Datasheet

Hitachi Global Storage Technologies
Page 2 version 1.0
Connectors
Pin A
Pin 1
AT I/F
Connector
Jumper
Block
Power
Connector
The DC power connector is design-
ed to mate with AMP p/n 1-80424-0
using AMP strip pins (p/n 350078-4),
loose piece pins (p/n 61173-4), or
their equivalents.
Note: The AT signal connector is a 40-pin
connector.
Cabling
The length of the cable from the host
system to the drive must not exceed
18 inches.
For systems operating with Ultra
DMA mode 3, 4, or 5, the
80-conductor ATA cable assembly
must be used.
Jumper block
Jumper pin letter designations
I
A
G
EC
HFDB
A jumper attaches two pins together
to configure the drive for the proper
mode of operation.
Jumper settings
16 head logical architecture
Master active*
A-B and G-H
Slave active A-B and C-D
Cable Select A-B and E-F
Master/Slave present E-F and G-H
Reserved I
15 head logical architecture
Master active
A-C and G-H
Slave active A-C
Cable select A-C and E-F
Master/Slave present A-C, E-F & G-H
Reserved I
All other jumper settings are re-
served. Do not make other settings!
*Shipping default
DC power requirements
Damage to the drive electronics may
result if the power supply cable is
connected or disconnected while the
power is on. There is no special
power on/off sequencing required.
The following voltage specification is
applied at the power connector of
the drive.
Input
voltage
(Volts)
During run and
spin up
(Volts)
Absolute
max spike
voltage
+5 5 ± 5%
7
1
+12 12 +10% –8%
15
1
1
Power supply voltage spikes in excess
of the maximum values specified in the
table may damage the drive electronics
.
Power supply current
mA RMS
+5 V +12V
Total
Watts
250 GB model
Idle avg 280 470 7.0
Idle ripple – peak
to peak
230 330
–
Seek peak
590 1950
–
Seek avg
1
330 690 10.0
Start up-max
870 1840
–
RND R/W peak
790 1800
–
RND R/W avg
2
490 660 10.3
Standby avg 140 20 0.9
Sleep avg 100 20 0.7
120 GB and 160 GB model
Idle avg 280 375 5.9
Idle ripple – p to p
230 250
–
Seek peak
590 1790
–
Seek avg
1
330 610 6.7
Start up-max
740 1800
–
RND R/W peak 1252 1600
RND R/W avg
2
430 590 10.1
Standby avg 140 20 0.9
Sleep avg 100 20 0.7
40 GB and 80 GB model
Idle avg 280 300 5.0
Idle ripple – p to p
230 220
–
Seek peak
600 1550
–
Seek avg
1
330 520 7.9
Start up-max
870 1700
–
RND R/W peak
1252 1720
–
RND R/W avg
2
430 590 8.3
Standby avg 140 20 0.9
Sleep avg 100 20 0.7
1
Random seeks at 40% duty cycle
2
Seek duty = 30%, W/R duty = 45%,
Idle Duty = 25%
Power supply generated ripple
Output
(V)
Maximum
(mV p-p)
Freq. range
(MHz)
+5 100 0–10
[phone]
Hot Plug/Unplug support
Hot plugging/unplugging is not
allowed. Damage to the drive
electronics may result if the power
supply cable is connected or discon-
nected while power is being applied
to the drive.
Data organization (logical)
Number of heads 16
Sectors/track 63
Number of cylinders 16,383
Capacity
(GB)
Total logical data
bytes
40 41,174,178,880
80
82,348,277,760
120
123,522,416,640
160
164,696,555,520
250
250,059,350,016
Electromagnetic compatibility
When installed in a suitable enclos-
ure and exercised with a random
accessing routine at the maximum
data rate the hard disk drive meets
the following worldwide EMC
requirements listed below:
• United States Federal
Communications Commission
(FCC) Rules and Regulations
(Class B), Part 15.
• European Economic Community
(EEC) directive number 76/889
related to the control of radio
frequency interference and the
Verband Deutscher
Elektrotechniker (VDE)
requirements of Germany (GOP).