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WED7G208IDE33ADC25 Datasheet(PDF) 1 Page - White Electronic Designs Corporation |
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WED7G208IDE33ADC25 Datasheet(HTML) 1 Page - White Electronic Designs Corporation |
1 / 8 page 1 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs WED7GxxxIDE36 WED7GxxxIDE33 July, 2003 Rev. 0 PRELIMINARY* White Electronic Designs Corp. reserves the right to change products or specifications without notice. DimmDrive Solid State IDE Flash Module with Power Failure Protection* IDE36 DimmDrive Solid State IDE Flash Module IDE33 FEATURES ■ 144 pin SO-DIMMpackage with IDE pinouts ■ Plug-and-play solid state disk ■ NAND Flash memory technology by SanDisk ■ 3.3 V and 5.0 V power supply operation ■ 16MB – 2GB memory density ■ Low power consumption ■ ECC error correction ■ 512 Byte Sector compatible to IDE HD Drives ■ Supports true IDE mode ■ Commercial temperature range 0°C - +70°C ■ PFP Power Failure Protection Circuit (IDE36) POWER BACKUP FEATURES (IDE36) ■ Added PFP circuit built in to preserve card integrity during accidental power loss ■ PFP circuit may not prevent file/data loss if power failure occurs during a long write operation ■ PFP control circuit prevents false operations after power loss ■ Improves card integrity in applications with a high risk of power failure ■ Minimum power backup time of 10ms APPLICATIONS ■ Embedded systems ■ Internet Access Devices ■ Set Top Boxes ■ WEB Browser ■ Routers, Networking ■ WEB phones, car PC, DVD, HPC ■ · Point-of-sale ■ Medical and Telcom ■ Other applications requiring embedded or solid state storage GENERAL DESCRIPTION The DimmDrive WED7GxxxIDE36 is a high performance single chip flash disk IDE module with Power Failure Protection Circuit available in 144 Pin SO-DIMM package. The DimmDrive WED7GxxxIDE33 does not have the additional PFP circuit. The additional circuit provides protection against accidental power loss. This circuit provides an internal power supply and control logic to stop receiving data and complete writing the last sector of data received. This is not intended to be backup for the host system. It will only allow the last sector received to finish writing and no more. It will improve card integrity in applications with a high risk of power failure. The read/write unit is 1 sector (512 bytes) sequential access. The module is based on SanDisk NAND Flash technology and utilizes 128Mb, 256Mb, 512Mb or 1Gb memory components to provide the maximum in module density. The DimmDrive WED7GxxxIDE36/33 utilizes a SanDisk Flash ChipSet 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. The DimmDrive WED7GxxxIDE36/33 module will have the same functionality and capabilities of an intelligent ATA (IDE) disk drive. Once the device has been configured by the user, it appears to the host as a standard ATA disk drive. The on-board controller is a highly integrated solution 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 * Patent pending |
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