new 80 pin I/O
                connector.
                Corrected ST11200N family access times to not include
                controller overhead.
                Added ST1950N and ST11830N (ST11200N family drives).

10/11/93        Changed model numbers:ST11951N ->ST11950W,
                ST12551N ->ST12550W (new SCSI-wide designations will
                use W instead of ..1N). Also fixed average sectors
                per track on Baracuda drives.
                Corrected Delayed Motor Start time on ST11200 family.

10/05/93        Updates specs on ST31200N. Added note to Baracuda models
                about differential termination.
09/15/93        Corrected avg sectors per track on ST3390N

09/12/93        Corrected T-res info on ST4182N

08/17/93        Update specs and jumper setting for ST9235N.

08/12/93        Removed ST11700N, ST11701N, ST11750N, ST11751N and
                replaced with updated versions ST11900N, ST11901N,
                ST11950N and ST11951N.

08/11/93        Removed ST9295N (never produced).

07/27/93        Corrected "default" terminator power designations on
                ST3283N, ST3390N and ST3550N.

06/22/93        Corrected ST9100AG power specs.
                Added ST3195A, ST9140AG, ST9190AG.

05/14/93        Added ST3390N.

05/13/93        Corrected ST1480N family t-res power from bus jumper.

05/12/93        Corrected ST9100AG total sectors and changed default
                translation geometry. Corrected ST3243A mtbf and power
                specs.
                Added ST9145AG, ST3123A, ST3145A, ST3290A, ST3390A,
                ST3655A.

03/10/93        Clarified front-to-back orientation of configuration
                jumper block on ST3600A.
                Corrected ST3243A board layout.
                Corrected ST41601N external transfer rate.

02/09/93        Corrected ST3600A Master with Slave Present jumper

02/02/93        Added reference to old/new style SCSI ID jumper
                block on ST3600, ST3610 and ST11200 families.
                Correct cylinder and head specs on ST43400 Elite 3
                family. Pulled drawing in ST43402 and ST11201 (should
                show 68-pin wide scsi connector).

01/29/93        Added new PWA layout for ST3600A Family

12/18/92        Added all the NEW drives announced at COMDEX '92.

12/08/92        Updated ST3283N to show notch in I/O connector
                plastic shroud. Corrected MTBF and power specs.
                Corrected ST1980N internal transfer rate.

12/07/92        Added shock spec to ST9144 family.
                Updated left side view for ST3600N family to show
                early PCB layout for SCSI ID header.

12/01/92        Corrected Motor Start and Start Delay designations
                on ST3600N family.  They were described in reverse.

11/12/92        Corrected external transfer rate on ST41601N

11/11/92        Clarified location of configuration jumpers on ST2106E.
                Noted perpendicular configuration header on ST412 members
                of the ST157 family.

10/22/92        Added ST3600 family drives (ST3500 A & N, ST3600 A & N)

10/12/92        Corrected order of jumper numbers on ST11200 family
                (incl ST1980N) J2 jumper block.  Descriptions were OK,
                number wasn't. Also corrected ST11200N family data
                buffer amount.

09/28/92        ST3283 power specs and max full seek updated. Added
                pin-28 SPSYNC- info to front view of ST3283A.

09/8/92         Corrected perspective on ST3283 family front view.

07/16/92        Added T-res information to ST-2125N and ST-2209N (old
                94221 family Wren 5)

07/13/92        Corrected description of Motor Start and Start Delay
                jumpers on ST11200 family
                Identified pin-1 of J5 on ST1480N family

06/11/92        Corrected 3-pin power assignments on ST3144 family.
                Added ST-9052A.

05/18/92        Added ST-42400N.
                Correct spindle speeds on ST11200 family.

04/17/92        ST325N SCSI drive added.

