Hitachi DMDM-10340, DMDM-10170 DATASHEET

The revolutionary IBM 340 MB microdrive delivers high
capacity and high performance for portable electronic devices

IBM family of microdrives

Highlights

Offers high-capacity, high­performance removable storage
with capacities of 340 MB
and 170 MB

Ideal for digital cameras,
handheld PCs, digital audio
players, notebook PCs, and other
portable handheld electronic
devices

Industry-standard CF
format allows easy integration
into a variety of handheld prod­ucts. Also compatible with
Personal Computer Memory Card
International Association
(PCMCIA) Type II with use of an
adapter

Incorporates leading-edge IBM
technologies such as giant
magnetoresistive (GMR) head
technology, load/unload,
Enhanced Adaptive Battery Life
Extender* 3.0, and TrueTrack*
servo for maximum capacity,
performance, and reliability

+ Type II

New markets for high-capacity,
compact storage

The IBM 340 MB microdrive provides
breakthrough storage capacity for
portable electronic devices in an
industry-standard CF+** Type II form
factor. The IBM 340 MB microdrive allows
users of digital cameras to capture more
high-resolution photos without the need
for frequent downloading of data.
Handheld PC users can access more
applications and maintain large data­bases. Notebook and desktop PC users
can backup and transport their data more
quickly and conveniently.

More memory, more portability,
more value

With capacities of 340 MB or 170 MB on a
single hard disk drive, the IBM family of
microdrives offers high-capacity yet cost­effective personal storage for electronic
devices. And weighing only 16 grams, the
340 MB and 170 MB microdrives deliver
high capacity in a compact, portable
package, a key requirement for today’s
handheld electronic devices—from
subnotebooks to digital cameras to new
mobile information products.

IBM 340 MB microdrive, actual size (model,
for illustration only)

High performance,
improved productivity

With media transfer rates of up to

45.2 Mb/sec and rotational speeds of
4500 RPM, the IBM 340 MB and 170 MB
microdrives offer performance advan­tages over current flash memory. That
means improved productivity for users.
The IBM 340 MB microdrive can improve
operational efficiency because users will
not have to download data as often.

IBM microdrives at a glance

IBM family of microdrives

Model IBM 340 MB microdrive/IBM 170 MB micr odrive

DMDM-10340/DMDM-10170

Configuration

Interface CF+ (ATA and PCMCIA compatible)
Capacity (MB) 340/170
Sector size (bytes) 512
Disks 1
Areal density (max Gbits/sq. inch) 5.04
Recording density (max KBPI) 265.1
Track density (TPI) 19,000

Performance

Data buffer (KB) 128*
Rotational speed (RPM) 4500
Latency (average ms) 6.7
Media transfer rate (Mb/sec) 30.1-45.2
Interface transfer rate (MB/sec) 5.2
Sustained data rate,

typical read or write (MB/sec) 1.8 (min);3.0 (max)
Seek time - Read

Ave rag e (ms) 15
Tr ack-to-track (ms) 2
Fu ll-t rac k (ms) 20

Reliability

Error rate (nonrecoverable) < 1 per 1.0 E 13 bits transferred
Load/unload cycles 300,000

Power +3.3V power supply +5V power supply

Voltage requirement (auto-detect) +3.3VDC, ± 5% or +5 VD C, ±5 %
Current (write) 300 mA 330 mA
Current (standby) 65 mA 80 mA
Power consumption efficiency (watts/MB) 0.00215/0.00429 0.00353/0.00706

Physical size

Height (mm) 5 +0 / -0.1
Width (mm) 42.80/±0.10
Depth (mm) 36.40/±0.15
Weight (g) 16 (max)

Environmental characteristics Operating Nonoperating

Ambient temperature 5 to 55° C -40 to 65° C
Relative humidity (noncondensing) (%RH) 8 to 90 5 to 95
Maximum wet bulb (noncondensing) 29.4 40
Shock (half sine wave) 150 G (2 ms) 1000 G (1 ms)
Vibration (random [RMS]) 0.67 G (5 to 500 Hz) 3.01 G (5 to 500 Hz)
Vibration (swept sine) 1 G 0-peak (5 to 500 Hz) NA

* 32 KB used for microcode

For more information

Internet and e-mail:

• www.ibm.com/storage/microdrive

• [e-mail]

IBM hard disk drive product information:

• 1 888 -IBM-5214 (United States)

• 507-253-4110 (outside of the United States)

• IBM 340 MB microdrive

• IBM 170 MB microdrive

• Travel Kit for the IBM 340 MB microdrive,

including microdrive, PC Card adapter,
and fiel d case

• Travel Kit for the IBM 170 MB microdrive,

including microdrive, PC Card adapter,
and fiel d case

All of these products include a carrying
case for the IBM 340 MB or 170 MB
microdrive.

www.ibm.com/storage/microdrive

© International Business Machines Corporation 1999

IBM Storage Systems Division
5600 Cottle Road
San Jose, CA 95193

Produced in the United States
6-99
All rights reserved

*IBM is a registered trademark and Enhanced

Adaptive Battery Life Extender, and TrueTrack are
trademarks of International Business Machines
Corporation.

** IBM is an authorized licensee of the CF

Other names are trademarks or registered
trademarks of their respective owners.

Product description data represents design
objectives and is provided for comparative purposes;
actual results may vary depending on a variety of
factors. Product claims are true as of the date of the
first printing. This product data does not constitute a
warranty. Questions regarding IBM warranty terms or
the methodology used to derive this data should be
referred to an IBM representative. Data subject to
change without notice. IBM development plans are
subject to change at any time without prior notice.

References in this publication to IBM products, programs,
or services do not imply that IBM intends to make them
available in all countries in which IBM operates.

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