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NOTICE
EXAR Corporation reserves the right to make changes to the products contained in this publication in order to
improve design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any
circuits described herein, conveys no license under any patent or other right, and makes no representation that
the circuits are free of patent infringement. Charts and schedules contained here in are only for illustration
purposes and may vary depending upon a user’s specific application. While the information in this publication
has been carefully checked; no responsibility, however, is assumed for inaccuracies.
EXAR Corporation does not recommend the use of any of its products in life support applications where the
failure or malfunction of the product can reasonably be expected to cause failure of the life support system or
to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless
EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has
been minimized; (b) the user assumes all such risks; (c) potential liability of EXAR Corporation is adequately
protected under the circumstances.
Copyright 2012 EXAR Corporation
Datasheet April 2012.
Send your UART technical inquiry with technical details to hotline: uarttechsupport@exar.com.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
XR17V358
HIGH PERFORMANCE OCTAL PCI EXPRESS UART
REV. 1.0.4
REVISION HISTORY
DATE
REVISION
DESCRIPTION
April 2009
P1.0.0
Preliminary Datasheet.
April 2009
P1.0.1
Fixed typo in Pin Descriptions. G12 should be "VCC12" as shown in
July 2009
P1.0.2
Added preliminary DC Electrical Characteristics. Clarified VCC33 and
VCC12 pin descriptions.
December 2009
Rev 1.0.0
Final datasheet. Updated DC Electrical specs.
September 2010
Rev 1.0.1
Corrected pin "TRST#" polarity.
December 2010
Rev 1.0.2
Corrected device status on page 2 to "Active".
April 2011
Rev 1.0.3
Removed the "MSI-X Capable Capability ID" on page 12 table 1.
April 2012
Rev 1.0.4
Removed the references to "burst mode" (fast back to back transactions) in
section 2 since this feature is not supported in the PCIe specs (only in the
PCI specs). Therefore, it is not supported by the XR17V358.