SILICON LABORATORIES INC. — Director's Dealing 2010

Jan 19, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SILICON LABORATORIES INC (SLAB)
CIK: 0001038074
Period of Report: 2010-01-15

Reporting Person: WOOD WILLIAM P (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-01-15	Common Stock, $0.0001 par value	M	5000	$31	Acquired	10388	Direct
2010-01-15	Common Stock, $0.0001 par value	S	5000	$45.57	Disposed	5388	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-01-15	Non-Qualified Stock Option (right to buy)	$31	M	5000	Disposed	2010-03-23	Common Stock, $0.0001 par value (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, $0.0001 par value	155776	Indirect

Footnotes

F1: Shares sold pursuant to Reporting Person's 10b5-1 Trading Plan.

F2: Reporting Person is a general partner of Silverton Partners, LP. Reporting Person may be deemed a beneficial owner of the shares held by Silverton Partners, LP, but disclaims beneficial ownership in the shares held by Silverton Partners, LP, except to the extent of any indirect pecuniary interest therein.

F3: Option is immediately exercisable, but the shares vest in four equal annual installments upon each anniversary of March 23, 2000.

F4: Not applicable per instruction 4(c)(iii).