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<TITLE>S-8</TITLE>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">






<DIV align="right" style="font-size: 10pt; margin-top: 12pt"><B>Registration No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B>
</DIV>


<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>Form&nbsp;S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
Under<BR>
THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>AGERE SYSTEMS INC.</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>22-3746606</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction<BR>
of incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. Employer Identification No.)</TD>
</TR>
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</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>1110 American Parkway NE<BR>
Allentown, Pennsylvania 18109</B><BR>
(Address of Principal Executive Offices)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Agere Systems Inc. Management 401(k) Plan<BR>
Agere Systems Inc. Represented 401(k) Plan</B><BR>
(Full Title of Plans)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Jean F. Rankin<BR>
Senior Vice President, General Counsel and Secretary<BR>
Agere Systems Inc.<BR>
1110 American Parkway NE<BR>
Allentown, Pennsylvania 18109<BR>
(610)&nbsp;712-1000</B><BR>
(Name, address and telephone number, including area code, of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>CALCULATION OF REGISTRATION FEE</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="28%">&nbsp;</TD>
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    <TD width="8%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
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    <TD width="2%">&nbsp;</TD>
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    <TD width="2%">&nbsp;</TD>
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    <TD width="6%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of Each Class</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>of Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Offering price per</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>aggregate offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>to be registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>share (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>price (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>registration fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common stock (2)</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">1,500,000</TD>
    <TD nowrap style="border-top: 2px solid #000000">(3)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">11.715</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common stock (2)</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="right" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">700,000</TD>
    <TD nowrap style="border-top: 2px solid #000000">(4)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">11.715</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Total</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">2,200,000</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">25,773,000</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">3,033.48</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px solid #000000">&nbsp;</TD>
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<DIV style="margin-top: 3pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of calculating the registration fee and, pursuant to Rule
457(c) under the Securities Act of 1933, based on the average of the high and low sale prices of
the common stock of Agere Systems Inc. on the New York Stock Exchange on August&nbsp;4, 2005.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Includes associated rights to purchase Series&nbsp;A Junior Participating preferred stock, which
initially are attached to and trade with the shares of Agere&#146;s common stock being registered
hereby. Value attributable to such rights, if any, is reflected in the market price of Agere&#146;s
common stock.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(3)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents securities to be registered for sale in connection with the Agere Systems Inc.
Management 401(k) Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(4)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents securities to be registered for sale in connection with the Agere Systems Inc.
Represented 401(k) Plan.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Pursuant to Rule&nbsp;416 under the Securities Act of 1933, to the extent additional shares of Agere
common stock may be issued or issuable as a result of a stock split or other distribution declared
at any time by the Board of Directors while this registration statement is in effect, this
registration statement is hereby deemed to cover all such additional common stock.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this registration statement
also covers an indeterminate amount of interests to be offered or sold pursuant to the employee
benefit plan(s) described herein.
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>






<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">




<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
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<TR><TD colspan="9"><A HREF="#000">PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;3. Incorporation of Documents by Reference.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;4. Description of Securities.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;5. Interests of Named Experts and Counsel.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;6. Indemnification of Directors and Officers.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;7. Exemption from Registration Claimed.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;8. Exhibits.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;9. Undertakings.</A></TD></TR>
