SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771  [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright  1990                              

ST-419

                       OPTION SHUNT BLOCK
                            ÚÄÄ\ÄÄÄ/ÄÄ¿
                          1 ³   R     ³ 16
                          2 ³   NC    ³ 15
                          3 ³   NC    ³ 14
                          4 ³   NC    ³ 13
                          5 ³   DS4   ³ 12
                          6 ³   DS3   ³ 11
                          7 ³   DS2   ³ 10
                          8 ³   DS1   ³ 9
                            ÀÄÄÄÄÄÄÄÄÄÙ

                     DS1,DS2,DS3,DS4=DRIVE SELECTED
                         R=RADIAL OPERATION

                              ST - 419

       UNFORMATTED CAPACITY (MB) ________________19.14
       FORMATTED CAPACITY (32 SECTORS) (MB) _____15.0
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________612
       CYLINDERS ________________________________306
       HEADS ____________________________________6
       DISCS ____________________________________3
       MEDIA TYPE _______________________________OXIDE
       RECORDING METHOD _________________________MFM
       TRANSFER RATE (mbits/sec) ________________5.0
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________345
       BPI (BITS PER INCH) ______________________9,074
       AVERAGE ACCESS (ms) ______________________85
       SINGLE TRACK SEEK (ms) ___________________< 16.67
       MTBF (power-on hours) ____________________11,000
       POWER REQUIREMENTS: +12V START-UP (amps) _3.5
                           +12V TYPICAL (amps) __1.6
                           +5V TYPICAL (amps) ___1.1
                           TYPICAL (watts) ______24.7
                           MAXIMUM (watts) ______50
       BUFFERED STEP PULSE RATE (micro sec) _____5-500
       WRITE PRECOMP (cyl) ______________________128
       REDUCED WRITE CURRENT (cyl) ______________N/A (307)
       LANDING ZONE (cyl)________________________319
       IBM AT DRIVE TYPE ________________________N/A

Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)