Exhibit (a)(1)(S)

Lattice Exchange Offer Calculator

Eligible Options for New Options - 1996 Plan
Exercise Price of Eligible Options
Greater than or Equal to..		Less than or Equal to..	Exchange Ratio	Eligible Options	New Options
$ 3.91	to	$4.99	3.00 : 1	5,000	1,666
$ 5.00	to	$7.49	4.00 : 1	4,000	1,000
$ 7.50	to	$9.99	7.50 : 1	3,000	400
$ 10.00	to	And Up	10.00 : 1	2,000	200
Eligible Options for Restricted Stock Units - 2001 Plan
Exercise Price of Eligible Options
Greater than or Equal to..		Less than or Equal to..	Exchange Ratio	Eligible Options	Restricted Stock Units
$ 3.91	to	$4.99	7.25 : 1	4,000	551
$ 5.00	to	$7.49	13.00 : 1	3,000	230
$ 7.50	to	$9.99	19.75 : 1	2,000	101
$ 10.00	to	And Up	20.00 : 1	1,000	50

The foregoing spreadsheet allows you to calculate the number of new options or restricted stock units that you would receive in this offer for your eligible options based on the final exchange ratios. To determine the numbers, you will need to input the number of eligible options that you hold in each price range, which will result in a calculation of the number of new options or restricted stock units. The final exchange ratios above are based on application of the Black-Scholes value calculated using the average closing price of our common stock over the thirty (30) calendar day period ending on February 3, 2009.