<TR><TD colspan="9"><A HREF="#008">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv5w1.htm">EX-5.1: OPINION OF JEAN F. RANKIN</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv5w2.htm">EX-5.2: IRS DETERMINATION LETTER</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv5w3.htm">EX-5.3: IRS DETERMINATION LETTER</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv23w1.htm">EX-23.1: CONSENT OF PRICEWATERHOUSECOOPERS LLP</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv23w2.htm">EX-23.2: CONSENT OF KPMG</A></TD></TR>
<TR><TD colspan="9"><A HREF="y11905exv24.htm">EX-24: POWER OF ATTORNEY</A></TD></TR>
</TABLE>
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<!-- link1 "PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>
</DIV>

<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference." -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed with the Securities and Exchange Commission are incorporated
herein by reference (File No.&nbsp;1-16397):
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;Agere&#146;s Annual Report on Form 10-K for the fiscal year ended September&nbsp;30, 2004, filed
with the Commission on December&nbsp;13, 2004.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;Agere&#146;s Quarterly Report on Form 10-Q for the quarter ended December&nbsp;31, 2004, filed with
the Commission on February&nbsp;4, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Agere&#146;s Quarterly Report on Form 10-Q for the quarter ended March&nbsp;31, 2005, filed with the
Commission on May&nbsp;9, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;Agere&#146;s Quarterly Report on Form 10-Q for the quarter ended June&nbsp;30, 2005, filed with the
Commission on August&nbsp;4, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e)&nbsp;Agere&#146;s Current Reports on Form 8-K filed with the Commission on October&nbsp;26, 2004, January
25, 2005, January&nbsp;26, 2005, March&nbsp;9, 2005, April&nbsp;26, 2005, June&nbsp;1, 2005 and July&nbsp;26, 2005, other
than information contained in any such report that is furnished under Items 2.02 or 7.01 and any
related exhibits.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(f)&nbsp;The description of Agere&#146;s common stock contained in our Current Report on Form 8-K,
filed on June&nbsp;1, 2005, including any amendment or reports filed for the purpose of updating that
description.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(g)&nbsp;Agere Systems Inc. Management 401(k) Plan&#146;s Annual Report on Form 11-K for the year ended
December&nbsp;31, 2004.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(h)&nbsp;Agere Systems Inc. Represented 401(k) Plan&#146;s Annual Report on Form 11-K for the year ended
December&nbsp;31, 2004.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents filed subsequent to the date hereof by Agere with the Securities and Exchange
Commission pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934
and prior to the filing of a post-effective amendment hereto which indicates that all securities
offered hereby have been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference herein and made a part hereof from their respective dates of
filing; <I>provided, however, </I>that the documents enumerated above or subsequently filed by Agere
pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934 in each year
during which the offering made hereby is in effect prior to the filing with the Securities and
Exchange Commission of Agere&#146;s Annual Report on Form 10-K covering such year shall not be
incorporated by reference herein or be a part hereof from and after the filing of such Annual
Report on Form 10-K.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any statement contained in a document incorporated by reference herein shall be deemed to be
modified or superseded for purposes hereof to the extent that a statement contained herein or in
any other subsequently filed document that is incorporated by reference modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part hereof.
</DIV>
<!-- link2 "Item&nbsp;4. Description of Securities." -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>
<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel." -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers." -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the General Corporation Law of the State of Delaware provides that a
corporation may indemnify directors and officers as well as
other employees and individuals against expenses including attorneys&#146; fees, judgments, fines and
amounts paid in settlement in connection with various actions, suits or proceedings, whether civil,
criminal, administrative or investigative other than an action by or in the right of the
corporation, a derivative action, if they acted in good faith and in a manner they reasonably
believed to be in or not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, if they had no reasonable cause to believe their conduct was
unlawful.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A similar standard is applicable in the case of derivative actions, except that
indemnification only extends to expenses including attorneys&#146; fees incurred in connection with the
defense or settlement of such actions, and the statute requires court approval before there can be
any indemnification where the person seeking indemnification has been found liable to the
corporation. The statute provides that it is not exclusive of other indemnification that may be
granted by a corporation&#146;s by-laws, disinterested director vote, stockholder vote, agreement or
otherwise. Agere&#146;s certificate of incorporation provides that each person who was or is made a
party or is threatened to be made a party to or is involved in any action, suit or proceeding,
whether civil, criminal, administrative or investigative, by reason of the fact that such person,
or a person of whom such person is the legal representative, is or was a director or officer of
Agere or is or was serving at Agere&#146;s request as a director, officer, employee or agent of another
corporation or of a partnership, joint venture, trust or other enterprise, including service with
respect to employee benefit plans, whether the basis of such proceeding is the alleged action of
