Exhibit 12

TEXAS INSTRUMENTS INCORPORATED AND SUBSIDIARIES

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Millions of dollars)

	2006		2005		2004		2003			2002
EARNINGS:
Income (loss) from continuing operations	$	2,638	$	2,173	$	1,691	$	1,065		($	475	)
Add: Provision (benefit) for income taxes		987		582		481		(15	)		(58	)
Amortization of capitalized interest		5		9		10		12			15
Fixed charges from below		34		35		40		61			80
Total earnings (loss)	$	3,664	$	2,799	$	2,222	$	1,123		($	438	)
FIXED CHARGES:
Total interest on loans (expensed)	$	7	$	9	$	21	$	39		$	57
Interest attributable to rental and lease expense		27		26		19		22			23
Fixed charges deducted from earnings		34		35		40		61			80
Capitalized interest		5		5		3		2			3
Total fixed charges	$	39	$	40	$	43	$	63		$	83
Ratio of earnings to fixed charges		93.9		70.0		51.7		17.8			*

* The ratio is not meaningful. The coverage deficiency was $521 million in year 2002.