By Benjamin Pimentel

The tech sector traded flat Tuesday morning as the broader market retreated on news that the U.S. consumer confidence index fell in September.

The Conference Board report cut short a modest tech rally, powered by gains in shares of Broadcom Corp. which jumped after Barclays Capital upgraded the chip maker's rating to overweight.

Broadcom (BRCM) was up 2.6% after analyst Tim Luke raised the company's rating from equal weight, saying the company "may be poised to regain momentum."

But the economic report took its toll on the sector. The Nasdaq Composite Index (RIXF) was down a fraction at 2,130 at last check. The Philadelphia Semiconductor Index (SOX) was up 0.1%, but the Morgan Stanley High Tech 35 Index (MSH) was down 0.2%.

Among the gainers were Palm Inc. (PALM) shares of which rose 1.8%, and Rambus Inc. (RMBS) which was up 2.8%.

But other major tech players were in the red, including Dell Inc. (DELL), Amazon.com (AMZN) and SanDisk Corp. (SNDK)