such person in an official capacity as a director, officer, employee or agent or in any other
capacity while serving as a director, officer, employee or agent, will be indemnified and held
harmless by Agere to the fullest extent authorized by the General Corporation Law of the State of
Delaware, as the same exists or may hereafter be amended against all expense, liability and loss
reasonably incurred or suffered by such person in connection therewith.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Agere&#146;s certificate of incorporation also provides that Agere will pay the expenses incurred
in defending any such proceeding in advance of its final disposition, subject to the provisions of
the General Corporation Law of the State of Delaware. Such rights are not exclusive of any other
right which any person may have or thereafter acquire under any statute, provision of the
certificate, by-law, agreement, vote of stockholders or disinterested directors or otherwise. No
repeal or modification of such provision will in any way diminish or adversely affect the rights of
any director, officer, employee or agent of Agere thereunder in respect of any occurrence or matter
arising prior to any such repeal or modification.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Agere&#146;s certificate of incorporation also specifically authorizes Agere to maintain insurance
and to grant similar indemnification rights to Agere&#146;s employees or agents. The General
Corporation Law of the State of Delaware permits a corporation to provide in its certificate of
incorporation that a director of the corporation shall not be personally liable to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a director, except for
liability for:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>any breach of the director&#146;s duty of loyalty to the corporation or its stockholders;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>acts or omissions not in good faith or which involve intentional misconduct or a knowing
violation of law;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>payments of unlawful dividends or unlawful stock repurchases or redemptions; or &#151; any
transaction from which the director derived an improper personal benefit.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Agere&#146;s certificate of incorporation provides that none of Agere&#146;s directors will be
personally liable to Agere or its stockholders for monetary
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">damages for breach of fiduciary duty as
a director, except, if required by the General Corporation Law of the State of Delaware as amended
from time to time, for liability:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any breach of the director&#146;s duty of loyalty to Agere or its stockholders;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of law;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>under Section&nbsp;174 of the General Corporation Law of the State of Delaware, which
concerns unlawful payments of dividends, stock purchases or redemptions; or</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any transaction from which the director derived an improper personal benefit.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Neither the amendment nor repeal of such provision will eliminate or reduce the effect of such
provision in respect of any matter occurring, or any cause of action, suit or claim that, but for
such provision, would accrue or arise prior to such amendment or repeal.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed." -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable.
</DIV>
<!-- link2 "Item&nbsp;8. Exhibits." -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See Exhibit&nbsp;Index.
</DIV>
<!-- link2 "Item&nbsp;9. Undertakings." -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned registrant hereby undertakes:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;to file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;To include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of 1933;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;To reflect in the prospectus any facts or events arising after the effective date of this
registration statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in this registration
statement;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;To include any material information with respect to the plan of distribution not
previously disclosed in this registration statement or any material change to such information in
this registration statement;
</DIV>
<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Provided, however, that paragraphs (a)(1)(a) and (a)(1)(b) do not apply if the information required
to be included in a post-effective amendment by those paragraphs is contained in periodic reports
filed by the registrant pursuant to Section&nbsp;13 or Section 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in this registration statement.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;that, for the purpose of determining any liability under the Securities Act of 1933, each
such post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered herein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;to remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act of 1933, each filing of the registrant&#146;s annual report pursuant
to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 and each filing of the
annual report of the Management 401(k) Plan or the Represented 401(k) Plan pursuant to Section
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">15(d) of the Securities Exchange Act of 1934 that is incorporated by reference in this registration
statement shall be deemed to be a new registration statement relating to the securities offered
herein, and the offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act of 1933 and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a director, officer or
controlling person of the registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act of 1933 and will
be governed by the final adjudication of such issue.
