A Z-trap in an atom chip for trapping neutral ~(87)Rb atoms;

Here we review the development of the research of atom chip.

An application scheme of the digital signal in an atom chip is proposed.

Integrated atom optics: atom chips;

With the fast development and perfecting of laser cooling, trapping and manipulating of neutral atoms as well as microelectric fabrication techniques with micrometer and nanometer scale, a new branch subject of atom optics, "integrated atom optics and its atom chips", has been formed.

Serial real-time clock chip S-3530A is of the characters of low working voltage,high accuracy,and uses serial I2C interface to communication and so on.

This article introduces the characteristics of a new type serial interface of 8-bit LED , the intelligence controlling chip of HD7279A and the application in clock chip.

Characteristic of Microcomputer AT89C52,applica-tions of clock chip DS12887of cross over2000years and char-acter type liquid crystal display module HD44780are intro-duced.

Combing with the need of a big enterprise based on realtime time chip which is used to turn on and turn off computers is introduced in this paper.

In this article,how to apply a new kind of time chips-DS12C887 in the system which can check meters wirelessly is recommended,thus realized the central controllers could read and store the data of every extensions on time.

According to the different requirements of time in the single-chipcomputer system, this paper discusses the application of real-time chip in the high accuracy time control system.