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



ST-4767ES Wren Runner 2 FH ESDI

          ÚData Cable                ÚController Cable     /Ä5ÄGÄGÄ12\
         ÍÍÍÍÍÍÍÍ ÍÍÍ           J11 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    ͳ 0 0 0 0 ÆÍÍ
                o o o o o o o   o o   1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o oÀÄÄÄJ1ÄÄÄÄÙ
            J9  o o o o o o o   ÄÂÄ   ÀTerminatorÄÙ o o o o
                1 2 3 4 5 6 7    À´Synchronous      1 2 4 W
  Motor Start ÄÄÙ ³ ³ ³ ³ ³ ³     ³Spindles         ÄÄÂÄÄ ³    J8
option enable     ³ ³ ³ ³ ³ ³                         ³   À Write Protect
                  ³ ³ ³ ³ ³ À Synchronized Spindle    ÀÄÄÄÄ Drive Selects
Factory use only ÄÙ ³ ³ ³ ³   Terminator (connected on       Binary Coded
                    ³ ³ ³ ³   last drive in daisy chain)
         Sectors    ³ ³ ³ ÀÄ Factory use only
         ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ
       Special      0 0 0
            60      0 0 1 = 644,659,200
            61      0 1 0 = 655,403,520
            62      0 1 1 = 666,147,840
            63      1 0 0 = 676,892,160
            33      1 0 1
      Reserved      1 1 0    0=open; 1=closed
      Add Mark      1 1 1


                             ST-4767E

       UNFORMATTED CAPACITY (MB) ________________788
       FORMATTED CAPACITY (63 SECTORS) (MB) _____676 **
       ACTUATOR TYPE ____________________________VOICE COIL
       TRACKS ___________________________________20,985
       CYLINDERS ________________________________1399
       HEADS ____________________________________15
       DISCS ____________________________________8
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL (1,7)
       TRANSFER RATE (mbytes/sec) _______________3
       INTERNAL TRANSFER RATE (mbits/sec) _______24
       SPINDLE SPEED (RPM) ______________________4,800
       AVERAGE LATENCY (mSEC) ___________________6.25
       INTERFACE ________________________________ESDI
       TPI (TRACKS PER INCH) ____________________1,600
       BPI (BITS PER INCH) ______________________32,049
       AVERAGE ACCESS (ms) ______________________11.9
       SINGLE TRACK SEEK (ms) ___________________2.5
       MAX FULL SEEK (ms) _______________________25
       MTBF (power-on hours) ____________________150,000
       POWER REQUIREMENTS: +12V START-UP (amps) _4.5
                           +12V TYPICAL (amps) __2.0
                           +5V START-UP (amps) __1.2
                           +5V TYPICAL (amps) ___0.8
                           TYPICAL (watts) ______27
                           MAXIMUM (watts) ______
       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 ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track
   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

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

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/esdi/st4767e.txt.