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>The Company</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement or amendment thereto to be signed on its behalf by the
undersigned, thereunto duly authorized, in Allentown, Pennsylvania, on the 11<SUP style="font-size: 85%; vertical-align: text-top">th</SUP> day of
August, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">AGERE SYSTEMS INC.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">By: /s/ John W. Gamble, Jr.<BR>
Name: John W. Gamble, Jr.<BR>
Title: Executive Vice President and Chief Financial Officer
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement or amendment thereto has been signed below by the following persons in the capacities and
on the date indicated.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="38%">&nbsp;</TD>
    <TD width="4%">&nbsp;</TD>
    <TD width="58%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Principal Executive Officer:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">John T. Dickson
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ John T. Dickson</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">President, Chief Executive Officer
and Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Principal Financial Officer and</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Principal Accounting Officer:</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">John W. Gamble, Jr.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ John W. Gamble, Jr.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive Vice President
and Chief Financial Officer</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="38%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Directors:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Richard L. Clemmer*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">*By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ John W. Gamble, Jr.</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Richard S. Hill*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(John W. Gamble, Jr.</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Arun Netravali*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">attorney-in-fact)</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Thomas P. Salice*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Rae F. Sedel*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Harold A. Wagner*
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Date:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">August&nbsp;11, 2005</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>
<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>The Plan</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the trustees (or other persons who
administer the employee benefit plan) have duly caused this registration statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the city of Allentown, Commonwealth of
Pennsylvania, on this 11<SUP style="font-size: 85%; vertical-align: text-top">th</SUP> day of August, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">AGERE SYSTEMS INC. MANAGEMENT 401(k) PLAN
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">By: /s/ Mark S. Allen<BR>
Name: Mark S. Allen<BR>
Title: Director, Compensation and Benefits
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>The Plan</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the trustees (or other persons who
administer the employee benefit plan) have duly caused this registration statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the city of Allentown, Commonwealth of
Pennsylvania, on this 11<SUP style="font-size: 85%; vertical-align: text-top">th</SUP> day of August, 2005.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">AGERE SYSTEMS INC. REPRESENTED 401(k) PLAN
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 50%">By: /s/ Mark S. Allen<BR>
Name: Mark S. Allen<BR>
Title: Director, Compensation and Benefits
</DIV>

<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Restated Certificate of Incorporation. (Incorporated by reference
to Exhibit&nbsp;3.1.4 to Form&nbsp;8-K filed on June&nbsp;1, 2005).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Rights Agreement between the registrant and
Computershare Investor Services, LLC, as rights agent, originally
dated as of March&nbsp;26, 2001 and amended and restated as of May&nbsp;27,
2005 (incorporated by reference to Exhibit&nbsp;4.4 to Form&nbsp;8-K filed
June&nbsp;1, 2005).</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Jean F. Rankin, Senior Vice President, General Counsel
and Secretary of the registrant, as to the legality of the
securities to be issued.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">IRS determination letter for the Management 401(k) Plan.*</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">IRS determination letter for the Represented 401(k) Plan.*</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent Registered Public Accounting Firm -
PricewaterhouseCoopers LLP.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Independent Registered Public Accounting Firm &#151; KPMG.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Jean F. Rankin is contained in the opinion of counsel
filed as Exhibit&nbsp;5.1.</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney executed by
directors who signed
this registration statement.</TD>
</TR>
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    <TD nowrap align="left">*</TD>
    <TD>&nbsp;</TD>
    <TD>The plan has been amended subsequent to the date of the determination letter. Agere Systems
undertakes to submit the plan and any amendments thereto to the Internal Revenue Service in a
timely manner and undertakes to make all changes required by the Internal Revenue Service in order
to qualify the plan under Section&nbsp;401 of the Internal Revenue Code.</TD>
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S-8
Table of Contents
Registration No. 333-
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form S-8
REGISTRATION STATEMENT
Under
THE SECURITIES ACT OF 1933
AGERE SYSTEMS INC.
(Exact name of registrant as specified in its charter)
Delaware
22-3746606
(State or other jurisdiction
of incorporation or organization)
(I.R.S. Employer Identification No.)
1110 American Parkway NE
Allentown, Pennsylvania 18109
(Address of Principal Executive Offices)
Agere Systems Inc. Management 401(k) Plan
Agere Systems Inc. Represented 401(k) Plan
(Full Title of Plans)
Jean F. Rankin
Senior Vice President, General Counsel and Secretary
Agere Systems Inc.
1110 American Parkway NE
Allentown, Pennsylvania 18109
(610) 712-1000
(Name, address and telephone number, including area code, of agent for service)
CALCULATION OF REGISTRATION FEE
Title of Each Class
Amount
Proposed maximum
Proposed maximum
of Securities
to be
Offering price per
aggregate offering
Amount of
to be registered
registered
share (1)
price (1)
registration fee
Common stock (2)
1,500,000
(3)
$
11.715
Common stock (2)
700,000
(4)
$
11.715
Total
2,200,000
$
25,773,000
$
3,033.48
(1)
Estimated solely for the purpose of calculating the registration fee and, pursuant to Rule
457(c) under the Securities Act of 1933, based on the average of the high and low sale prices of
the common stock of Agere Systems Inc. on the New York Stock Exchange on August 4, 2005.
