一种廉价的计算器集成电路测试系统──微机测试系统

A Low-Costed Testing System of Calculator Integrated Circuit──the micromachine testing system

本文扼要地介绍了计算器集成电路的自身测试方法，并根据这种测试方法给出了微机测试计算器集成电路的系统结构。然后着重阐述了微机与计算器集成电路的硬件接口，它包括键盘接口、LCD段码接口、背极信号接口，以及计算器集成电路静态电参数的测试方法与接口线路。

This paper briefly introduces self - testing method of calculator integraed cirouit. According to the self - testing method, a micromachine system structure of testing calculator integrated circuit is provided. Then, we’ll focus our discussion on hardware interface between micromachine and calculator integrated cireuit, including keybo ard interface, LCD interface, backplane inteface, the method andInterface circuit in testing static electrieal parameter of calculator integrated circuit.