WED7GxxxATA33
White Electronic Designs
PRELIMINARY*
DIMMDrive Solid State ATA Flash Module
FEATURES
DESCRIPTION
The DIMMDrive WED7GxxxATA33 is a high performance single
chip flash disk module available in 144 Pin SO-DIMM package.
The module is based on SanDisk NAND Flash technology and
utilizes the 128Mb, 256Mb, 512Mb or 1Gb memory components
to provide the maximum in module density.
144 Pin SO-DIMM, JEDEC package
Plug-and-play solid state disk
NAND Flash memory technology by SanDisk
PC CARD ATA compatible - memory mapped or I/O operation
3.3 volt & 5.0 volt power supply operation
16MB - 768MB memory density
- (1GB - Q3/02)
The DIMMDrive WED7GxxxATA33 utilizes a SanDisk Flash
ChipSet controller which is designed specifically for use as a
Flash mass storage controller for the SanDisk memory devices.
This interface allows a host computer to issue commands to
read or write blocks of memory in the Flash memory array. The
intelligence to manage the interface protocols, data storage and
retrieval as well as ECC, defect handling and diagnostics are
controlled by this device. Automatic power management and
clock control is handled by the controller as well.
Low Power Consumption
ECC error correction
Supports true IDE mode
8Kbyte data buffers
The DIMMDrive WED7GxxxATA33 module will have the same
functionality and capabilities of an intelligent ATA (IDE) disk
drive. An advantage of the on board Flash controller and it's
ATA command set, is the ease of software development by
the user. Once the device has been configured by the user, it
appears to the host as a standard ATA disk drive. Additional
ATA commands have been provided to enhance the system
performance.
Broad O/S support: DOS, Linux, Windows 3.X, Windows 95,
Windows NT4.0/5.0, Windows CE, others
Compatible with major processors: x86, Media GX,
PowerPC, 68K, MIPS, SHx, StrongArm, others
Full Hard Disk emulation and Boot capability
Easy to use interface, JEDEC standard
Supports power down commands and sleep modes
Commercial temperature range 0C + 70C
Industrial temperature range -40C +85C
The on-board controller is a highly integrated solution and
the controller is designed to handle all intelligent operations,
even the rare cases when new defects arise and need to be
mapped out or replaced by a spare. The hardware performs
the complicated task of ECC detection and correction and
will return good data to the host. The controller manages all
defects and errors and makes the Flash memory appear as
perfect memory to the host.
MODULE APPLICATIONS
Embedded systems
Internet Access Devices
Set Top Boxes
The DIMMDrive WED7GxxxATA33 module also provides a
more cost effective solution to the traditional hard disk media.
The module is perfect for applications requiring upgradeability
to higher densities and for those applications with limited space
availability and power consumption requirements.
WEB Browser
Routers, Networking
WEB phones, car PC, DVD, HPC
Point-of-sale
Unlike standard IDE drives, no cables or extra space is required.
The module has no moving parts providing significant reduction
in power consumption and increasing reliability. Simply insert
the module into a standard 144 Pin SO-DIMM socket and you
then have a bootable flash disk.
Medical and Telecom
Other applications requiring embedded or solid state
storage
* This datasheet is preliminary, therefore all specifications are subject to change
without notice.
The DIMMDrive WED7GxxxATA33 is available with memory
densities of 16MB to 768MB today with 1GB density available
in Q3/02.
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
July, 2002
Rev. 0
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
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