These
plug into IDE i/f on host CPU board, 40-pin or 44-pin.There are also SATA i/f modules.
We can supply current items shown on the PQI website: click here
Delivery time is usually about 1 week. iol
Jump down to DiskonModule - DOM They plug into IDE i/f on host CPU board
Solid State Disk with IDE Interface (HD replacement) plug into IDE ribbon cable
PC/104 Solid State Disk cards for DiskOnChips
Information about Wear Levelling required with solid state disks (this page)
These
plug into IDE i/f on host CPU board, 40-pin or 44-pin.
There are also SATA
i/f modules.
We can supply current items shown on the PQI
website: click here
Delivery time is usually about 1 week.
iol
Standard
II Series: | Standard
Series: |
Hi-Speed Series:
• Hi-Speed
DOM 40-pin
• Hi-Speed
ICF(Industrial CF)
• Hi-Speed
Flash Disk Data
Sheet Hi-Speed DJ Wide Temp Series (.pdf)
Turbo Series:
•
Turbo
DOM
• Turbo
ICF (Industrial CF)
• Turbo
Flash Disk Turbo
DOM Wide Temperature Data
Sheet Turbo DJ Wide Temp Series (.pdf)
PQI’s DiskOnModule
emulates an ordinary magnetic hard disk.
It is based on TDK NAND Type
flash memory controller technology, which is a high density,
non-volatile
read/write device technology.
This product complies with 40/44 PIN IDE (ATA)
standard interface and is suitable for data storage
memory medium for portable
systems which have IDE interface.
Just plug the DiskOnModule into the IDE connector on the host and use the DiskOnModule the same as the hard disk drives.
Has wear levelling features ... see the description below in next item: 2.5" Flash Disk with IDE interface - PQI.
Features
· High Performance
· Non-volatile Flash Memory
·
Flash data retention is guaranteed for at least 10 years,
with
no battery or other power source required.
· 100% True Mode IDE HDD
Compatible
· Broad Operating System and Processors Supports
·
Capacities to Gigabytes
· Low Power Consumption Data
on PQI DiskOnModule: click here
· Robust Error Correction
·
High Reliability
· Design with TDK GBDriver series product to access
NAND type flash memory.
DOMs Industrial Wide Temperature Price List for Standard II Series DOM & CF (-40°~+85°) (.pdf file) 2/08
CF Cards Wide Temperature:
With
or without Write Protect Switch, Single flash Chip; W:5MB/s, R: 10MB/s
With
or without Write Protect Switch, Duo flash Chip; W:10MB/s, R: 20MB/s
DOMs Industrial Wide Temperature Price
List for Hi-Speed Series (-40°~+85°) (.pdf file) 2/08
DOM
40-pin or 44-pin, Vertical or L-formed, 1.8" or 2.5"
IDE Solid State Disk to 16GB
CF Cards Wide Temperature:
With
or without Write Protect Switch, Single flash Chip;
With
or without Write Protect Switch, Duo flash Chip
Industrial
Wide Temperature Price
List for Turbo Series (.pdf file) 2/08
DOM
40-pin or 44-pin, Vertical, 2.5" IDE Solid State
Disk to 8GB
CF Cards Wide Temperature:
With
or without Write Protect Switch, Single flash Chip;
With
or without Write Protect Switch, Duo flash Chip
Information from manufacturer PQI.
Flash write/erase cycles
Generally
the NAND type flash memory guarantees 100,000 write/erase cycles on each physical
write/erase sector.
(Physical sector: means the real sector on NAND flash
device.)
Logical Sector
The accessed unit by operating system (WINDOWS
series, Linux.......etc). A logical sector size is 512byte.
A
NAND type flash device without wear leveling algorithm might always program each
logical sector to the same physical sector.
For example: A 256MB NAND flash
device writing 16Kbyte/sec data into the on flash device.
