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ST-4085 (94155-86) Wren 2 ST412 MFM
Drive Sel +-------------+
o o o o o | Term 1|
o o o o o | 14 pin dip | +---------+
+-------------+ | O O O O | Power
1 2 3 4 Radial \---------/
Command +---------------+1 12 G G 5
------------------------------+------------- -+-----------------
Data +--------------+1 +---------------+
-----------+------------ -+-------------------------------------
+--------------+
ST-4085
94155-85 WREN 2 FH
UNFORMATTED CAPACITY (MB) ________________85
FORMATTED CAPACITY (17 SECTORS) (MB) _____71
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________8,192
CYLINDERS ________________________________1,024
HEADS ____________________________________8
DISCS ____________________________________5
MEDIA TYPE _______________________________OXIDE
RECORDING METHOD _________________________MFM
TRANSFER RATE (mbits/sec) ________________5.0
SPINDLE SPEED (RPM) ______________________3,600
INTERFACE ________________________________ST412
TPI (TRACKS PER INCH) ____________________980
BPI (BITS PER INCH) ______________________9,400
AVERAGE ACCESS (ms) ______________________28
SINGLE TRACK SEEK (ms) ___________________5
MTBF (power-on hours) ____________________40,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __2.0
+5V START-UP (amps) __1.3
+5V TYPICAL (amps) ___0.75
TYPICAL (watts) ______28
MAXIMUM (watts) ______61
BUFFERED STEP PULSE RATE (micro sec) _____8-200
WRITE PRECOMP (cyl) ______________________N/A (or 128 for
the "85P" version)
REDUCED WRITE CURRENT (cyl) ______________N/A (1024)
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________45, *
* 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.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90) |