Recording And Interface Technology; Physical Dimensions; Seek Time - Seagate ST9655 Series Product Manual

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1.5 Recording and interface technology

Specification
Interface
Recording method
Recording density (BPI)
Flux density (FCI)
Track density (TPI)
Spindle speed (RPM ± 0.5%)
Internal data transfer rate
(Mbits per sec max—ZBR)
I/O data transfer rate (Mbytes per sec max)
PIO Mode 3 with IORDY
Multiword DMA Mode 1
Interleave
Cache buffer (Kbytes)

1.6 Physical dimensions

Height (max) inches
(mm)
Width (max) inches
(mm)
Depth (max) inches*
(mm)
Weight (typical) ounces
(kg)
* Excludes I/O connector pins, which may extend up to 0.010 inches be-
yond the edge of the head/disc assembly.

1.7 Seek time

All seek times are measured using a 25 MHz 486 AT computer (or faster)
with a 8.3 MHz I/O bus. The measurements are taken with nominal power
at sea level and 25°C ambient temperature. The specifications in the
following table are defined as follows:
ST9655 Family Product Manual, Rev. A
ST9655AG ST9550AG ST9385AG
ATA ATA
RLL (1,7) RLL (1,7)
72,100 59,124
44,360 44,360
3,227 3,282
3,980 3,980
28.26 27.28
11.1 8.0
13.3 13.3
1:1 1:1
120 120
0.754
(19.15)
2.760
(70.10)
4.010
(101.85)
7.4
(0.21)
ATA
RLL (1,7)
59,124
44,360
3,282
3,980
27.28
8.0
13.3
1:1
120