With regard to the product structure, in 2006, pulled by the expansion of the export market and domestic market, and the production of small household appliance like vacuum cleaners, intelligent electric rice cooker, electric fans, and remote controllers increasing rapidly, the sales of the 4-bit low-end MCU was promoted and increased by 31.2%. As for sales, 4-bit MCU still has great demand space and in the next few years will account for about 10% of the total sales of consumer MCU in China. But since the price of 4-bit MCU decreases relatively rapidly, the increase of sales will not reach a very high point.