Chipmaker Texas Instruments has lowered the top end range of its estimates for earnings per share and revenue in the third quarter. The company anticipates earnings per share for the quarter will range from 66 cents to 72 cents. It had previously projected earnings per share of 64 cents to 74 cents. It expects revenue for the quarter will range from US$3.62 billion to US$3.78 billion. It had previously projected revenue of US$3.55 billion to US$3.85 billion.