XR20M1170G16-0B Datasheet, PDF (56/56 Pages) Exar Corporation – I2C/SPI UART WITH 64-BYTE FIFO

XR20M1170
I2C/SPI UART WITH 64-BYTE FIFO
REV. 1.1.0
REVISION HISTORY
DATE
September 2006
REVISION
P1.0.0
October 2006
P1.0.1
December 2006
P1.0.2
May 2007
1.0.0
June 2011
1.0.1
July 2012
1.1.0
DESCRIPTION
Preliminary Datasheet.
Updated Thermal Resistance Data.
Added I2C/SPI timing diagrams.
Final Datasheet. Updated power supply and sleep currents. Updated QFN package
drawing and added the parameter "k".
Removed “DMA mode” since this is a legacy feature that is not supported in this
device. Added and updated maximum SPI clock frequency to the AC Electrical Char-
acteristics table for SPI-Bus Timing. Updated ordering information and removed ref-
erences to the discontinued 28-pin QFN package (PDN_11-0502-01).
Clarified "OP2#" pin since the M1170 does not have OP2# output pin.
Changed "AC Electrical Characteristics-UART Clock" table according to the PCN12-
0614-02.
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 July 2012.
Send your UART technical inquiry with technical details to hotline: [e-mail].
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
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