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                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1991



ST-325N SCSI Interface

    ³J2 10-pin version (located
    ³    on SIDE, near rear)
    ΐΔΔΔΔΔΒΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔΔ
          ³
                    1
(front) ψ  ψ  ψ  ψ  ί  (back)
        ψ  ψ  ψ  ψ  ψ                                            4-pin DC
 ΝΝΝΝΝΟΝΡΝΝΡΝΝΡΝΝΡΝΝΡΝΝΝΝΝΝΝ               SCSI  Interface       Power
        1  2  4  ³  P                      connector            ΪΔ1Δ2Δ3Δ4ΔΏ
        ΐΔΔΕΔΔΩ  ³  ³               ΥΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΝΈ ³ 0 0 0 0 ³
           ³     ³  ³               ³::::::::::::::::::::::::1³ \12ΔGΔGΔ5Δ/
           ³     ³  ³         ΝΝΝΝΝΝΟΝΝΝΝΝΝPΝWΝAΝΝΝΝΝΝΝΝΝΝΝΝΝΝΟΝΝΝΝΝΝΝΝΝΝΝΝΝ
           ³     ³  ³                 ΪΔΔΔΔΔΔ1 ΪΔΔΔΔΔΔ1 ΪΔΔΔΔΔΔ1
           ³     ³  ³                 ΐΔΔΔΔΔΔΩ ΐΔΔΔΔΔΔΩ ΐΔΔΔΔΔΔΩ
           ³     ³  ³                  Termination Resistors
           ³     ³  ³
           ³     ³  ΐΔ Parity Check Enable
           ³     ΐΔΔΔΔ Reserved
           ΐΔΔΔΔΔΔΔΔΔΔ Drive ID's, ID 0 (none) for single drive system



                        ST - 325N

       UNFORMATTED CAPACITY (MB) ________________25
       FORMATTED CAPACITY (32 SECTORS) (MB) _____21.4
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________1,308
       CYLINDERS ________________________________654
       HEADS ____________________________________2
       DISCS ____________________________________1
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL 2,7
       INTERNAL TRANSFER RATE (mbits/sec) _______9.2
       SPINDLE SPEED (RPM) ______________________3,600
       AVERAGE LATENCY (mSEC) ___________________8.33
       BUFFER ___________________________________2K or 8K
       INTERFACE ________________________________SCSI
       BYTES PER TRACK __________________________16,384
       SECTORS PER DRIVE ________________________41,856
       TPI (TRACKS PER INCH) ____________________1,015
       BPI (BITS PER INCH) ______________________22,762
       AVERAGE ACCESS (ms) ______________________28
       SINGLE TRACK SEEK (ms) ___________________7
       MTBF (power-on hours) ____________________50,000
       POWER REQUIREMENTS: +12V START-UP (amps) _1.2
                           +5V TYPICAL (amps) ___0.26
       POWER MANAGEMENT (Watts):
                           ACTIVE _______________7.0
                           IDLE _________________2.4
                           STANDBY ______________1.4
                           SLEEP ________________
       BUFFERED STEP PULSE RATE (micro sec) _____
       WRITE PRECOMP (cyl) ______________________N/A
       REDUCED WRITE CURRENT (cyl) ______________N/A
       LANDING ZONE (cyl)________________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0


Seagate reserves the right to change, without notice, product 
offerings or specifications. (5/6/91)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/scsi/st325n.txt.