News Release

Supplemental Historic Financial Information

LATTICE SEMICONDUCTOR CORPORATION

- Supplemental Historic Financial Information -

(Q1 2001)

Operations Information (EBG)	Q101	Q400	Q100
Percent of Revenue
Gross Margin	62.3%	62.1%	60.7%
R&D Expense	16.4%	12.9%	14.5%
SG&A Expense	15.7%	13.9%	15.5%
Operating Income	30.2%	35.3%	30.7%
EBG	24.5%	26.8%	95.2%
Tax Rate	33.0%	33.0%	37.5%
Depreciation Expense ($000)	4,635	4,643	3,983
Capital Expenditures ($000)	3,877	3,015	8,590
Balance Sheet Information	Q101	Q400	Q100
Current Ratio	5.6	4.4	2.2
A/R Days Revenue Outstanding	25	30	42
Inventory Turns	2.4	3.8	6.5
Revenue % (by Product Family)	Q101	Q400	Q100
High Density	77%	78%	72%
Low Density	23%	22%	28%
Revenue % (by Geography)	Q101	Q400	Q100
Americas	54%	50%	51%
Europe (incl Africa)	25%	26%	30%
Asia (incl ROW)	21%	24%	19%
Revenue % (by End Market)	Q101	Q400	Q100
Communications	56%	67%	66%
Computing	24%	20%	21%
Other	20%	13%	13%
Revenue % (by Channel)	Q101	Q400	Q100
Direct	42%	51%	49%
Distribution	58%	49%	51%

Appendix 1

Lattice Semiconductor Corporation

Consolidated Statement of Operations

(in thousands, except per share data)

	Three months ended (unaudited)
Description	Mar. 31, 2001	Dec. 31, 2000	Mar. 31, 2000
Revenue	$111,098	$150,788	$126,055
Costs and expenses:
Costs of products sold	41,910	57,170	49,585
Research and development	18,189	19,485	18,243
Selling, general and administrative	17,401	20,925	19,514
Amortization of intangible assets (1)	20,737	20,663	20,362
Total costs and expenses	98,237	118,243	107,704
Income from operations	12,861	32,545	18,351
Gain on appreciation of foundry
investments (2)	-	-	149,960
Other income (expense), net	2,951	3,010	(1,161)
Income before provision
for income taxes	15,812	35,555	167,150
Provision for income taxes	4,536	11,932	62,329
Net income	$11,276	$23,623	$104,821
Basic net income per share	$0.10	$0.22	$1.08
Diluted net income per share	$0.10	$0.21	$0.92
Shares used in per share calculations:
Basic	108,082	107,520	97,476
Diluted (3)	112,038	124,415	116,818

(1) Goodwill (intangible assets) is $270.383 million, net, at March 31, 2001 and relates to the acquisition of Vantis Corporation on June 16, 1999 and the acquisition of Integrated Intellectual Property Inc. ("I2P") on March 16, 2001. Goodwill is amortized to expense generally over five years on a straight-line basis. Assuming a full quarter of amortization for I2P, quarterly amortization expense would be approximately $21.1 million.

(2) Represents appreciation of foundry investments in Taiwan.

(3) For the three months ended December 31, 2000 and March 31, 2000, the computation of diluted net income per share includes the effect of stock options and $260 million of convertible notes. Diluted net income per share is adjusted to exclude interest expense and debt issuance cost amortization (net of tax) of $2.354 and $2.388 million for the December 2000 and March 2000 quarters respectively. For the March 31, 2001 quarter, the computation of diluted net income per share includes only the effect of stock options as the convertible notes are anti-dilutive. Diluted weighted-average shares outstanding include the dilutive effect of stock options and approximately 12.548 million shares issuable on the assumed conversion of the notes. All share and per share amounts have been adjusted retroactively to reflect the two-for-one stock split effected in the form of a stock dividend which was paid on October 11, 2000.

Appendix 2

Lattice Semiconductor Corporation

(unaudited)

	Three months ended
Description	Mar. 31, 2001	Dec. 31, 2000	Mar. 31, 2000
Earnings Before Goodwill	$0.24	$0.34	$1.05
Less:
Amortization of intangible assets	($0.13)	($0.11)	($0.13)
Tax shield (2)	($0.02)	($0.02)	($0.02)
Difference in effective tax rate (3)	$0.01	--	$0.02
Diluted Net Income Per Share	$0.10	$0.21	$0.92

Notes:

(1) This table reconciles Earnings Before Goodwill per share information to Diluted Net Income per share which is presented in Appendix 1.

(2) Tax Shield represents the current period tax deduction available from amortizing intangible assets ($503.014 million) over 15 years on a straight line basis using a 33% tax rate.

(3) The effective tax rate is the ratio of income tax expense to pretax income. The rates for the three months ended March 31, 2001 and March 31, 2000, respectively, in the Earnings Before Goodwill presentation are different from the rates in the GAAP Statements of Operations. The difference for both three month periods is due to the difference in the proportion of taxable income derived from operations.