XR72L52 Datasheet, PDF (480/480 Pages) Exar Corporation – TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L52
REV. 1.0.1
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TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REVISION HISTORY
Added sections on HDLC controller.
Rev P1.1.3 -- Made corrections to figures 37, 38, 39, 65, 75, 102, 120, 130, 161, 163, 178 and 188.
Rev P1.1.4 -- Figure 2: Pin Out diagram & Pin List were incorrect, made corrections.
Rev P1.1.5 -- Corrected many errors and typos in body of the document.
Rev P1.1.6 -- Made final additional corrections to tables, figures, timing diagrams and body text descriptions of
operation.
Rev 1.0.1 -- Corrected Device ID number and updated Revision ID number. Corrected Rev P1.1.4 to 1.0.1
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 cir-
cuits 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 pur-
poses 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 2005 EXAR Corporation
Datasheet February 2005.
Reproduction, in part or whole, without the prior written consent of EXAR Corporation is prohibited.
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