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ST1239A.TXT
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1990-07-24
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61 lines
SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771 [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright 1990
Swift AT (IDE) ST-1239A (94354-239)
┌───\
│ O │ 5
│ O │ G ┌─┐ Some have
│ O │ G AT (IDE) Cable │ ├─ these pins
│ O │ 12 1┌........................┐ o o o o o(o o)
└───/ ........................ o o o o o(o o)
═══════════════════════════════════════════════════════
1 2 3 4 5 6 7
ON OFF │ │ │ │ │ └┬┘
1 Slave Master ──┘ │ │ │ │ │
2 5 Heads 7/9 Heads ────┘ │ │ │ │
3 Slave installed Slave not inst. ──────┘ │ │ │
4 7 byte ECC 4 byte ECC ────────┘ │ │
5 Factory test Normal Oper. ──────────┘ │
6/7 Some PWA's have these pins, factory use ───────┘
ST-1239A
94354-230 Swift
UNFORMATTED CAPACITY (MB) ________________239
FORMATTED CAPACITY (36 SECTORS) (MB) _____211
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________11,448
CYLINDERS ________________________________1,272
HEADS ____________________________________9
DISCS ____________________________________5
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbytes/sec) _______________1.25
INTERFACE ________________________________AT BUS
TPI (TRACKS PER INCH) ____________________1,543
BPI (BITS PER INCH) ______________________28,103
AVERAGE ACCESS (ms) ______________________15
SINGLE TRACK SEEK (ms) ___________________4
MTBF (power-on hours) ____________________70,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.5
+12V TYPICAL (amps) __0.7
+5V START-UP (amps) __0.75
+5V TYPICAL (amps) ___0.4
TYPICAL (watts) ______11
MAXIMUM (watts) ______33.75
BUFFERED STEP PULSE RATE (micro sec) _____6-200
WRITE PRECOMP (cyl) ______________________N/A (1273)
REDUCED WRITE CURRENT (cyl) ______________N/A (1273)
IBM AT DRIVE TYPE ________________________? *
* MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE
PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
Already low-level formatted at the factory.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)