The life cycle without
wear levelling will be as below:
DOM Lifetime (theoretical ) = 100,000
x 0.95 / (60x60x24) = 1.1 days
To
avoid this happened our controller provides wear leveling function that will ensure
the data being evenly writing onto flash device.
Example : A 256MB flash device
writing 16KB data onto flash device the formula as below, with wear levelling:
DOM Lifetime (theoretical ) = (256MB-0MB)x1024x100K*0.95 / ((16KB/sec)
x 60x60x24) = 18,014 days
Notes:
•
The "0.95": After the flash is formatted the capacity might lower than
the stated capacity.
• 1MB = 1024KB
• "60*60*24" = 86400
writing times per day, at 1 time /sec
• The size of your OS & AP.
In this case we set it as "0"
• "16KB/sec": The data
size that is writing onto flash device per second.
If
the data less than 16KB we recommend you still calculate it with 16KB.
•
"100,000": The limitation of flash memory's erase cycles.
P.S. The
above formula is an ideal condition. Each NAND flash device erase cycles may vary,
so the reality DOM lifetime (theory) need to times 0.7.
• Expected
minimum DOM lifetime = DOM lifetime x 0.7
Flash
Drives and Operating Systems
Flash drives
with wear levelling are generally suitable for running standard desktop operating
systems such as Windows XP Pro, but the lifetime of the flash device will be limited
by the amount and frequency of data writes done to it over a long period of time.
Generally the larger the flash drive, the more space it has to spread out
the data writes, and hence the longer it will last for a given amount of activity.
The following operating systems are well suited for flash drives as they do not constantly write data to the system drive:
·
Windows XP Embedded when set up to boot from a read-only partition;
·
Windows Embedded CE;
· Many variants of Linux can also be configured
to run from a read-only partition, or to minimise data written back to the system
drive;
· plus all the lesser known OS’s (many derived from Unix)
that designed for embedded systems.
Info about write cycles and wear levelling from Wikipedia: http://en.wikipedia.org/wiki/Solid_state_disk
Taipei Taiwan - Power Quotient International Co., Ltd. has announced to form a joint venture in Taiwan with TDK Corporation, Japan to research, develop and market Disk on Module (DOM) and Solid State Disk (SSD). The new company will focus on storage solutions for industrial and commercial use PCs/Systems. Its initial capital is for PQI 40% and TDK 60%. The specific terms of the agreement are confidential.
Since the establishment in 1997, PQI has been a pioneer of the industry by introducing solid state disk (SSD) named Disk On Module (DOM) and acquiring patents for DOM on the applications of industrial PCs such as POS systems, Thin Clients, and etc.
Prices (Australian dollars) do not include GST and may change without notice.
2.5"
Flash Disk with IDE interface - PQIEmulates
an ordinary 2.5" 44-pin magnetic hard disk. 100mm x 69.85mm x 8.4mm
Drawing with dimensions
FDXXX-25B.XH7B series is PQI’s 2.5½ IDE Flash Disk Data:
click here (.pdf file 29 pages)
No
extra or special algorithm or firmware driver required.
Just plug the PQI's
2.5½ IDE FLASH DISK into the IDE slots and operate it same as general Hard Disk
Drives.
Temperature operating: 0 to 70°C. Write: 1.6MB/sec,
read 3.3MB/sec (typ.). Burst 5.2MB/sec PIO mode 1
ECC (Error Correction Code) feature built into the hardware and firmware, will
correct 1 bit errors, and detect 2 bits errors.
ECC ensures the accuracy
of the data, and decreases the effect of the crosstalk on the bus.
PCMCIA Card Drives click here
PC/104 Solid State Disk cards |  |
| DiskOnChip is now an obsolete product. Info Bootable Flash Disk,
DOS, Windows Embedded, NT/CE/2000, Linux, pSOS+, VxWorks, QNX, BE and more (Can be customized for other environments) |  |
More information about "Wear Levelling", and lifespan calculator: click here
TSOP: Thin Small Outline Package: A very-thin, plastic, rectangular surface mount chip package with gull-wing pins on its two short sides.
