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OnSpec xSil 145 IDE Flash Media Reader Controller Chip



OnSpec xSil 145 provides a low cost and low component solution to connect IDE, PCMCIA and CF host to a wide range of memory card formats.


  • 128-pin 16mm x 16mm TQFP package

  •  Built-in oscillator

  •  Serial port

  • Two General Purpose Timers

  • Watchdog Timer

  • 16 bit RISC Processor

  • Internal RAM for firmware enhancements and data transfer

  • Internal ROM contains BIOS and Application code.

  • Serial EEPROM for firmware enhancements for Flash media

  • Optimum hardware controlled transfer for speed and scalability

  • Supports up to IDE PIO mode 4 and UDMA mode 5 data transfer on Host side.

  • Supports Memory Mode, I/O Mode, and True IDE modes.
  • Supports up to IDE PIO mode 6 and UDMA mode 5 data transfer on Device side.

  • Supports ATA protocol

 Ordering Information

Part Number



xSil 145

ATA/PCMCIA/CF to industry standard flash memories

128 TQFP


Technical and Design-in Information

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Design Support ( OnSpec Engineering to review if supported and can provide these services.)

  • Card Manufacturer Compatibility Testing (Software Release Notes)

  • Four Layer Board Reference Design, BOM, Schematic and Gerber

  • Flash Media Association Contact List


This product is covered by one or more of the following patents:
US Pat. 5784584, 5809336, 5841424, 6438638, 6598148, 6832281, 6859361, 6859369
Taiwan Pat. I 222564
China Pat. CN 018152163
S.Korea Pat. KR 476817
Other Foreign & US Patents Pending


Information in this document is provided in connection with OnSpec Electronic products. No license, express or implied, by estoppels or otherwise, to any intellectual property rights is granted by this document. Except as provided in OnSpec Electronic's Terms and Conditions of Sale for such products, OnSpec Electornic assumes no liability whatsoever, and OnSpec Electronic disclaims any express or implied warranty, relating to sale and/or use of OnSpec Electronic products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement or any patent, copyright or other intellectual property right.

OnSpec Electronic products are not intended for use in medical, life saving, or life sustaining applications.


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Download: Product Sheet PDF Size=260KB