TI company, headquartered in Dallas City, Texas, USA, is a global semiconductor company, the world's leading designer and supplier of digital signal processing and analog technology, and the engine to promote the electronic digital process. The company has factories, branches or offices in more than 30 countries. There are several business departments as follows: 1. Semiconductor Department: in 1997, semiconductor revenue accounted for 83 [%] of the total revenue. The main products are DSP scheme, in addition to microcontroller and ASIC. 2. Education product business department: at present, TI company is in the leading position in portable education technology. 3. Materials & Control: the department serves the automotive, climate control, electronic, communications, optical, aircraft markets. 4. The main IC products of digital light processing include: digital signal processor, analog and mixed signal device, digital logic, ASIC, microcontroller, voice and graphics processor, programmable logic, military device, etc.