As the saying goes, everything's bigger in Texas, and that includes Texas Instruments' (TI) share of the semiconductor market. The Dallas-based firm announced today that it will pay $6.5 billion for National Semiconductors. With the acquisition complete, National will become a branch of TI's analog segment, which is now positioned to make up 50 percent of the company's revenue. According to a joint press release, TI held the biggest chunk of the analog semiconductor market in 2010 at 14 percent, and with the new addition that n