Exhibit 12.1

Texas Instruments Incorporated

Consolidated Ratio of Earnings to Fixed Charges

	2009		2008		2007		2006		2005
EARNINGS:
Income from continuing operations before income tax & (loss) gain on equity method investments	$	2,021	$	2,490	$	3,682	$	3,629	$	2,764
Add:    Fixed charges (shown below)		16		23		24		39		40
Amortization of capitalized interest		4		4		6		5		9
Distributed income from equity investees		5		1		0		0		0
Subtract:
Capitalized interest		0		0		0		5		5
Total earnings	$	2,046	$	2,518	$	3,712	$	3,668	$	2,808
FIXED CHARGES:
Total interest on loans (expensed)	$	0	$	0	$	1	$	7	$	9
Capitalized interest		0		0		0		5		5
Estimated interest element of rental and lease expense		16		23		23		27		26
Total fixed charges	$	16	$	23	$	24	$	39	$	40
Ratio of earnings to fixed charges		127.9		109.5		154.7		94.1		70.2