(2)
Includes associated rights to purchase Series A Junior Participating preferred stock, which
initially are attached to and trade with the shares of Agere's common stock being registered
hereby. Value attributable to such rights, if any, is reflected in the market price of Agere's
common stock.
(3)
Represents securities to be registered for sale in connection with the Agere Systems Inc.
Management 401(k) Plan.
(4)
Represents securities to be registered for sale in connection with the Agere Systems Inc.
Represented 401(k) Plan.
Pursuant to Rule 416 under the Securities Act of 1933, to the extent additional shares of Agere
common stock may be issued or issuable as a result of a stock split or other distribution declared
at any time by the Board of Directors while this registration statement is in effect, this
registration statement is hereby deemed to cover all such additional common stock.
In addition, pursuant to Rule 416(c) under the Securities Act of 1933, this registration statement
also covers an indeterminate amount of interests to be offered or sold pursuant to the employee
benefit plan(s) described herein.
TABLE OF CONTENTS
PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
Item 4. Description of Securities.
Item 5. Interests of Named Experts and Counsel.
Item 6. Indemnification of Directors and Officers.
Item 7. Exemption from Registration Claimed.
Item 8. Exhibits.
Item 9. Undertakings.
SIGNATURES
SIGNATURES
EXHIBIT INDEX
EX-5.1: OPINION OF JEAN F. RANKIN
EX-5.2: IRS DETERMINATION LETTER
EX-5.3: IRS DETERMINATION LETTER
EX-23.1: CONSENT OF PRICEWATERHOUSECOOPERS LLP
EX-23.2: CONSENT OF KPMG
EX-24: POWER OF ATTORNEY
Table of Contents
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents filed with the Securities and Exchange Commission are incorporated
herein by reference (File No. 1-16397):
(a) Agere's Annual Report on Form 10-K for the fiscal year ended September 30, 2004, filed
with the Commission on December 13, 2004.
(b) Agere's Quarterly Report on Form 10-Q for the quarter ended December 31, 2004, filed with
the Commission on February 4, 2005.
(c) Agere's Quarterly Report on Form 10-Q for the quarter ended March 31, 2005, filed with the
Commission on May 9, 2005.
(d) Agere's Quarterly Report on Form 10-Q for the quarter ended June 30, 2005, filed with the
Commission on August 4, 2005.
(e) Agere's Current Reports on Form 8-K filed with the Commission on October 26, 2004, January
25, 2005, January 26, 2005, March 9, 2005, April 26, 2005, June 1, 2005 and July 26, 2005, other
than information contained in any such report that is furnished under Items 2.02 or 7.01 and any
related exhibits.
(f) The description of Agere's common stock contained in our Current Report on Form 8-K,
filed on June 1, 2005, including any amendment or reports filed for the purpose of updating that
description.
(g) Agere Systems Inc. Management 401(k) Plan's Annual Report on Form 11-K for the year ended
December 31, 2004.
(h) Agere Systems Inc. Represented 401(k) Plan's Annual Report on Form 11-K for the year ended
December 31, 2004.
All documents filed subsequent to the date hereof by Agere with the Securities and Exchange
Commission pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934
and prior to the filing of a post-effective amendment hereto which indicates that all securities
offered hereby have been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference herein and made a part hereof from their respective dates of
filing;
provided, however,
that the documents enumerated above or subsequently filed by Agere
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934 in each year
during which the offering made hereby is in effect prior to the filing with the Securities and
Exchange Commission of Agere's Annual Report on Form 10-K covering such year shall not be
incorporated by reference herein or be a part hereof from and after the filing of such Annual
Report on Form 10-K.
Any statement contained in a document incorporated by reference herein shall be deemed to be
modified or superseded for purposes hereof to the extent that a statement contained herein or in
any other subsequently filed document that is incorporated by reference modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part hereof.
Item 4. Description of Securities.
Not Applicable.
Item 5. Interests of Named Experts and Counsel.
Not Applicable.
Table of Contents
Item 6. Indemnification of Directors and Officers.
