Charley MacKay Denton, 64, a Department of Commerce official since 1960, died Monday at his home in Washington after apparently suffering a heart attack.

He had been director of the office of business research and analysis in the Bureau of Domestic Commerce since March 1975.

Earlier he had directed the office of scientific and technical equipment and was assistant administrator for industru operations at Commerce. He was awarded the department's Gold Medal.

Born in Winslow, Ariz, Mr. Denton was graduate of the University of California. He was a professional mechanical enigneer.

He had served as a consulting engineer in Los Angeles, as chief pipping engineer of the California Shipbuilding Co. and as partner in Pacific Tanks co.

During 1948&52, he was president and chairman of the board of the Pacific Iron and Steel Export in Los Angeles. and traveled extensively in South America, the Far East and Affrica in connection with his work. He then returned to Pacific Tanks Co. as president, remaining there until 1960.

Mr. Denton was a Mason and member of the Scottish Rite, the Propeller Club of America and the American Foreign Service Association.

He is survived by his wife, joan Stephens Miller Denotn, and two daughters, Diane and Amy, all of the home.

The family suggests that expressions of sympathy may be in the form of contributions to the Masonic Homes Endowment Fund in Long Beach, Calif, or the Salvation Army.