Hard Drive: IBM: DHAA-2540 TRAVELSTAR 540MB 2.5"/SSL ATA2 FAST
D H A A - 2 5 4 0 T R A V E L S T A R IBM
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 2.5"/SUPERSLIMLINE Cylinders | 1047| |
Capacity form/unform 540/ MB Heads | 16| |
Seek time / track 14.0/ 4.0 ms Sector/track | 63| |
Controller IDE / ATA2 FAST/ENHA Precompensation
Cache/Buffer 32 KB WRITE CACHE Landing Zone
Data transfer rate 4.500 MB/S int Bytes/Sector 512
8.300 MB/S ext
Recording method RLL 1/7 operating | non-operating
-------------+--------------
Supply voltage 5 V Temperature *C 5 55 | -40 65
Power: sleep W Humidity % 8 90 | 5 95
standby W Altitude km -0.300 3.000| -0.300 12.000
idle 1.2 W Shock g 10 | 120
seek W Rotation RPM 3800
read/write W Acoustic dBA
spin-up W ECC Bit 128BIT REED SOLOMON,ON THE...
MTBF h 300000
Warranty Month
Lift/Lock/Park YES Certificates CSA,IEC950,TUV,UL1950
Layout
IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994
+--------------------------------------+
| |
| |
| |
+--------Interface-------------49------+
| 43**********************1 **47 Jumper
| 44*************x********* **48 |
+------------------------------50------+
+ +
Pin position 20 is left blank for secure connector insertion.
Pin position 47 through 50 are used for drive address setting.
Jumpers
IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994
Jumper Setting
==============
Drive Address Setting
---------------------
A jumper is available at the interface connector to determine the
drive address.
Using Cable Selection, the drive address depends on the condition of
pin 28 of the AT interface cable. In the case when pin 28 is ground
or low, the drive is a Master. If pin 28 is open or high level, the
drive is a Slave.
---49--47+
* * X | Master
* * X | (Default setting)
---50--48+
---49--47+
* * * | Slave
* * * |
---50--48+
---49--47+
* * * | Cable Selection
* xxx |
---50--48+
Install
IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994
Notes on Installation
=====================
Installation direction
----------------------
horizontally vertically
+-----------------+ +--+ +--+
| | | +-----+ +-----+ |
| | | | | | | |
+-+-----------------+-+ | | | | | |
+---------------------+ | | | | | |
| | | | | |
| | | | | |
+---------------------+ | +-----+ +-----+ |
+-+-----------------+-+ +--+ +--+
| |
| |
+-----------------+
The drive will operate in all axis (6 directions).
Mounting Orientation
--------------------
The drive operates in all axes (6 directions). The drive operates
within the specified error rates when tilted 5 degrees from these
positions.
Performance and error rate stay within specification limits even if
the drive is operated in other orientations from which it was
formatted. Thus a drive formatted in the horizontal orientation
operates in the vertical position without any degradation, and vice
versa.
The recommended mounting screw torque is 3 0.5 [Kgf.cm]. The
recommended mounting screw depth is 3.5 0.5 [mm] for bottom and 5.0
0.5 [mm] for horizontal mounting.
The system is responsible for mounting the drive securely enough to
prevent excessive motion or vibration of the drive at seek operation
or spindle rotation, using appropriate screws or equivalent mounting
hardware.
The vibration test and the shock test ar eto be conducted with the
drive mounted to the table using four bottom screws.
Landing Zone and Lock
---------------------
A landing zone on the disk, not on the data area of the disk, is
provided to protect the disk data during shipping, movement, or
storage. Upon power down, a head locking mechanism will secure the
heads in this zone.
Cabling
-------
The maximum cable length from the host system to the drive plus
circuit pattern length in the host system shall not exceed 18 inches.
Interface Connector
-------------------
The AT signal connector is designed to mate with Dupont part number
69764-044 or equivalent. Size and locations of the mounting hols
comply with MCC.
5V Power (Pins 41/42 of the Interface Connector) ------------------------------------------------ There are two input pins for +5V power supply, +5V LOGIC, pin 41 and +5V MOTOR, pin 42. +5V LOGIC is connected to the internal logic circuits and +5V MOTOR is connected to the spindle motor and motor driver.
It is possible to turn on and off +5V LOGIC by an external switch circuit to reduce power consumption to the least possible. In this mode, a voltage drop out due to the motor spin up current can be reduced by connecting +5V MOTOR line into the system power source directly.
If the above power management is used, all signal lines that will be
electrically active in the host system while the drive is
disconnected from power line shall be isolated by Three-State line
drivers. Internal leakage through ESD protection circuit may pull
down LPUL (least Positive Up Level) of logic signal below the spec.
Use both lines in parallel, for regular drive applications.
Features
IBM DHAA-2XXX OEM FUNCTIONAL SPECIFICATIONS S66G-8101-00 1994
Product Outline
---------------
- No-ID physical format
- ATA-2 interface
- CHS and LBA mode
- Enhanced ECC implementation 128 Bit Reed Solomon Code operating 10-bit symbol Multi burst On-the-Fly correction (up to 4 symbols in one sector)
- Automatic retry on errors
- Self Diagnostics during Power On
- Power saving modes
- MR Head technology
- MCC standardized mounting holes and interface connector
- Closed Loop actuator servo
- Dedicated head landing zone
- Automatic actuator lock
- No preventive maintenance
Error Recovery
--------------
Errors occuring with the drive are handled by the error recovery
procedure.
Errors that are uncorrectable after of the error recovery procedures
are repported to the host system as non-recoverable errors.
Warranty
--------
The warranty will be covered by contracts.
Identification Labels
---------------------
The following labels are affixed to every drive.
1. A label placed on the top of the HDA contains the statement "Made
by IBM" or equivalent, Part number, and MLC number.
2. A bar code label placed on the disk drive is based on user
request. The location is to be designated in the drawing.
3. Labels containing the vendor's name, disk drive model number,
serial number, place of manufacture and UL/CSA certificates.
Except for the bar code, the labels may be integrated.
Interface Logic Signal Levels
-----------------------------
The interface logic signal have the following electrical
specifications:
Inputs: Input High Voltage 2.0 V min./ Vcc+0.7 V max
Input Low Voltage -0.5 V min./ 0.8 V max.
Outputs: Output High Voltage 2.4 V min.
Output Low Voltage 0.5 V max.
Current: Driver Sink Current 24 mA min.
Driver Source Current -400 uA min.
Data Buffer Test
----------------
The data buffers, a read buffer and a write buffer used as temporally
data storages for read/write data transfers, are tested at a power-
on-reset and when a drive self-test is requested by the host. The
tests consist of write/read hex '00'and hex 'FF'pattern for all bit
position of the buffers.
Error Recovery
--------------
Errors occuring with the drive handled by the error recovery
procedure.
Errors that are uncorrectable after application of the error recovery
procedures are reported to the host system as non-recoverable errors.
Sound Power Levels
------------------
The upper limit criteria of the A-weighted sound power levels are
given in bels relative to one pico watt and are shown in the
following table.
Mode | A-weighted Sound Power Level [Bel] -----------+-------------------------------------- Idle | 4.5 -----------+-------------------------------------- Operating | 4.8
Background power levels of the acoustic test chamber for each octave
band are to be recorded.
Sound power levels are measured with the drive supported by spacers
so that the lower surface of the drive is located 25 3mm height
from the chamber floor. No sound absorbing material shall be used.
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