DATA I/O CORP — Director's Dealing 2004

Aug 3, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DATA I/O CORP (DAIO)
CIK: 0000351998
Period of Report: 2004-07-31

Reporting Person: HATLEN JOEL S (Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-08-02	Common Stock	J	3151	$2.38	Acquired	81354	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2500	Indirect
Common Stock	2500	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Option (right to buy)	$3.4845	2004-08-03	Common Stock (16000)	103000	Direct

Footnotes

F1: Shares were acquired through the Company's 1982 Employee Stock Purchase Plan.

F2: Options expired on 8/3/04.