Hitachi HUS157336EL3600 User Manual
Page 10
Drawing No. Sheet No. Revision 5
K6602906
10/46
2003/6/12
3
Description
3.1 Characteristics
Table 3.1 Characteristics
Item
Specifications
Ultrastar 15K73-73
Ultrastar 15K73-36
unit
Configuration Storage capacity
73.9
36.9
GB
(formatted) (see Note 1,2,13)
Bytes/sector (see Note 3)
512, 516, 520, 524, 528,1024
Bytes
Number of disks
5
3
Number of heads
10
5
Areal density
31.2
Gb/inch2
Recording method
MEEPRML
Performance Seek time
average
3.9 / 4.2
ms
read / write
full stroke
7.2 / 8
ms
(see Note 5)
1 track
0.4 / 0.5
ms
Average latency
1.99
ms
Rotational speed
15037
rpm
Data transfer rate (In drive)
684 – 960
Mb/s
Start time (see Note 5)
25
s
Data transfer
rate
(Controller)
Single-Ended Asynchronous
Fast-5
Fast-10
Ultra (Fast-20)
5.0 max.
10.0 max.
20.0 max.
40.0 max.
MB/s
(see Note 4)
LVD
Ultra2 (Fast-40)
Ultra160 (Fast-80)
Ultra320 (Fast-160)
80.0 Max.
160.0 max.
320.0 max.
Buffer size
8M
Bytes
Typ.
(Note5)
3sigma
Typ.
(Note 5)
3sigma
Power
12V Spin-up, peak
2.20
2.44
2.20
2.44
A
requirement
12V Seek, peak
2.64
2.85
2.45
2.65
A
12V Idle, ave.
0.75
0.81
0.57
0.62
A
5V R/W, peak
1.54
1.65
1.54
1.65
A
5V Read, ave.
1.45
1.56
1.45
1.56
A
5V Write, ave.
1.20
1.28
1.20
1.28
A
5V Idle, ave.
0.60
0.64
0.60
0.64
A
Physical
length x width x height
146.0x101.6x25.4
mm
dimensions
weight
0.69
0.67
kg
Power
dissipation
+12V Idle / +5V Idle, (Average)
12.0
9.8
W
Energy consumption rate (see Note 12)
0.162
0.266