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