 Fujitsu offers a new
2.5-inch disk drive series with storage capacity of 544
to 1088 MB in a 12.5 millimetre high, low profile unit.
This has been achieved by adopting the the industry's
most advanced technologies that made an areal density of
870 Mbits per square inch possible namely
Magneto-Resistive (MR) heads , PR4ML read channel
technology and advanced galss media. The M271X series
features intelligent power management, which requires
only 1.09 watts for reading and writing, 0.79 watts for
idle mode, 0.39 watts for standby mode and a meagre 0.24
watts for sleep mode. The unit only draws 0.7 amps while
spinning up.
High performance offers internal data transfer rates
of 6.77MB/second and an interface tranfer rate of up to
16.77MB/second.
Reliability is ensured with the use of SMART
(Self-monitoring Analysis and Reporting Technology) which
gives warning of impending drive problems well in advance
while the operating shock rating of 100G makes it most
suitable for the portable computing environment.
Features
 High storage capacity
featuring MR heads
12.5mm low profile
Exceptional 100G operating
shock rating
SMART (Self-monitoring
Analysis and Reporting Technology)
Outstanding low power
consumption
Part Numbers and Options
| Model |
Capacity |
Part
Number |
Interface |
Mounting
Screws |
| M2712T |
544.05MB |
- |
ATA-2 |
6-32 UNC (TAU),
M3 (TAM) |
| M2713T |
816.08MB |
- |
ATA-2 |
6-32 UNC (TAU),
M3 (TAM) |
| M2714T |
1088.11MB |
- |
ATA-2 |
6-32 UNC (TAU),
M3 (TAM) |
Functional Specifications
| Model |
M2712T |
M2713T |
M2714T |
| Storage Capacity |
formatted |
544.05MB |
816.08MB |
1088.11MB |
| Disks |
1 |
2 |
2 |
| Heads |
read/write |
2 |
3 |
4 |
| Formatted
Track capacity |
46,080
to 92,160 bytes |
| Bytes per
sector |
512 |
| Cylinders |
3,916 |
| Sectors/Track |
132
to 204 |
| Seek Time |
track to
track |
3
milliseconds (Typical) |
| average |
12
milliseconds (Typical) |
| maximum |
24
milliseconds (Typical) |
| Average
latency time |
8.26
milliseconds |
| Rotational
speed |
3,634
rpm |
| Recording
density |
133,000
bpi |
| Track
density |
6,606
tpi |
| Data
transfer rate |
to/from
media |
3.42
to 6.77MB/second |
| PIO mode 4 |
16.77
MB/s |
| DMA mode 2 |
16.77
MB/s |
| Recording
code |
PR4ML |
| Interface |
ATA-2 |
| Head
positioning method |
ROTARY
VCM (Embedded Servo) |
| Start time |
5
sec typical |
| Stop time |
5
sec typical |
| Buffer
size |
128
KB |
Physical Specifications
| Power
Requirements |
voltage |
5VDC
± 5% |
| ripple |
100mV
P-P |
| spin up |
0.7A |
| read/write |
1.9W |
| idle (ready) |
0.79W |
| standby |
0.39W |
| sleep |
0.24W |
| Dimensions |
height |
12.5mm |
| width |
70mm |
| depth |
100mm |
| Weight |
140
grammes |
| Ambient
temperature |
operating |
5°C
to 55°C |
| not
operating |
-40°C
to 65°C |
| gradient |
20°C/Hour |
| Relative
humidity |
operating |
8%
to 90% RH (non condensing) |
| not
operating |
5%
to 95% RH (non condensing) |
| max. wet
bulb |
29°C |
| Vibration |
operating |
1.0G
(5 to 500 Hz) |
| not
operating |
5.0G
(5 to 500 Hz) |
| Shock |
operating |
100G
(2ms) |
| not
operating |
500G
(2ms) |
| Altitude |
operating |
-300
to 3,000m |
| not
operating |
-300
to 12,000m |
| Acoustic
noise |
30
dBA typical at 1m (Idle) |
Reliability Specifications
| Mean Time Between
Failures (MTBF) |
more than
300,000 power on hours |
| Mean Time To Repair
(MTTR) |
less than 30
minutes |
| Component Life |
5 years or
20,000 power on hours |
| Recoverable errors |
- |
| Unrecoverable errors |
1 per 10^13
bits read |
| Seek errors |
1 per 10^6
seeks |
| Start/stop cycles |
50,000 cycles |
|
