Compaq 305 specifications Diskette Drive

Models: 305

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Presario 305 Model

Before You Begin

 

Specifications

 

Parts Catalog

 

 

 

 

 

 

 

 

 

 

Removal Sequence

 

Troubleshooting

 

Battery Operations

 

 

 

 

 

 

 

 

 

Index

Product Description

 

Pin Assignments

 

 

 

 

 

 

Specifications (continued)

CD drive

 

 

Physical and environmental

System Interrupts

System DMA

System I/O Address

System Memory Catalog

Display

Diskette drive

Hard drive

 

 

Battery pack

 

Diskette Drive

Diskette Size

Light

Height

Bytes per Sector

Sectors per Track High Density

Low Density

Tracks per Side

High Density

Low Density

Read/Write Heads

Access Times

Track-to-Track (high/low)

Average (high/low)

Settling Time

Latency Average

Energy

Voltage

Amp-hour capacity

Watt-hour capacity

Temperature

Operating

Non-operating

3.5 inch On drive

0.55 in (1.40 cm)

512

18 (1.44 MB)/15

(1.2MB)

9

80 (1.44 MB)/80

(1.2MB)

80

2

3 ms/6 ms

94 ms/174 ms

15ms

100 ms

14.4V

2.8Ah

27 Wh

41 to 95°F/5 to 35 °C -22 to 140°F/-30 to 60 °C

Hard Drive

Formatted Capacity per Drive (GB)

Logical Configuration Cylinders

Heads

Sectors per track

Bytes per sector

Typical Seek Times, ms (including settling) Single track

Average Full stroke Rotational speed

Transfer Rate

Operating Temperature

4.3GB

4.3GB2

8955

4

N/A

512

N/A

4 ms

13 ms (read)

23ms

4,009 rpm

33.3MB/s

41 to 131°F/5 to 55 °C

DVD Drive

Applicable CD-ROM (Mode 1, 2, and 3)

Disc CD-XA ready (Mode 2, Form 1 and Form 2) CD-I ready (Mode 2, Form 1 and Form 2) CD-R (ready only)

CD Plus

Photo CD (single/multisession) CD Extra

Video CD

CD-WO (fixed packets only) CD-Bridge

Center Hole

.59 in/15 mm

Diameter

 

Disc

12 cm, 8 cm

Diameter

 

Disc

1.2 mm

Thickness

 

Track Pitch

1.6 um

Capacity

Mode 1, 12

 

Mode 2, 12 cm

 

8 cm

Laser

Beam Divergence

 

Output Power

 

Type

 

Wave Length

550MB

640MB

180MB

53.5±">1.5 degrees

0.24± 0.1 mw

Semiconducter Laser GaA1As 780 nm ± 25 nm

Access Time

Random

< 150 ms

 

Full Stroke

< 300 ms

Audio Output

Line out

0.7 V rms

Level

Headphone

none

Cache Buffer

128 KB

 

Data

24x

150 KB/sec

Transfer

Variable

1500 to 3600 KB/sec

Rate

Normal PIO Mode 4 (single

16.6 MB/sec

(Sustained)

burst)

< 8.3 seconds

 

Startup time

 

Stop time

< 4.0 seconds

Lithium Ion (Li Ion) Battery Pack

Dimensions

Height

Length

Weight

Cells

Energy

Voltage Amp-hour capacity Watt-hour capacity

Environmental Requirements Operating Temperature Non-operating Temperature

U.S.

Metric

0.9 in

2.3 cm

10.47 in

26.6 cm

0.48 lb

0.21 kg

4 Li-Ion

14.4V

2.8Ah 27 Wh

41° to 95°

F

5° to 35°

C

-22° to 140°

F

-30° to 60°

C

Page 81
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Compaq 305 specifications Diskette Drive