Deskstar 8
Product description
Models: DHEA-34331, 36481, 38451
Features
- PIO and Ultra DMA data transfer modes
- 472 KB adaptive sector buffer
- Industry standard mounting
- Advanced ECC on the fly (EOF)
- CHS and LBA addressing modes
- Power saving modes
- Robust design for EMC/RFI
- MR (magneto resistive) head technology
- No ID sector format
- S.M.A.R.T. function support
| Configuration |
38451 |
36480, 34860, 34330 |
| Interface |
ATA-3 |
ATA-3 |
| Device capacity (Formatted) 1 |
8.45 GB
|
6.48 / 4.86 / 4.33 GB |
| Sector size |
512 Bytes |
512 Bytes |
Recording zones
|
8 |
8 |
| User cylinders |
9784 |
8209 |
| Data heads |
8 |
8/6/5 |
| Disks |
4 |
4/3/3 |
| Areal density (Maximum) |
1.74 Gbits / sq. in. |
1,371 Gbits / sq. in. |
| Recording density (Maximum) |
162.6 KBPI |
159.4 KBPI |
| Track density |
10,700 TPI |
8,600 TPI |
| Performance |
38451 |
36480, 34860, 34330 |
| Data buffer 2 |
512 KB |
512 KB |
| Rotational speed |
5400 RPM |
5400 RPM |
| Latency (Average) |
5.6 ms |
5.56ms |
| Media transfer rate |
76.2 (inner) Mbits/sec
127.4 (outer) Mbits/sec |
74.0 (inner) Mbits/sec
127.4 (outer) Mbits/sec |
| Interface transfer rate
(Maximum AT) |
33.3 MB / sec
Ultra DMA Mode-2
16.6 MB / sec PIO Mode-4,
MW DMA Mode-2
|
33.3 MB / sec
Ultra DMA Mode-2
16.6 MB / sec PIO Mode-4,
MW DMA Mode-2
|
| Sustained data transfer rate |
10.2 (Max) - 5.8 (Min) MB / sec |
10.2 (Max) - 5.7 (Min) MB / sec |
Seek time
(Typical read) Average |
9.5ms |
9.5ms |
| Track-to-track |
2.2ms |
2.2ms |
| Full track |
15.5ms |
15.5ms |
| Reliablility |
38451 |
36480, 34860, 34330 |
| Error rates (Non-recoverable) |
<= 1 per 1.0E13 bits transferred |
<= 1 per 1.0E13 bits transferred |
| Contact start stop cycles |
40,000 |
40,000 |
| Power |
38451 |
36480, 34860, 34330 |
| Requirements |
+5 VDC (± -5%)
+12 VDC (± 10%,-8%) |
+5 VDC (± -5%)
+12 VDC (± 10%,-8%) |
| Dissipation (Typical) |
| Startup (Maximum peak) |
0.80A (5V), 2.13A (12V) |
0.80A (5V), 2.13A (12V) |
| Idle (Average) |
4.7W |
4.7W |
| Power consumption efficiency index 3 |
0.0006 W / MB |
0.0006 W / MB |
| Physical size |
38451 |
36480, 34860, 34330 |
| Height |
25.4mm |
25.4mm |
| Width |
101.6mm |
101.6mm |
| Depth |
146.0mm |
146.0mm |
| Weight (Maximum) |
580 g |
580 g |
| Operating environmental characteristics |
38451 |
36480, 34860, 34330 |
| Ambient temperature |
5 to 55 degrees C |
5 to 55 degrees C |
| Relative humidity (Non-condensing) |
8% - 90% |
8% - 90% |
| Maximum wet bulb (Non-condensing) |
294 degrees C |
294 degrees C |
| Shock (Half sine wave) |
10G / 11 ms |
| Vibration (Random (RMS)) |
0.67 G (5-500 Hz) |
| Non-operating environmental characteristics
| 38451 |
36480, 34860, 34330 |
| Ambient temperature |
-40 to 65 degrees C |
-40 to 65 degrees C |
Relative humidity (Non-condensing)
|
5% - 95% |
5% - 95% |
| Maximum wet bulb (Non-condensing) |
35 degrees C |
35 degrees C |
| Shock (Half sine wave) |
75 G / 11 ms |
| Vibration (Random (RMS)) |
1.04 G (2-200Hz) |
11MB = 1,000,000 Bytes 1 GB = 1,000,000,000 Bytes
2 Up to 32 KB used for firmware
3 Idle Power Dissipation / Formatted Capacity
|
