Free Writing Prospectus

Filed pursuant to Rule 433

Registration No. 333-180984

Issuer Free Writing Prospectus dated May 1, 2012

Relating to Preliminary Prospectus Supplement dated May 1, 2012

Altera Corporation

Pricing Term Sheet

 

Issuer:

   Altera Corporation

Size:

   $500,000,000

Maturity:

   May 15, 2017

Coupon:

   1.750%

Price to Public:

   99.847% of face amount

Yield to Maturity:

   1.782%

Spread to Benchmark Treasury:

   T+ 95 bps

Benchmark Treasury:

   UST 0.875% due April 30, 2017

Benchmark Treasury Price and Yield:

   100-06  3/4 ; 0.832%

Interest Payment Dates:

   May 15 and November 15, commencing November 15, 2012

Optional Redemption

   Make-whole call at any time at the greater of a price of 100% or a discount rate of Treasury plus 15 basis points

Change of Control Put

   101% of the principal amount plus accrued interest

Settlement:

   T+5; May 8, 2012

Ratings*:

  

Moody’s: A2 (Stable)

S&P: A- (Stable)

CUSIP/ ISIN

   021441 AD2 / US021441AD24

Joint Book-Running Managers

  

J.P. Morgan Securities LLC

Merrill Lynch, Pierce, Fenner & Smith

                     Incorporated

Morgan Stanley & Co. LLC

Senior Co-Managers

  

Citigroup Global Markets Inc.

U.S. Bancorp Investments, Inc.

Co-Manager

   The Williams Capital Group, L.P.

*A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal by the assigning rating organization at any time. Each rating should be evaluated independently of any other rating.

The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling J.P. Morgan Securities LLC collect at 212-834-4533, Merrill Lynch, Pierce, Fenner & Smith Incorporated toll free at 1-800-294-1322 or Morgan Stanley & Co. LLC toll free at 1-866-718-1649.