Introduction - If you have any usage issues, please Google them yourself
Today' s society is a digital society, it is widely used in digital integrated circuits community, digital integrated circuits were constantly upgrading itself. It consists of the early vacuum tubes, transistors, small-scale integrated circuit, the development of ultra large scale integrated circuit (VLSIC, tens of thousands over the door) and many special features with a specific set of circuits. However, with the development of microelectronics technology, the task of design and manufacture of integrated circuits, semiconductor manufacturers have not fully come to independently. System designers are more willing to design their own application specific integrated circuit (ASIC) chip