 Fujitsu
offers new high capacity ATA-2 interface disk drives for
entry level and midrange desktop systems. The new M161X
disk drives are low profile, one inch high, 3.5 inch
disks. They are available in two storage capacities 545MB
and 1091MB. Nearly 400Mbits per square inch of high areal
density allows these capacities to be stored on just one
and two platters respectively. Both drives are
manufactured to Fujitsu's highest reliability standards.
Features
Drive :
 Low profile
High storage capacity
Fast positioning time (11ms
average)
4,500 RPM
300,000 hour MTBF
Constant Density Recording
Embedded servo
Read Ahead / Write Cache
ECC Read-Solomon on the fly 11
bytes
Power Save Mode
ATA features :
ATA-2 command set
64KB multi-segmented buffer
High speed data transfer, up
to 16.7MB/second
IBM task file emulation
Automatic retry and branch for
defect management
Two drives can be
daisy-chained on a single interface cable.
Part Numbers and Options
| Model |
Capacity |
Part
Number |
Mounting
Screws |
| M1612T |
545.68MB |
CA01340-B321 |
6-32 UNC (TAU),
M3 (TAM) |
| M1614T |
1,091.37MB |
CA01340-B341 |
6-32 UNC (TAU),
M3 (TAM) |
Functional Specifications
| Model |
M1612T |
M1614T |
| Form
Factor |
3.5-inch
× 1-inch high |
| Interface
|
ATA-2
|
| Formatted
Capacity |
545.68MB |
1,091.37MB |
| Storage
Capacity/Track |
43,520
to 78,336 bytes |
| Number of
Disks |
1 |
2 |
| Number of
Heads |
2 |
4 |
| Number of
Cylinders |
4,133
|
| Sectors
Per Track |
85
to 153 |
| Recording
Density |
90,000
bpi |
| Track
Density |
4,394
tpi |
| Recording
Code |
8/9
PRML |
| Command
Specification |
ATA-2
|
| Data
Transfer Rate |
to/from
media |
4.37
to 7.89 MB/s |
| PIO mode 4 |
16.7MB/s
max. (PIO Mode 4) |
| DMA mode 2 |
16.7MB/s
max. (DMA Mode 2 ) |
| Spindle
Rotational Speed |
4,500
RPM ± 0.5% |
| Average
Latency |
6.67
milliseconds |
| Seek Time |
track to
track |
3.0
milliseconds |
| average |
12.0
milliseconds |
| full stroke |
23.0
milliseconds |
| Input
Voltage : |
+12V
± 5%, +5V ± 5% 100mV P-P |
| Power
Consumption |
4.6
W typical. |
| Dimensions
(without bezel) |
width |
101.6mm
|
| height |
25.4mm |
| depth |
146.0mm |
| Data
Buffer |
64
KB FIFO ring buffer. |
| Logical
Data Block Length |
512
bytes |
| Weight
|
0.6
kg |
| Mean Time
Between Failures (MTBF) |
300,000
power-on hours |
| Motor
Start Time |
8
seconds typical |
| Motor Stop
Time |
6
seconds or less |
Physical Specifications
| |
Operating |
Idle |
| Temperature |
5 - 55ºC |
-40 to 60ºC |
| Temperature Gradient
|
20ºC per hour
or less |
- |
| DE Surface Temperature |
60ºC or less |
- |
| Relative Humidity
|
8% to 80% RH |
5% to 95% RH |
| Maximum Wet Bulb
Temperature |
29ºC
non-condensing |
- |
| Altitude Range
|
-300 to 3,000
metres |
-300 to 12,000
metres |
| Vibration |
0.5G (5 to
500Hz) or less |
4.0G (5 to
500Hz) or less
(power off state after installation) |
| Shock |
5G (11ms max.)
or less |
75G (11ms max.)
or less
(during transportation and storage) |
| Acoustic noise
|
32dBA (3 axis,
idle) |
- |
|
