【正文】 the performance of these new technologies in the following points: 1, EFT (Ellectrical Fast Transient) technology 2, EFT is an antijamming technology, which is defined as the sinusoidal signal oscillation circuit outside interference, the waveform will be a variety of Deburring signal superposition, if you use their plastic Schmidt circuit, it will bee a burr trigger signals interfere with the normal clock, in the alternate use of Schmitt circuit and RC filter circuit, it can be eliminated or their role in these gross failure to ensure that the clock signal systems work properly. In this way, a single chip to enhance the reliability of the work. Motorola39。s. 3, the progress of technology Basically, the current singlechip CMOS technology used, but most use ? M above the lithography process, there are individual panies such as Motorola Inc. have been using ? M or even ? M technology. These technological advances greatly improved the internal singlechip density and reliability. 4 Third embedded system as the core of a singlechip SCM is a new name embedded microcontroller, because it can be embedded into any microor smallscale equipment or equipment. At present, the singlechip embedded systems and Inter connectivity is a trend. However, Inter has been used as a fat server, thin machine technology users. This technology on the Inter to store and access large amounts of data is appropriate, but for control of embedded devices has bee the sledgehammer cracking a nut, the. Embedded devices to achieve and Int er connection, we need the Inter to the traditional theory and practice of embedded devices are reversed. In order to make plex or simple embedded devices, such as singlechip microputercontrolled machine tools, singlechip microputercontrolled door locks, can be practical and Inter connection, requires specialized equipment for the embedded microcontroller design a web server to embed devices can be connected to Inter, and through a standard Web browser to process control. At present, in order to singlechip microputer as the core of embedded systems and Inter connected panies, there are many more studies in this area. More typical in this regard have emWare and TASKING pany. Embedded systems panies EmWare work program EMIT technology. This technology consists of three main parts: the emMicro, emGateway and web browser. Which, emMicro embedded devices is a 1Kbyte memory capacity accounted for only a very small web servers。s F2MC8L MCU meet the vast majority of the ~ 6V operating voltage conditions. MSP430X11X and TI39。s MSP430 family of single chip, it is a series of 16, there are ultralow power work. Its lowpower way LPM1, LPM3, LPM4 three. When the power supply to 3V, if the work in the LMP1, even if the external circuit is active, inactive as a result of CPU, oscillator at 1 ~ 4MHz, when power consumption is only 50? A. In LPM3, the oscillator at 32kHz, this power consumption is only ? A. In LPM4 when, CPU, peripherals and not the activities of 32kHz oscillator, the power consumption is only ? A. Now the level of singlechip package has been greatly enhanced, with the emergence of chip technology, a large number of singlechip also used a variety of chip technology in line with the package appears to significantly reduce the volume. In this situation, Microchip has introduced the singlechip 8pin special attention. This is PIC12CXXX series. It contains ~ 2K program memory, 25 ~ 128 bytes of data memory, 6 I / O port and a timer, and some also with four A / D, fully able to meet a number of lowgrade system. To expand the scope of supply voltage and low voltage work is still today one of the objectives of singlechip development. At the moment, it can be singlechip ~ conditions. And some manufacturers, it can produce ~ 6V to work under the conditions of the single chip. These singlechip panies are Fujitsu39。 Hitachi39。s MC68HC08MR16, MR24 and so on. In these singlechip, the pulse width modulation circui