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SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
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? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
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(C)opyright 1991
ST-419 ST412 MFM
OPTION SHUNT BLOCK
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1 ? R ? 16
2 ? NC ? 15
3 ? NC ? 14
4 ? NC ? 13
5 ? DS4 ? 12
6 ? DS3 ? 11
7 ? DS2 ? 10
8 ? DS1 ? 9
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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)