Section 145 of the General Corporation Law of the State of Delaware provides that a
corporation may indemnify directors and officers as well as
other employees and individuals against expenses including attorneys' fees, judgments, fines and
amounts paid in settlement in connection with various actions, suits or proceedings, whether civil,
criminal, administrative or investigative other than an action by or in the right of the
corporation, a derivative action, if they acted in good faith and in a manner they reasonably
believed to be in or not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, if they had no reasonable cause to believe their conduct was
unlawful.
A similar standard is applicable in the case of derivative actions, except that
indemnification only extends to expenses including attorneys' fees incurred in connection with the
defense or settlement of such actions, and the statute requires court approval before there can be
any indemnification where the person seeking indemnification has been found liable to the
corporation. The statute provides that it is not exclusive of other indemnification that may be
granted by a corporation's by-laws, disinterested director vote, stockholder vote, agreement or
otherwise. Agere's certificate of incorporation provides that each person who was or is made a
party or is threatened to be made a party to or is involved in any action, suit or proceeding,
whether civil, criminal, administrative or investigative, by reason of the fact that such person,
or a person of whom such person is the legal representative, is or was a director or officer of
Agere or is or was serving at Agere's request as a director, officer, employee or agent of another
corporation or of a partnership, joint venture, trust or other enterprise, including service with
respect to employee benefit plans, whether the basis of such proceeding is the alleged action of
such person in an official capacity as a director, officer, employee or agent or in any other
capacity while serving as a director, officer, employee or agent, will be indemnified and held
harmless by Agere to the fullest extent authorized by the General Corporation Law of the State of
Delaware, as the same exists or may hereafter be amended against all expense, liability and loss
reasonably incurred or suffered by such person in connection therewith.
Agere's certificate of incorporation also provides that Agere will pay the expenses incurred
in defending any such proceeding in advance of its final disposition, subject to the provisions of
the General Corporation Law of the State of Delaware. Such rights are not exclusive of any other
right which any person may have or thereafter acquire under any statute, provision of the
certificate, by-law, agreement, vote of stockholders or disinterested directors or otherwise. No
repeal or modification of such provision will in any way diminish or adversely affect the rights of
any director, officer, employee or agent of Agere thereunder in respect of any occurrence or matter
arising prior to any such repeal or modification.
Agere's certificate of incorporation also specifically authorizes Agere to maintain insurance
and to grant similar indemnification rights to Agere's employees or agents. The General
Corporation Law of the State of Delaware permits a corporation to provide in its certificate of
incorporation that a director of the corporation shall not be personally liable to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a director, except for
liability for:
•
any breach of the director's duty of loyalty to the corporation or its stockholders;
•
acts or omissions not in good faith or which involve intentional misconduct or a knowing
violation of law;
•
payments of unlawful dividends or unlawful stock repurchases or redemptions; or — any
transaction from which the director derived an improper personal benefit.
Agere's certificate of incorporation provides that none of Agere's directors will be
personally liable to Agere or its stockholders for monetary
Table of Contents
damages for breach of fiduciary duty as
a director, except, if required by the General Corporation Law of the State of Delaware as amended
from time to time, for liability:
•
for any breach of the director's duty of loyalty to Agere or its stockholders;
•
for acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of law;
•
under Section 174 of the General Corporation Law of the State of Delaware, which
concerns unlawful payments of dividends, stock purchases or redemptions; or
•
for any transaction from which the director derived an improper personal benefit.
Neither the amendment nor repeal of such provision will eliminate or reduce the effect of such
provision in respect of any matter occurring, or any cause of action, suit or claim that, but for
such provision, would accrue or arise prior to such amendment or repeal.
Item 7. Exemption from Registration Claimed.
Not Applicable.
Item 8. Exhibits.
See Exhibit Index.
Item 9. Undertakings.
(a) The undersigned registrant hereby undertakes:
(1) to file, during any period in which offers or sales are being made, a post-effective
amendment to this registration statement:
(a) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(b) To reflect in the prospectus any facts or events arising after the effective date of this
registration statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in this registration
statement;
(c) To include any material information with respect to the plan of distribution not
previously disclosed in this registration statement or any material change to such information in
this registration statement;
Provided, however, that paragraphs (a)(1)(a) and (a)(1)(b) do not apply if the information required
to be included in a post-effective amendment by those paragraphs is contained in periodic reports
filed by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in this registration statement.
(2) that, for the purpose of determining any liability under the Securities Act of 1933, each
such post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered herein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
(3) to remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
(b) The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant
to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 and each filing of the
annual report of the Management 401(k) Plan or the Represented 401(k) Plan pursuant to Section
Table of Contents
15(d) of the Securities Exchange Act of 1934 that is incorporated by reference in this registration
statement shall be deemed to be a new registration statement relating to the securities offered
herein, and the offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the registrant pursuant to the
foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act of 1933 and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a director, officer or
controlling person of the registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act of 1933 and will
be governed by the final adjudication of such issue.
Table of Contents
SIGNATURES
The Company
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it
has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
has duly caused this registration statement or amendment thereto to be signed on its behalf by the
undersigned, thereunto duly authorized, in Allentown, Pennsylvania, on the 11
th
day of
August, 2005.
AGERE SYSTEMS INC.
By: /s/ John W. Gamble, Jr.
Name: John W. Gamble, Jr.
Title: Executive Vice President and Chief Financial Officer
Pursuant to the requirements of the Securities Act of 1933, as amended, this registration
statement or amendment thereto has been signed below by the following persons in the capacities and
on the date indicated.
Principal Executive Officer:
John T. Dickson
/s/ John T. Dickson
President, Chief Executive Officer
and Director
Principal Financial Officer and
Principal Accounting Officer:
John W. Gamble, Jr.
/s/ John W. Gamble, Jr.
Executive Vice President
and Chief Financial Officer
Directors:
Richard L. Clemmer*
*By:
/s/ John W. Gamble, Jr.
Richard S. Hill*
(John W. Gamble, Jr.
Arun Netravali*
attorney-in-fact)
Thomas P. Salice*
Rae F. Sedel*
Harold A. Wagner*
Date:
August 11, 2005
Table of Contents
SIGNATURES
The Plan
Pursuant to the requirements of the Securities Act of 1933, the trustees (or other persons who
administer the employee benefit plan) have duly caused this registration statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the city of Allentown, Commonwealth of
Pennsylvania, on this 11
th
day of August, 2005.
AGERE SYSTEMS INC. MANAGEMENT 401(k) PLAN
By: /s/ Mark S. Allen
Name: Mark S. Allen
Title: Director, Compensation and Benefits
Table of Contents
SIGNATURES
The Plan
Pursuant to the requirements of the Securities Act of 1933, the trustees (or other persons who
administer the employee benefit plan) have duly caused this registration statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the city of Allentown, Commonwealth of
Pennsylvania, on this 11
th
day of August, 2005.
AGERE SYSTEMS INC. REPRESENTED 401(k) PLAN
By: /s/ Mark S. Allen
Name: Mark S. Allen
Title: Director, Compensation and Benefits
Table of Contents
EXHIBIT INDEX
Exhibit
Number
4.1
Restated Certificate of Incorporation. (Incorporated by reference
to Exhibit 3.1.4 to Form 8-K filed on June 1, 2005).
4.2
Amended and Restated Rights Agreement between the registrant and
Computershare Investor Services, LLC, as rights agent, originally
dated as of March 26, 2001 and amended and restated as of May 27,
2005 (incorporated by reference to Exhibit 4.4 to Form 8-K filed
June 1, 2005).
5.1
Opinion of Jean F. Rankin, Senior Vice President, General Counsel
and Secretary of the registrant, as to the legality of the
securities to be issued.
5.2
IRS determination letter for the Management 401(k) Plan.*
5.3
IRS determination letter for the Represented 401(k) Plan.*
23.1
Consent of Independent Registered Public Accounting Firm -
PricewaterhouseCoopers LLP.
23.2
Consent of Independent Registered Public Accounting Firm — KPMG.
23.3
Consent of Jean F. Rankin is contained in the opinion of counsel
filed as Exhibit 5.1.
24
Power of Attorney executed by
directors who signed
this registration statement.
*
The plan has been amended subsequent to the date of the determination letter. Agere Systems
undertakes to submit the plan and any amendments thereto to the Internal Revenue Service in a
timely manner and undertakes to make all changes required by the Internal Revenue Service in order
to qualify the plan under Section 401 of the Internal Revenue Code.